./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37_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_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/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 3f8c4eddf293b722c8b0f77d2921f647762d8744 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:34:50,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:50,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:50,443 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:50,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:50,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:50,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:50,446 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:50,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:50,447 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:50,448 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:50,448 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:50,449 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:50,450 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:50,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:50,451 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:50,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:50,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:50,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:50,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:50,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:50,457 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:50,459 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:50,459 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:50,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:50,460 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:50,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:50,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:50,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:50,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:50,463 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:50,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:50,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:50,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:50,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:50,466 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:50,466 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:34:50,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:50,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:50,482 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:50,482 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:50,482 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:50,482 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:34:50,482 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:34:50,482 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:34:50,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:34:50,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:50,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:50,485 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:34:50,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:50,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:34:50,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:50,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:50,485 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:34:50,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:50,486 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:50,486 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:34:50,487 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:34:50,487 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/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 -> 3f8c4eddf293b722c8b0f77d2921f647762d8744 [2018-11-18 08:34:50,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:50,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:50,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:50,521 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:50,521 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:50,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product37_true-unreach-call_false-termination.cil.c [2018-11-18 08:34:50,557 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/data/5de5a5531/0ec44ce279b14560950c097c25b9274e/FLAG8e6f809d8 [2018-11-18 08:34:50,988 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:50,988 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/sv-benchmarks/c/product-lines/minepump_spec2_product37_true-unreach-call_false-termination.cil.c [2018-11-18 08:34:50,995 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/data/5de5a5531/0ec44ce279b14560950c097c25b9274e/FLAG8e6f809d8 [2018-11-18 08:34:51,006 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/data/5de5a5531/0ec44ce279b14560950c097c25b9274e [2018-11-18 08:34:51,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:51,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:34:51,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:51,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:51,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:51,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae989df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51, skipping insertion in model container [2018-11-18 08:34:51,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:51,046 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:51,231 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:51,240 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:51,338 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:51,360 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:51,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51 WrapperNode [2018-11-18 08:34:51,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:51,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:51,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:34:51,361 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:34:51,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:51,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:51,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:51,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:51,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... [2018-11-18 08:34:51,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:51,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:51,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:51,444 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:51,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/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 08:34:51,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:34:51,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:51,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:52,047 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:52,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:52 BoogieIcfgContainer [2018-11-18 08:34:52,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:52,049 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:34:52,049 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:34:52,051 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:34:52,052 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:52,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:51" (1/3) ... [2018-11-18 08:34:52,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bfcc303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:52, skipping