./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 406c0cc89d56bc86617076fb4c755244f0ec13e7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-91b1670 [2018-11-28 23:58:27,474 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:58:27,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:58:27,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:58:27,491 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:58:27,492 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:58:27,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:58:27,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:58:27,502 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:58:27,505 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:58:27,507 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:58:27,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:58:27,509 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:58:27,510 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:58:27,511 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:58:27,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:58:27,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:58:27,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:58:27,530 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:58:27,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:58:27,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:58:27,538 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:58:27,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:58:27,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:58:27,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:58:27,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:58:27,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:58:27,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:58:27,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:58:27,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:58:27,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:58:27,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:58:27,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:58:27,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:58:27,555 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:58:27,555 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:58:27,556 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:58:27,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:58:27,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:58:27,590 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:58:27,590 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:58:27,590 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:58:27,590 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:58:27,591 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:58:27,591 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:58:27,591 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:58:27,592 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:58:27,592 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:58:27,592 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:58:27,592 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:58:27,592 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:58:27,593 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:58:27,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:58:27,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:58:27,595 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:58:27,595 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:58:27,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:58:27,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:58:27,596 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:58:27,596 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:58:27,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:58:27,597 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:58:27,597 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:58:27,598 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:58:27,598 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 406c0cc89d56bc86617076fb4c755244f0ec13e7 [2018-11-28 23:58:27,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:58:27,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:58:27,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:58:27,675 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:58:27,676 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:58:27,676 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:27,739 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13215763/2b1f48608a644d0cb23913e9a49777c2/FLAG9858808ba [2018-11-28 23:58:28,271 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:58:28,271 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:28,287 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13215763/2b1f48608a644d0cb23913e9a49777c2/FLAG9858808ba [2018-11-28 23:58:28,554 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13215763/2b1f48608a644d0cb23913e9a49777c2 [2018-11-28 23:58:28,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:58:28,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:58:28,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:58:28,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:58:28,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:58:28,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:28" (1/1) ... [2018-11-28 23:58:28,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4874b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:28, skipping insertion in model container [2018-11-28 23:58:28,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:28" (1/1) ... [2018-11-28 23:58:28,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:58:28,649 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:58:29,019 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:58:29,054 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:58:29,177 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:58:29,221 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:58:29,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29 WrapperNode [2018-11-28 23:58:29,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:58:29,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:58:29,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:58:29,224 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:58:29,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:58:29,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:58:29,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:58:29,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:58:29,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... [2018-11-28 23:58:29,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:58:29,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:58:29,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:58:29,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:58:29,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:58:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:58:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:58:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:58:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:58:30,712 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:58:30,712 INFO L280 CfgBuilder]: Removed 168 assue(true) statements. [2018-11-28 23:58:30,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:30 BoogieIcfgContainer [2018-11-28 23:58:30,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:58:30,714 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:58:30,714 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:58:30,717 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:58:30,718 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:30,718 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:58:28" (1/3) ... [2018-11-28 23:58:30,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@181d60d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:58:30, skipping insertion in model container [2018-11-28 23:58:30,720 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:30,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:29" (2/3) ... [2018-11-28 23:58:30,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@181d60d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:58:30, skipping insertion in model container [2018-11-28 23:58:30,720 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:30,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:30" (3/3) ... [2018-11-28 23:58:30,722 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:30,781 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:58:30,782 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:58:30,782 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:58:30,783 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:58:30,783 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:58:30,783 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:58:30,783 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:58:30,784 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:58:30,784 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:58:30,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states. [2018-11-28 23:58:30,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2018-11-28 23:58:30,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:30,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:30,843 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:30,843 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:30,843 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:58:30,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states. [2018-11-28 23:58:30,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2018-11-28 23:58:30,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:30,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:30,853 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:30,853 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:30,860 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 87#L883true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 119#L891true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 29#L978true assume 0 != main_~tmp~9; 68#L955true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L59-1true [2018-11-28 23:58:30,860 INFO L796 eck$LassoCheckResult]: Loop: 13#L59-1true assume !false; 24#L791true assume test_~splverifierCounter~0 < 4; 100#L792true test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 6#L800true assume !(0 != test_~tmp~8); 9#L800-1true test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 37#L810true assume !(0 != test_~tmp___0~3); 27#L810-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 61#L820true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 91#L828-1true assume !(0 != ~pumpRunning~0); 4#L566true assume !(0 != ~systemActive~0); 43#L573true havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 48#L127true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 40#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 13#L59-1true [2018-11-28 23:58:30,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:30,867 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 23:58:30,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:30,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:30,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:30,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:30,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:31,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:31,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1670232129, now seen corresponding path program 1 times [2018-11-28 23:58:31,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:31,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:31,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:31,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:58:31,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:31,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:31,404 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:58:31,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:58:31,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:58:31,427 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 3 states. [2018-11-28 23:58:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:31,670 INFO L93 Difference]: Finished difference Result 238 states and 348 transitions. [2018-11-28 23:58:31,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:58:31,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 348 transitions. [2018-11-28 23:58:31,687 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 154 [2018-11-28 23:58:31,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 224 states and 333 transitions. [2018-11-28 23:58:31,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2018-11-28 23:58:31,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2018-11-28 23:58:31,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 333 transitions. [2018-11-28 23:58:31,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:31,707 INFO L705 BuchiCegarLoop]: Abstraction has 224 states and 333 transitions. [2018-11-28 23:58:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 333 transitions. [2018-11-28 23:58:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2018-11-28 23:58:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-28 23:58:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 330 transitions. [2018-11-28 23:58:31,757 INFO L728 BuchiCegarLoop]: Abstraction has 222 states and 330 transitions. [2018-11-28 23:58:31,757 INFO L608 BuchiCegarLoop]: Abstraction has 222 states and 330 transitions. [2018-11-28 23:58:31,758 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:58:31,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 330 transitions. [2018-11-28 23:58:31,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2018-11-28 23:58:31,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:31,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:31,763 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:31,764 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:31,764 INFO L794 eck$LassoCheckResult]: Stem: 462#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 384#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 385#L883 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 488#L891 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 418#L978 assume 0 != main_~tmp~9; 419#L955 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 467#L59-1 [2018-11-28 23:58:31,764 INFO L796 eck$LassoCheckResult]: Loop: 467#L59-1 assume !false; 544#L791 assume test_~splverifierCounter~0 < 4; 545#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 590#L800 assume !(0 != test_~tmp~8); 588#L800-1 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 587#L810 assume !(0 != test_~tmp___0~3); 585#L810-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 584#L820 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 460#L828-1 assume !(0 != ~pumpRunning~0); 371#L566 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 372#L624 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 509#L598-1 assume !