./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_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_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/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 3c089be7b4887d2975165f6135c093492cb2095b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:04:19,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:04:19,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:04:19,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:04:19,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:04:19,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:04:19,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:04:19,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:04:19,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:04:19,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:04:19,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:04:19,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:04:19,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:04:19,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:04:19,416 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:04:19,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:04:19,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:04:19,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:04:19,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:04:19,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:04:19,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:04:19,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:04:19,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:04:19,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:04:19,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:04:19,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:04:19,426 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:04:19,426 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:04:19,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:04:19,427 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:04:19,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:04:19,428 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:04:19,428 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:04:19,428 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:04:19,429 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:04:19,429 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:04:19,430 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 13:04:19,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:04:19,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:04:19,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:04:19,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:04:19,439 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:04:19,439 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 13:04:19,439 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 13:04:19,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:04:19,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:04:19,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:04:19,442 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 13:04:19,442 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:04:19,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 13:04:19,444 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:04:19,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:04:19,444 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 13:04:19,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:04:19,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:04:19,444 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 13:04:19,445 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 13:04:19,445 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_ee777ef2-6126-4a26-9857-fac66fcad4ce/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 -> 3c089be7b4887d2975165f6135c093492cb2095b [2018-11-18 13:04:19,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:04:19,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:04:19,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:04:19,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:04:19,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:04:19,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 13:04:19,526 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/data/efbc8caad/7f5319523c194425b30ceb080bba703f/FLAG1842abb20 [2018-11-18 13:04:19,954 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:04:19,955 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 13:04:19,962 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/data/efbc8caad/7f5319523c194425b30ceb080bba703f/FLAG1842abb20 [2018-11-18 13:04:19,971 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/data/efbc8caad/7f5319523c194425b30ceb080bba703f [2018-11-18 13:04:19,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:04:19,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:04:19,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:04:19,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:04:19,978 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:04:19,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:04:19" (1/1) ... [2018-11-18 13:04:19,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70682c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:19, skipping insertion in model container [2018-11-18 13:04:19,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:04:19" (1/1) ... [2018-11-18 13:04:19,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:04:20,023 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:04:20,227 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:04:20,236 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:04:20,340 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:04:20,358 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:04:20,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20 WrapperNode [2018-11-18 13:04:20,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:04:20,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:04:20,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:04:20,359 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:04:20,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:04:20,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:04:20,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:04:20,424 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:04:20,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... [2018-11-18 13:04:20,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:04:20,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:04:20,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:04:20,471 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:04:20,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/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 13:04:20,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:04:20,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:04:20,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:04:21,347 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:04:21,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:04:21 BoogieIcfgContainer [2018-11-18 13:04:21,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:04:21,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 13:04:21,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 13:04:21,351 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 13:04:21,352 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:04:21,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 01:04:19" (1/3) ... [2018-11-18 13:04:21,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ac11e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:04:21, skipping insertion in model container [2018-11-18 13:04:21,353 