insertion in model container [2018-11-18 08:34:52,053 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:52,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:51" (2/3) ... [2018-11-18 08:34:52,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bfcc303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:52, skipping insertion in model container [2018-11-18 08:34:52,053 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:52,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:52" (3/3) ... [2018-11-18 08:34:52,055 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product37_true-unreach-call_false-termination.cil.c [2018-11-18 08:34:52,091 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:52,091 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:34:52,091 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:34:52,091 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:34:52,091 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:52,091 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:52,092 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:34:52,092 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:52,092 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:34:52,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2018-11-18 08:34:52,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2018-11-18 08:34:52,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:52,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:52,136 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,136 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,136 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:34:52,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2018-11-18 08:34:52,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2018-11-18 08:34:52,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:52,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:52,143 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,143 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,147 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 77];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 101];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 116];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 104];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 67];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 82];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 73];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 84];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 75];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 96#L928true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4#L921true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 101#L936true main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 103#L892true assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 66#L865true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 80#L303true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L241-3true [2018-11-18 08:34:52,148 INFO L796 eck$LassoCheckResult]: Loop: 21#L241-3true assume true; 5#L241-1true assume !false; 118#L242true assume test_~splverifierCounter~0 < 4; 53#L243true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 64#L251true assume !(0 != test_~tmp~3); 79#L251-2true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 135#L261true assume !(0 != test_~tmp___0~1); 152#L261-2true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 23#L271true assume 0 != test_~tmp___2~0; 156#L277-2true assume { :begin_inline_timeShift } true; 163#L57true assume !(0 != ~pumpRunning~0); 161#L57-2true assume !(0 != ~systemActive~0); 72#L64-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24, __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 107#L380-1true __utac_acc__Specification2_spec__2_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret24;havoc __utac_acc__Specification2_spec__2_#t~ret24; 111#L314true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 82#L314-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 148#L74true assume { :end_inline_timeShift } true; 21#L241-3true [2018-11-18 08:34:52,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,153 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 08:34:52,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:52,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash 421726907, now seen corresponding path program 1 times [2018-11-18 08:34:52,325 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:52,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,340 INFO L82 PathProgramCache]: Analyzing trace with hash -314214670, now seen corresponding path program 1 times [2018-11-18 08:34:52,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:52,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:52,473 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 08:34:52,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:52,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:34:52,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:34:52,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:34:52,569 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 6 states. [2018-11-18 08:34:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:52,704 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2018-11-18 08:34:52,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 08:34:52,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 208 transitions. [2018-11-18 08:34:52,709 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2018-11-18 08:34:52,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 149 states and 198 transitions. [2018-11-18 08:34:52,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2018-11-18 08:34:52,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2018-11-18 08:34:52,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 198 transitions. [2018-11-18 08:34:52,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:52,717 INFO L705 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2018-11-18 08:34:52,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 198 transitions. [2018-11-18 08:34:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-18 08:34:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 08:34:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 198 transitions. [2018-11-18 08:34:52,743 INFO L728 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2018-11-18 08:34:52,743 INFO L608 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2018-11-18 08:34:52,743 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:34:52,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 198 transitions. [2018-11-18 08:34:52,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2018-11-18 08:34:52,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:52,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:52,746 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,746 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,746 INFO L794 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 77];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 101];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 116];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 104];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 67];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 82];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 73];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 84];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 75];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 365#L928 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 341#L921 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 342#L936 main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 461#L892 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 425#L865 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 426#L303 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 374#L241-3 [2018-11-18 08:34:52,746 INFO L796 eck$LassoCheckResult]: Loop: 374#L241-3 assume true; 343#L241-1 assume !false; 344#L242 assume test_~splverifierCounter~0 < 4; 411#L243 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 412#L251 assume !