(0 == ~pumpRunning~0); 556#L573 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 555#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 546#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 467#L59-1 [2018-11-28 23:58:31,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:31,765 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 23:58:31,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:31,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:31,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:31,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:31,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:31,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1415980259, now seen corresponding path program 1 times [2018-11-28 23:58:31,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:31,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:31,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,865 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:31,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:58:31,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:31,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:31,937 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:58:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:58:31,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:58:31,940 INFO L87 Difference]: Start difference. First operand 222 states and 330 transitions. cyclomatic complexity: 111 Second operand 3 states. [2018-11-28 23:58:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:32,358 INFO L93 Difference]: Finished difference Result 317 states and 448 transitions. [2018-11-28 23:58:32,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:58:32,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 448 transitions. [2018-11-28 23:58:32,372 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2018-11-28 23:58:32,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 448 transitions. [2018-11-28 23:58:32,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2018-11-28 23:58:32,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2018-11-28 23:58:32,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 448 transitions. [2018-11-28 23:58:32,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:32,394 INFO L705 BuchiCegarLoop]: Abstraction has 317 states and 448 transitions. [2018-11-28 23:58:32,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 448 transitions. [2018-11-28 23:58:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-11-28 23:58:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-11-28 23:58:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2018-11-28 23:58:32,437 INFO L728 BuchiCegarLoop]: Abstraction has 317 states and 448 transitions. [2018-11-28 23:58:32,437 INFO L608 BuchiCegarLoop]: Abstraction has 317 states and 448 transitions. [2018-11-28 23:58:32,438 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:58:32,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 448 transitions. [2018-11-28 23:58:32,442 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2018-11-28 23:58:32,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:32,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:32,446 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:32,446 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] [2018-11-28 23:58:32,447 INFO L794 eck$LassoCheckResult]: Stem: 1009#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 928#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 929#L883 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1036#L891 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 963#L978 assume 0 != main_~tmp~9; 964#L955 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 932#L59-1 [2018-11-28 23:58:32,449 INFO L796 eck$LassoCheckResult]: Loop: 932#L59-1 assume !false; 933#L791 assume test_~splverifierCounter~0 < 4; 953#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 920#L800 assume !(0 != test_~tmp~8); 922#L800-1 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 927#L810 assume !(0 != test_~tmp___0~3); 1120#L810-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1119#L820 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1007#L828-1 assume !(0 != ~pumpRunning~0); 916#L566 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 917#L624 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1143#L598-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1046#L167-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1047#L172-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1111#L726-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1108#L726-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1106#L732-1 processEnvironment__wrappee__highWaterSensor_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret48;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48; 1103#L602-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 987#L573 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 988#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 983#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 932#L59-1 [2018-11-28 23:58:32,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:32,449 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 23:58:32,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:32,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:32,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:32,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:32,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:32,569 INFO L82 PathProgramCache]: Analyzing trace with hash 890409545, now seen corresponding path program 1 times [2018-11-28 23:58:32,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:32,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:32,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,571 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:32,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:32,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:32,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1346480739, now seen corresponding path program 1 times [2018-11-28 23:58:32,590 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:32,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:32,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:32,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:58:32,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:32,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:33,370 WARN L180 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-28 23:58:33,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:58:33,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:58:33,450 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. cyclomatic complexity: 134 Second operand 5 states. [2018-11-28 23:58:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:34,043 INFO L93 Difference]: Finished difference Result 1101 states and 1566 transitions. [2018-11-28 23:58:34,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:58:34,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1101 states and 1566 transitions. [2018-11-28 23:58:34,058 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 834 [2018-11-28 23:58:34,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1101 states to 1101 states and 1566 transitions. [2018-11-28 23:58:34,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1101 [2018-11-28 23:58:34,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1101 [2018-11-28 23:58:34,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1101 states and 1566 transitions. [2018-11-28 23:58:34,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:34,075 INFO L705 BuchiCegarLoop]: Abstraction has 1101 states and 1566 transitions. [2018-11-28 23:58:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states and 1566 transitions. [2018-11-28 23:58:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 628. [2018-11-28 23:58:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-11-28 23:58:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 874 transitions. [2018-11-28 23:58:34,109 INFO L728 BuchiCegarLoop]: Abstraction has 628 states and 874 transitions. [2018-11-28 23:58:34,109 INFO L608 BuchiCegarLoop]: Abstraction has 628 states and 874 transitions. [2018-11-28 23:58:34,109 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:58:34,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 628 states and 874 transitions. [2018-11-28 23:58:34,115 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 446 [2018-11-28 23:58:34,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:34,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:34,116 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:34,116 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] [2018-11-28 23:58:34,118 INFO L794 eck$LassoCheckResult]: Stem: 2449#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 2364#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 2365#L883 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2472#L891 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 2401#L978 assume 0 != main_~tmp~9; 2402#L955 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2454#L59-1 [2018-11-28 23:58:34,118 INFO L796 eck$LassoCheckResult]: Loop: 2454#L59-1 assume !false; 2679#L791 assume test_~splverifierCounter~0 < 4; 2678#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 2675#L800 assume !