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:04:21,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:04:20" (2/3) ... [2018-11-18 13:04:21,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ac11e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:04:21, skipping insertion in model container [2018-11-18 13:04:21,354 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:04:21,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:04:21" (3/3) ... [2018-11-18 13:04:21,355 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 13:04:21,397 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:04:21,398 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 13:04:21,398 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 13:04:21,398 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 13:04:21,398 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:04:21,398 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:04:21,398 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 13:04:21,399 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:04:21,399 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 13:04:21,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states. [2018-11-18 13:04:21,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2018-11-18 13:04:21,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:04:21,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:04:21,451 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,451 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,451 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 13:04:21,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states. [2018-11-18 13:04:21,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2018-11-18 13:04:21,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:04:21,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:04:21,457 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,458 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,462 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 33#L395true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 298#L388true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 207#L403true main_#t~ret63 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 301#L856true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 172#L833true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 158#L313-3true [2018-11-18 13:04:21,462 INFO L796 eck$LassoCheckResult]: Loop: 158#L313-3true assume true; 157#L313-1true assume !false; 143#L314true assume test_~splverifierCounter~0 < 4; 213#L315true test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 64#L323true assume !(0 != test_~tmp~6); 71#L323-2true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 302#L333true assume !(0 != test_~tmp___0~2); 305#L333-2true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 168#L343true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5#L296true assume { :end_inline_startSystem } true; 13#L351-2true assume { :begin_inline_timeShift } true; 23#L59true assume !(0 != ~pumpRunning~0); 59#L59-2true assume !(0 != ~systemActive~0); 152#L66-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 122#L914-5true __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 281#L983true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 283#L983-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 15#L76true assume { :end_inline_timeShift } true; 158#L313-3true [2018-11-18 13:04:21,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 13:04:21,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:21,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:21,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:04:21,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:21,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:21,624 INFO L82 PathProgramCache]: Analyzing trace with hash 431072947, now seen corresponding path program 1 times [2018-11-18 13:04:21,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:21,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:21,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:04:21,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:04:21,660 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 13:04:21,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:04:21,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:04:21,664 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 13:04:21,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:04:21,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:04:21,675 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2018-11-18 13:04:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:04:21,728 INFO L93 Difference]: Finished difference Result 318 states and 419 transitions. [2018-11-18 13:04:21,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:04:21,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 419 transitions. [2018-11-18 13:04:21,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2018-11-18 13:04:21,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 308 states and 408 transitions. [2018-11-18 13:04:21,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 308 [2018-11-18 13:04:21,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 308 [2018-11-18 13:04:21,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 308 states and 408 transitions. [2018-11-18 13:04:21,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:04:21,743 INFO L705 BuchiCegarLoop]: Abstraction has 308 states and 408 transitions. [2018-11-18 13:04:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states and 408 transitions. [2018-11-18 13:04:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2018-11-18 13:04:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-11-18 13:04:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 408 transitions. [2018-11-18 13:04:21,772 INFO L728 BuchiCegarLoop]: Abstraction has 308 states and 408 transitions. [2018-11-18 13:04:21,772 INFO L608 BuchiCegarLoop]: Abstraction has 308 states and 408 transitions. [2018-11-18 13:04:21,772 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 13:04:21,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 408 transitions. [2018-11-18 13:04:21,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2018-11-18 13:04:21,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:04:21,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:04:21,775 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,775 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:21,775 INFO L794 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 662#L395 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 696#L388 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 913#L403 main_#t~ret63 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 914#L856 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 892#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 670#L313-3 [2018-11-18 13:04:21,776 INFO L796 eck$LassoCheckResult]: Loop: 670#L313-3 assume true; 882#L313-1 assume !false; 861#L314 assume test_~splverifierCounter~0 < 4; 862#L315 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 748#L323 assume !(0 != test_~tmp~6); 750#L323-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 760#L333 assume !(0 != test_~tmp___0~2); 752#L333-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 889#L343 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet26;havoc test_#t~nondet26; 710#L351 assume 0 != test_~tmp___1~0; 654#L351-2 assume { :begin_inline_timeShift } true; 666#L59 assume !