(0 != test_~tmp~3); 424#L251-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 439#L261 assume !(0 != test_~tmp___0~1); 405#L261-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 382#L271 assume 0 != test_~tmp___2~0; 370#L277-2 assume { :begin_inline_timeShift } true; 484#L57 assume !(0 != ~pumpRunning~0); 360#L57-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 481#L115 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; 420#L89-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 401#L81-3 assume { :end_inline_processEnvironment__wrappee__base } true; 379#L89-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 419#L115-1 assume { :end_inline_processEnvironment } true; 428#L64-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24, __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 429#L380-1 __utac_acc__Specification2_spec__2_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret24;havoc __utac_acc__Specification2_spec__2_#t~ret24; 464#L314 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 367#L314-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 440#L74 assume { :end_inline_timeShift } true; 374#L241-3 [2018-11-18 08:34:52,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,747 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 08:34:52,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:52,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,793 INFO L82 PathProgramCache]: Analyzing trace with hash 95065947, now seen corresponding path program 1 times [2018-11-18 08:34:52,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,794 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:52,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:52,810 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 08:34:52,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:52,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:52,811 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:52,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:52,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:52,812 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-18 08:34:52,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:52,876 INFO L93 Difference]: Finished difference Result 209 states and 268 transitions. [2018-11-18 08:34:52,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:52,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 268 transitions. [2018-11-18 08:34:52,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2018-11-18 08:34:52,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 209 states and 268 transitions. [2018-11-18 08:34:52,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 209 [2018-11-18 08:34:52,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 209 [2018-11-18 08:34:52,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 209 states and 268 transitions. [2018-11-18 08:34:52,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:52,883 INFO L705 BuchiCegarLoop]: Abstraction has 209 states and 268 transitions. [2018-11-18 08:34:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states and 268 transitions. [2018-11-18 08:34:52,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2018-11-18 08:34:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-11-18 08:34:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 268 transitions. [2018-11-18 08:34:52,891 INFO L728 BuchiCegarLoop]: Abstraction has 209 states and 268 transitions. [2018-11-18 08:34:52,891 INFO L608 BuchiCegarLoop]: Abstraction has 209 states and 268 transitions. [2018-11-18 08:34:52,891 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:34:52,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 209 states and 268 transitions. [2018-11-18 08:34:52,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2018-11-18 08:34:52,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:52,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:52,894 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,894 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:52,895 INFO L794 eck$LassoCheckResult]: Stem: 844#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 77];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 101];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 116];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 104];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 67];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 82];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 73];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 84];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 75];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 728#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 729#L928 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 705#L921 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 706#L936 main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 831#L892 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 791#L865 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 792#L303 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 738#L241-3 [2018-11-18 08:34:52,895 INFO L796 eck$LassoCheckResult]: Loop: 738#L241-3 assume true; 709#L241-1 assume !false; 710#L242 assume test_~splverifierCounter~0 < 4; 777#L243 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 778#L251 assume !(0 != test_~tmp~3); 790#L251-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 809#L261 assume !(0 != test_~tmp___0~1); 771#L261-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 742#L271 assume 0 != test_~tmp___2~0; 731#L277-2 assume { :begin_inline_timeShift } true; 853#L57 assume !(0 != ~pumpRunning~0); 857#L57-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 850#L115 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; 786#L89-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 707#L420-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 708#L425-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 760#L217-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 841#L217-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 828#L223-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 829#L93-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 743#L81-2 assume { :end_inline_processEnvironment__wrappee__base } true; 744#L89-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 785#L115-1 assume { :end_inline_processEnvironment } true; 796#L64-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24, __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 797#L380-1 __utac_acc__Specification2_spec__2_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret24;havoc __utac_acc__Specification2_spec__2_#t~ret24; 834#L314 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 733#L314-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 811#L74 assume { :end_inline_timeShift } true; 