(0 != test_~tmp~8); 2672#L800-1 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 2670#L810 assume !(0 != test_~tmp___0~3); 2667#L810-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 2663#L820 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2475#L828-1 assume !(0 != ~pumpRunning~0); 2352#L566 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2353#L624 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2409#L598-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2410#L167-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2376#L172-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 2377#L726-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 2473#L726-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2455#L732-1 processEnvironment__wrappee__highWaterSensor_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret48;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48; 2456#L602-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 2478#L573 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2428#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 2419#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2420#L159 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2490#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2454#L59-1 [2018-11-28 23:58:34,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:34,124 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-11-28 23:58:34,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:34,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:34,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:34,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:34,190 INFO L82 PathProgramCache]: Analyzing trace with hash 985089051, now seen corresponding path program 1 times [2018-11-28 23:58:34,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:34,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:34,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,192 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:34,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1182842293, now seen corresponding path program 1 times [2018-11-28 23:58:34,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:34,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:34,856 WARN L180 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-28 23:58:34,983 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-28 23:58:43,291 WARN L180 SmtUtils]: Spent 8.29 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 23:58:47,368 WARN L180 SmtUtils]: Spent 4.08 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 23:58:47,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:58:47 BoogieIcfgContainer [2018-11-28 23:58:47,436 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:58:47,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:58:47,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:58:47,437 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:58:47,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:30" (3/4) ... [2018-11-28 23:58:47,441 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:58:47,511 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:58:47,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:58:47,515 INFO L168 Benchmark]: Toolchain (without parser) took 18956.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 943.3 MB in the beginning and 1.3 GB in the end (delta: -358.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:58:47,516 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:58:47,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.81 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:47,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 916.4 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:47,521 INFO L168 Benchmark]: Boogie Preprocessor took 56.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:58:47,521 INFO L168 Benchmark]: RCFGBuilder took 1275.05 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:47,522 INFO L168 Benchmark]: BuchiAutomizer took 16722.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -244.5 MB). Peak memory consumption was 410.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:47,522 INFO L168 Benchmark]: Witness Printer took 74.62 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 23:58:47,529 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 662.81 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 157.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 916.4 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1275.05 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 16722.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -244.5 MB). Peak memory consumption was 410.6 MB. Max. memory is 11.5 GB. * Witness Printer took 74.62 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 628 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 15.0s. Construction of modules took 0.9s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 475 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 628 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 608 SDtfs, 985 SDslu, 1058 SDs, 0 SdLazy, 85 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s 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: 790]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14fa7661=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d0a730e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e62b401=0, retValue_acc=0, NULL=0, NULL=0, NULL=33, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bc5fb21=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=19, NULL=27, methaneLevelCritical=0, NULL=36, tmp___0=0, NULL=17, NULL=45, NULL=0, retValue_acc=0, tmp___1=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp___0=1, NULL=42, tmp=0, tmp=0, cleanupTimeShifts=4, NULL=24, NULL=43, NULL=28, NULL=31, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=39, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54e8966b=0, NULL=18, \result=0, NULL=0, NULL=35, NULL=0, NULL=0, NULL=29, NULL=0, NULL=0, NULL=37, \result=1, retValue_acc=1, retValue_acc=0, head=0, pumpRunning=0, \result=0, NULL=46, NULL=0, NULL=26, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@492fc0c=0, NULL=0, NULL=0, NULL=47, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@632f7bfc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17f0d863=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c946f97=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52959b34=0, tmp___0=0, tmp___2=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fe96e71=0, tmp=1, splverifierCounter=0, \result=0, NULL=38, tmp___1=0, head=0, tmp=0, tmp=1, NULL=40, NULL=0, NULL=34, NULL=20, NULL=22, NULL=23} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 Loop: [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND FALSE !(\read(tmp)) [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND TRUE \read(tmp___2) [L774] systemActive = 1 [L566] COND FALSE !(\read(pumpRunning)) [L573] COND TRUE \read(systemActive) [L621] int tmp ; [L624] COND FALSE !(\read(pumpRunning)) [L595] int tmp ; [L598] COND TRUE ! pumpRunning [L718] int retValue_acc ; [L719] int tmp ; [L720] int tmp___0 ; [L164] int retValue_acc ; [L167] COND TRUE waterLevel < 2 [L168] retValue_acc = 1 [L169] return (retValue_acc); [L724] tmp = isHighWaterSensorDry() [L726] COND TRUE \read(tmp) [L727] tmp___0 = 0 [L731] retValue_acc = tmp___0 [L732] return (retValue_acc); [L600] tmp = isHighWaterLevel() [L602] COND FALSE !(\read(tmp)) [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] tmp___0 = getWaterLevel() [L59] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...