(0 != ~pumpRunning~0); 681#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 739#L143 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret4, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 847#L914 isMethaneAlarm_#t~ret4 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret4;havoc isMethaneAlarm_#t~ret4;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; 848#L204 processEnvironment_#t~ret2 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret2;havoc processEnvironment_#t~ret2; 703#L147 assume 0 != processEnvironment_~tmp~2;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 704#L194 assume { :end_inline_deactivatePump } true; 878#L143-1 assume { :end_inline_processEnvironment } true; 875#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 824#L914-5 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 825#L983 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 901#L983-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 669#L76 assume { :end_inline_timeShift } true; 670#L313-3 [2018-11-18 13:04:21,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:21,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 13:04:21,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:21,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:21,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:04:21,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:21,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:21,833 INFO L82 PathProgramCache]: Analyzing trace with hash 793051869, now seen corresponding path program 1 times [2018-11-18 13:04:21,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:21,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:21,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,834 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:04:21,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:04:21,860 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 13:04:21,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:04:21,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:04:21,861 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 13:04:21,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:04:21,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:04:21,862 INFO L87 Difference]: Start difference. First operand 308 states and 408 transitions. cyclomatic complexity: 102 Second operand 3 states. [2018-11-18 13:04:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:04:21,986 INFO L93 Difference]: Finished difference Result 318 states and 398 transitions. [2018-11-18 13:04:21,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:04:21,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 398 transitions. [2018-11-18 13:04:21,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2018-11-18 13:04:21,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 398 transitions. [2018-11-18 13:04:21,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2018-11-18 13:04:21,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2018-11-18 13:04:21,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 398 transitions. [2018-11-18 13:04:21,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:04:21,995 INFO L705 BuchiCegarLoop]: Abstraction has 318 states and 398 transitions. [2018-11-18 13:04:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 398 transitions. [2018-11-18 13:04:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2018-11-18 13:04:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-11-18 13:04:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 398 transitions. [2018-11-18 13:04:22,006 INFO L728 BuchiCegarLoop]: Abstraction has 318 states and 398 transitions. [2018-11-18 13:04:22,006 INFO L608 BuchiCegarLoop]: Abstraction has 318 states and 398 transitions. [2018-11-18 13:04:22,006 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 13:04:22,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 398 transitions. [2018-11-18 13:04:22,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2018-11-18 13:04:22,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:04:22,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:04:22,008 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:04:22,009 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 13:04:22,009 INFO L794 eck$LassoCheckResult]: Stem: 1461#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(30);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(9);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(21);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(30);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(9);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(21);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1290#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1291#L395 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1322#L388 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1501#L403 main_#t~ret63 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 1502#L856 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1480#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1481#L313-3 [2018-11-18 13:04:22,009 INFO L796 eck$LassoCheckResult]: Loop: 1481#L313-3 assume true; 1557#L313-1 assume !false; 1556#L314 assume test_~splverifierCounter~0 < 4; 1555#L315 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 1553#L323 assume !(0 != test_~tmp~6); 1551#L323-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 1549#L333 assume !(0 != test_~tmp___0~2); 1538#L333-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1476#L343 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1282#L296 assume { :end_inline_startSystem } true; 1283#L351-2 assume { :begin_inline_timeShift } true; 1295#L59 assume !(0 != ~pumpRunning~0); 1311#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1354#L143 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1457#L117-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1484#L91-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1478#L954-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1479#L959-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 1373#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1369#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1330#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1331#L95-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1491#L83-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1530#L91-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1565#L117-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1504#L143-1 assume { :end_inline_processEnvironment } true; 1564#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1563#L914-5 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 1561#L983 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1559#L983-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1558#L76 assume { :end_inline_timeShift } true; 1481#L313-3 [2018-11-18 13:04:22,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:22,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 13:04:22,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:22,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:22,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:04:22,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:22,053 INFO L82 PathProgramCache]: Analyzing trace with hash 159766058, now seen corresponding path program 1 times [2018-11-18 13:04:22,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:22,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:22,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,054 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:04:22,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:04:22,068 INFO L82 PathProgramCache]: Analyzing trace with hash -412219418, now seen corresponding path program 1 times [2018-11-18 13:04:22,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:04:22,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:04:22,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:04:22,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:04:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:04:22,267 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-18 13:05:35,230 WARN L180 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 13:06:12,986 WARN L180 SmtUtils]: Spent 37.76 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 13:06:13,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 01:06:13 BoogieIcfgContainer [2018-11-18 13:06:13,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 13:06:13,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:06:13,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:06:13,059 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:06:13,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:04:21" (3/4) ... [2018-11-18 13:06:13,062 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 13:06:13,103 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee777ef2-6126-4a26-9857-fac66fcad4ce/bin-2019/uautomizer/witness.graphml [2018-11-18 13:06:13,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:06:13,104 INFO L168 Benchmark]: Toolchain (without parser) took 113131.