738#L241-3 [2018-11-18 08:34:52,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 08:34:52,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:52,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:52,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:52,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1958349935, now seen corresponding path program 1 times [2018-11-18 08:34:52,934 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:52,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:52,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,936 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:52,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:52,969 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 08:34:52,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:52,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:34:52,970 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:52,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:34:52,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:34:52,970 INFO L87 Difference]: Start difference. First operand 209 states and 268 transitions. cyclomatic complexity: 61 Second operand 4 states. [2018-11-18 08:34:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:53,090 INFO L93 Difference]: Finished difference Result 404 states and 510 transitions. [2018-11-18 08:34:53,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:34:53,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 510 transitions. [2018-11-18 08:34:53,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 288 [2018-11-18 08:34:53,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 404 states and 510 transitions. [2018-11-18 08:34:53,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 404 [2018-11-18 08:34:53,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 404 [2018-11-18 08:34:53,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 404 states and 510 transitions. [2018-11-18 08:34:53,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:53,098 INFO L705 BuchiCegarLoop]: Abstraction has 404 states and 510 transitions. [2018-11-18 08:34:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 510 transitions. [2018-11-18 08:34:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 221. [2018-11-18 08:34:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-18 08:34:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 280 transitions. [2018-11-18 08:34:53,107 INFO L728 BuchiCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-11-18 08:34:53,107 INFO L608 BuchiCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-11-18 08:34:53,107 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 08:34:53,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 280 transitions. [2018-11-18 08:34:53,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2018-11-18 08:34:53,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:53,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:53,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:53,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:53,110 INFO L794 eck$LassoCheckResult]: Stem: 1477#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(13);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 77];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 101];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 116];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 104];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 67];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 82];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 73];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 84];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 75];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(21);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(25);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1357#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 1358#L928 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1329#L921 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1330#L936 main_#t~ret71 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 1462#L892 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 1420#L865 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1421#L303 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1438#L241-3 [2018-11-18 08:34:53,110 INFO L796 eck$LassoCheckResult]: Loop: 1438#L241-3 assume true; 1510#L241-1 assume !false; 1507#L242 assume test_~splverifierCounter~0 < 4; 1406#L243 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1407#L251 assume !(0 != test_~tmp~3); 1419#L251-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1437#L261 assume !(0 != test_~tmp___0~1); 1400#L261-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1373#L271 assume 0 != test_~tmp___2~0; 1363#L277-2 assume { :begin_inline_timeShift } true; 1489#L57 assume !(0 != ~pumpRunning~0); 1494#L57-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1484#L115 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; 1415#L89-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1333#L420-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1334#L425-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1486#L217-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1473#L217-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1460#L223-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1461#L93-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1374#L81-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1375#L89-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1414#L115-1 assume { :end_inline_processEnvironment } true; 1529#L64-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24, __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1528#L380-1 __utac_acc__Specification2_spec__2_#t~ret24 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret24;havoc __utac_acc__Specification2_spec__2_#t~ret24; 1519#L314 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 1515#L314-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1512#L74 assume { :end_inline_timeShift } true; 1438#L241-3 [2018-11-18 08:34:53,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:53,110 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 08:34:53,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:53,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:53,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:53,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:53,144 INFO L82 PathProgramCache]: Analyzing trace with hash 2078451923, now seen corresponding path program 1 times [2018-11-18 08:34:53,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:53,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:53,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,145 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:53,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1217444804, now seen corresponding path program 1 times [2018-11-18 08:34:53,154 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:53,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:53,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:53,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:53,308 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-11-18 08:35:54,438 WARN L180 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 08:36:26,088 WARN L180 SmtUtils]: Spent 31.64 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 08:36:26,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:36:26 BoogieIcfgContainer [2018-11-18 08:36:26,162 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:36:26,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:36:26,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:36:26,162 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:36:26,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:52" (3/4) ... [2018-11-18 08:36:26,164 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:36:26,205 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b55686c4-855f-47c0-a549-97ada0902088/bin-2019/uautomizer/witness.graphml [2018-11-18 08:36:26,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:36:26,206 INFO L168 Benchmark]: Toolchain (without parser) took 95197.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -224.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:36:26,206 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:36:26,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,207 INFO L168 Benchmark]: Boogie Preprocessor took 32.78 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,207 INFO L168 Benchmark]: RCFGBuilder took 604.65 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: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,207 INFO L168 Benchmark]: BuchiAutomizer took 94113.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -106.8 MB). Peak memory consumption was 319.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,208 INFO L168 Benchmark]: Witness Printer took 43.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:36:26,209 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.78 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 604.65 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: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 94113.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -106.8 MB). Peak memory consumption was 319.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 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 6 locations. The remainder module has 221 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 94.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 93.5s. 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, 183 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 221 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 627 SDtfs, 1067 SDslu, 434 SDs, 0 SdLazy, 96 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 241]: 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, ",Pump:"=37, "libacc.c"=23, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=17, retValue_acc=0, "libacc.c"=16, "__utac__get_this_arg"=22, methaneLevelCritical=0, "Off"=38, retValue_acc=1, tmp___0=0, tmp=0, "__utac__get_this_argtype"=0, "__utac__get_this_argtype"=0, "OK"=27, retValue_acc=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=8, "libacc.c"=0, tmp___1=0, ",Meth:"=29, "Pump(System:"=0, "Off"=0, "On"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c0c2e2a=0, cleanupTimeShifts=4, "CRIT"=28, "Off"=35, "Env(Water:%i"=0, ",Meth:"=0, NULL=0, systemActive=1, waterLevel=1, "Off"=0, "libacc.c"=19, "On"=0, retValue_acc=0, "On"=36, \result=0, ",Pump:"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "Pump(System:"=39, \result=1, "\n"=33, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4678c=0, "i > 0 && i <= this->argsCount"=20, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=14, ") "=0, ")"=0, "OK"=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13369ab5=0, "\n"=0, ")"=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6335c48c=40, \result=1, "libacc.c"=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32679207=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c61a8e=0, tmp=1, tmp___2=40, tmp___0=0, tmp___0=0, splverifierCounter=0, "__utac__get_this_arg"=0, methAndRunningLastTime=0, \result=0, "On"=11, "__utac__get_this_arg"=18, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e7bd0bf=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3013e221=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17c296cd=0, "Env(Water:%i"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eeac384=0, ") "=34, "CRIT"=0, tmp=0, "i > 0 && i <= this->argsCount"=24, "__utac__get_this_argtype"=15} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 241]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L177] FCALL "Pump(System:" [L181] FCALL "On" [L185] FCALL "Off" [L189] FCALL ",Pump:" [L193] FCALL "On" [L197] FCALL "Off" [L201] FCALL ") " [L203] FCALL "\n" [L389] FCALL "Env(Water:%i" [L390] FCALL ",Meth:" [L394] FCALL "CRIT" [L398] FCALL "OK" [L402] FCALL ")" [L737] FCALL "i > 0 && i <= this->argsCount" [L737] FCALL "libacc.c" [L738] FCALL "__utac__get_this_arg" [L744] FCALL "i > 0 && i <= this->argsCount" [L744] FCALL "libacc.c" [L745] FCALL "__utac__get_this_arg" [L783] FCALL "i > 0 && i <= this->argsCount" [L783] FCALL "libacc.c" [L784] FCALL "__utac__get_this_argtype" [L790] FCALL "i > 0 && i <= this->argsCount" [L790] FCALL "libacc.c" [L791] FCALL "__utac__get_this_argtype" [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L297] int methAndRunningLastTime ; [L337] int waterLevel = 1; [L338] int methaneLevelCritical = 0; [L806] int cleanupTimeShifts = 4; [L609] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L883] int retValue_acc ; [L884] int tmp ; [L888] FCALL select_helpers() [L889] FCALL select_features() [L890] CALL, EXPR valid_product() [L932] int retValue_acc ; [L935] retValue_acc = 1 [L936] RET return (retValue_acc); [L890] EXPR valid_product() [L890] tmp = valid_product() [L892] COND TRUE \read(tmp) [L894] FCALL setup() [L895] CALL runTest() [L873] CALL __utac_acc__Specification2_spec__1() [L302] RET methAndRunningLastTime = 0 [L873] __utac_acc__Specification2_spec__1() [L874] CALL test() [L232] int splverifierCounter ; [L233] int tmp ; [L234] int tmp___0 ; [L235] int tmp___1 ; [L236] int tmp___2 ; [L239] splverifierCounter = 0 Loop: [L241] COND TRUE 1 [L243] COND TRUE splverifierCounter < 4 [L249] tmp = __VERIFIER_nondet_int() [L251] COND FALSE !(\read(tmp)) [L259] tmp___0 = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp___0)) [L269] tmp___2 = __VERIFIER_nondet_int() [L271] COND TRUE \read(tmp___2) [L284] CALL timeShift() [L57] COND FALSE !(\read(pumpRunning)) [L64] COND TRUE \read(systemActive) [L66] CALL processEnvironment() [L112] int tmp ; [L115] COND FALSE !(\read(pumpRunning)) [L130] CALL processEnvironment__wrappee__highWaterSensor() [L86] int tmp ; [L89] COND TRUE ! pumpRunning [L91] CALL, EXPR isHighWaterLevel() [L209] int retValue_acc ; [L210] int tmp ; [L211] int tmp___0 ; [L215] CALL, EXPR isHighWaterSensorDry() [L417] int retValue_acc ; [L420] COND TRUE waterLevel < 2 [L421] retValue_acc = 1 [L422] RET return (retValue_acc); [L215] EXPR isHighWaterSensorDry() [L215] tmp = isHighWaterSensorDry() [L217] COND TRUE \read(tmp) [L218] tmp___0 = 0 [L222] retValue_acc = tmp___0 [L223] RET return (retValue_acc); [L91] EXPR isHighWaterLevel() [L91] tmp = isHighWaterLevel() [L93] COND FALSE !(\read(tmp)) [L99] RET, FCALL processEnvironment__wrappee__base() [L130] RET processEnvironment__wrappee__highWaterSensor() [L66] processEnvironment() [L72] CALL __utac_acc__Specification2_spec__2() [L307] int tmp ; [L308] int tmp___0 ; [L312] CALL, EXPR isMethaneLevelCritical() [L376] int retValue_acc ; [L379] retValue_acc = methaneLevelCritical [L380] RET return (retValue_acc); [L312] EXPR isMethaneLevelCritical() [L312] tmp = isMethaneLevelCritical() [L314] COND FALSE !(\read(tmp)) [L330] RET methAndRunningLastTime = 0 [L72] RET __utac_acc__Specification2_spec__2() [L284] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...