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 956.6 MB in the beginning and 872.8 MB in the end (delta: 83.7 MB). Peak memory consumption was 198.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,104 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:06:13,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,105 INFO L168 Benchmark]: Boogie Preprocessor took 46.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,105 INFO L168 Benchmark]: RCFGBuilder took 877.40 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,106 INFO L168 Benchmark]: BuchiAutomizer took 111710.07 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -24.1 MB). Free memory was 1.0 GB in the beginning and 878.2 MB in the end (delta: 138.5 MB). Peak memory consumption was 155.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,106 INFO L168 Benchmark]: Witness Printer took 44.69 ms. Allocated memory is still 1.1 GB. Free memory was 878.2 MB in the beginning and 872.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:06:13,108 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 877.40 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 111710.07 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -24.1 MB). Free memory was 1.0 GB in the beginning and 878.2 MB in the end (delta: 138.5 MB). Peak memory consumption was 155.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.69 ms. Allocated memory is still 1.1 GB. Free memory was 878.2 MB in the beginning and 872.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 111.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 111.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 318 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 710 SDtfs, 639 SDslu, 128 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 313]: 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, "libacc.c"=0, "Off"=38, "i > 0 && i <= this->argsCount"=23, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=31, "OK"=11, "__utac__get_this_argtype"=0, retValue_acc=0, "libacc.c"=22, methaneLevelCritical=0, "On"=39, tmp___0=0, "Env(Water:%i"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79487284=0, "CRIT"=0, retValue_acc=0, tmp=0, ",Meth:"=0, tmp___1=0, "On"=0, "Pump(System:"=0, tmp=0, "\n"=33, cleanupTimeShifts=4, tmp=0, tmp___0=0, retValue_acc=0, "libacc.c"=26, "On"=36, tmp=1, NULL=0, systemActive=1, waterLevel=1, "CRIT"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21ca9256=0, "On"=0, "i > 0 && i <= this->argsCount"=19, ",Pump:"=0, "i > 0 && i <= this->argsCount"=0, ",Pump:"=37, \result=0, "Off"=0, "libacc.c"=29, "libacc.c"=0, "__utac__get_this_argtype"=17, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, "libacc.c"=0, \result=1, ") "=34, head=0, pumpRunning=0, "i > 0 && i <= this->argsCount"=27, "__utac__get_this_argtype"=20, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e618796=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eee55e9=0, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@634401db=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@567277d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a20bbcd=0, "__utac__get_this_arg"=0, ") "=0, retValue_acc=1, \result=1, "__utac__get_this_arg"=28, ",Meth:"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39130ac2=0, "OK"=0, tmp=1, ")"=0, retValue_acc=1, tmp___2=40, tmp___0=0, splverifierCounter=0, "libacc.c"=0, \result=0, ")"=12, "Pump(System:"=8, "libacc.c"=18, tmp=0, head=0, tmp=0, "\n"=0, "Off"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@609371c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3b1c0f=0, "__utac__get_this_arg"=0, "Env(Water:%i"=16, "__utac__get_this_arg"=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27c09a33=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 313]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L222] FCALL "Pump(System:" [L226] FCALL "On" [L230] FCALL "Off" [L234] FCALL ",Pump:" [L238] FCALL "On" [L242] FCALL "Off" [L246] FCALL ") " [L248] FCALL "\n" [L705] FCALL "i > 0 && i <= this->argsCount" [L705] FCALL "libacc.c" [L706] FCALL "__utac__get_this_arg" [L712] FCALL "i > 0 && i <= this->argsCount" [L712] FCALL "libacc.c" [L713] FCALL "__utac__get_this_arg" [L751] FCALL "i > 0 && i <= this->argsCount" [L751] FCALL "libacc.c" [L752] FCALL "__utac__get_this_argtype" [L758] FCALL "i > 0 && i <= this->argsCount" [L758] FCALL "libacc.c" [L759] FCALL "__utac__get_this_argtype" [L923] FCALL "Env(Water:%i" [L924] FCALL ",Meth:" [L928] FCALL "CRIT" [L932] FCALL "OK" [L936] FCALL ")" [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L774] int cleanupTimeShifts = 4; [L871] int waterLevel = 1; [L872] int methaneLevelCritical = 0; [L577] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L399] int retValue_acc ; [L402] retValue_acc = 1 [L403] RET return (retValue_acc); [L854] EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L841] CALL test() [L304] int splverifierCounter ; [L305] int tmp ; [L306] int tmp___0 ; [L307] int tmp___1 ; [L308] int tmp___2 ; [L311] splverifierCounter = 0 Loop: [L313] COND TRUE 1 [L315] COND TRUE splverifierCounter < 4 [L321] tmp = __VERIFIER_nondet_int() [L323] COND FALSE !(\read(tmp)) [L331] tmp___0 = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp___0)) [L341] tmp___2 = __VERIFIER_nondet_int() [L343] COND TRUE \read(tmp___2) [L345] CALL startSystem() [L295] RET systemActive = 1 [L345] startSystem() [L358] CALL timeShift() [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L68] CALL processEnvironment() [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L158] CALL processEnvironment__wrappee__methaneQuery() [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L132] CALL processEnvironment__wrappee__highWaterSensor() [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L93] CALL, EXPR isHighWaterLevel() [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L260] CALL, EXPR isHighWaterSensorDry() [L951] int retValue_acc ; [L954] COND TRUE waterLevel < 2 [L955] retValue_acc = 1 [L956] RET return (retValue_acc); [L260] EXPR isHighWaterSensorDry() [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] RET return (retValue_acc); [L93] EXPR isHighWaterLevel() [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L101] RET, FCALL processEnvironment__wrappee__base() [L132] RET processEnvironment__wrappee__highWaterSensor() [L158] RET processEnvironment__wrappee__methaneQuery() [L68] processEnvironment() [L74] CALL __utac_acc__Specification1_spec__1() [L976] int tmp ; [L977] int tmp___0 ; [L981] CALL, EXPR isMethaneLevelCritical() [L910] int retValue_acc ; [L913] retValue_acc = methaneLevelCritical [L914] RET return (retValue_acc); [L981] EXPR isMethaneLevelCritical() [L981] tmp = isMethaneLevelCritical() [L983] COND FALSE, RET !(\read(tmp)) [L74] RET __utac_acc__Specification1_spec__1() [L358] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...