./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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_spec5_product21_true-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 96ae2288ffb48a442cf9d3aacf0a8b0af732e156 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-2e94e6a [2019-01-01 23:50:27,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:50:27,718 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:50:27,730 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:50:27,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:50:27,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:50:27,733 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:50:27,735 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:50:27,737 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:50:27,738 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:50:27,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:50:27,739 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:50:27,740 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:50:27,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:50:27,743 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:50:27,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:50:27,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:50:27,747 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:50:27,749 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:50:27,751 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:50:27,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:50:27,754 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:50:27,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:50:27,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:50:27,757 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:50:27,758 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:50:27,759 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:50:27,760 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:50:27,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:50:27,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:50:27,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:50:27,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:50:27,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:50:27,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:50:27,766 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:50:27,766 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:50:27,767 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:50:27,784 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:50:27,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:50:27,786 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:50:27,786 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:50:27,786 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:50:27,787 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:50:27,787 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:50:27,787 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:50:27,787 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:50:27,787 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:50:27,787 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:50:27,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:50:27,788 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:50:27,788 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:50:27,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:50:27,788 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:50:27,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:50:27,790 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:50:27,790 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:50:27,791 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:50:27,791 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:50:27,791 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:50:27,791 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:50:27,791 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:50:27,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:50:27,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:50:27,793 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:50:27,793 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:50:27,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:50:27,793 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:50:27,793 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:50:27,795 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:50:27,795 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 -> 96ae2288ffb48a442cf9d3aacf0a8b0af732e156 [2019-01-01 23:50:27,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:50:27,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:50:27,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:50:27,863 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:50:27,863 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:50:27,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2019-01-01 23:50:27,931 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f729ff51/151a42a065134c92840b99b5b1f44464/FLAG06fc688af [2019-01-01 23:50:28,443 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:50:28,443 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2019-01-01 23:50:28,458 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f729ff51/151a42a065134c92840b99b5b1f44464/FLAG06fc688af [2019-01-01 23:50:28,730 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f729ff51/151a42a065134c92840b99b5b1f44464 [2019-01-01 23:50:28,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:50:28,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:50:28,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:50:28,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:50:28,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:50:28,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:50:28" (1/1) ... [2019-01-01 23:50:28,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f59dc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:28, skipping insertion in model container [2019-01-01 23:50:28,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:50:28" (1/1) ... [2019-01-01 23:50:28,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:50:28,820 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:50:29,229 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:50:29,245 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:50:29,333 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:50:29,461 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:50:29,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29 WrapperNode [2019-01-01 23:50:29,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:50:29,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:50:29,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:50:29,463 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:50:29,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:50:29,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:50:29,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:50:29,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:50:29,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (1/1) ... [2019-01-01 23:50:29,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:50:29,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:50:29,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:50:29,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:50:29,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (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 [2019-01-01 23:50:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 23:50:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 23:50:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:50:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:50:31,328 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:50:31,329 INFO L280 CfgBuilder]: Removed 170 assue(true) statements. [2019-01-01 23:50:31,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:50:31 BoogieIcfgContainer [2019-01-01 23:50:31,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:50:31,330 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:50:31,330 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:50:31,334 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:50:31,335 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:50:31,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:50:28" (1/3) ... [2019-01-01 23:50:31,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d5c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:50:31, skipping insertion in model container [2019-01-01 23:50:31,337 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:50:31,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:50:29" (2/3) ... [2019-01-01 23:50:31,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d5c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:50:31, skipping insertion in model container [2019-01-01 23:50:31,337 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:50:31,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:50:31" (3/3) ... [2019-01-01 23:50:31,339 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2019-01-01 23:50:31,401 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:50:31,402 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:50:31,402 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:50:31,403 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:50:31,403 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:50:31,403 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:50:31,403 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:50:31,403 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:50:31,404 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:50:31,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-01-01 23:50:31,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-01-01 23:50:31,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:50:31,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:50:31,464 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:31,464 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:31,464 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:50:31,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-01-01 23:50:31,473 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-01-01 23:50:31,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:50:31,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:50:31,474 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:31,475 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:31,482 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(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.allocOnStack(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.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 5#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 57#L322true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 90#L330true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 82#L132true assume 0 != main_~tmp~0; 9#L103true ~switchedOnBeforeTS~0 := 0; 15#L155true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 49#L176-1true [2019-01-01 23:50:31,482 INFO L796 eck$LassoCheckResult]: Loop: 49#L176-1true assume !false; 110#L712true assume test_~splverifierCounter~0 < 4; 46#L713true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 74#L721true assume !(0 != test_~tmp~5); 78#L721-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 6#L731true assume !(0 != test_~tmp___0~1); 7#L731-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 42#L741true assume 0 != test_~tmp___2~0; 14#L747-2true havoc __utac_acc__Specification5_spec__2_#t~ret1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 50#L889true __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 52#L165true assume !(0 != ~pumpRunning~0); 4#L778true assume !(0 != ~systemActive~0); 36#L785true havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 68#L286true __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 54#L176true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 49#L176-1true [2019-01-01 23:50:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:31,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-01-01 23:50:31,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:31,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:31,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:31,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:31,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:32,319 INFO L82 PathProgramCache]: Analyzing trace with hash 95582188, now seen corresponding path program 1 times [2019-01-01 23:50:32,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:32,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:32,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:32,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:32,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2029607398, now seen corresponding path program 1 times [2019-01-01 23:50:32,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:32,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:32,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:32,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:32,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:50:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:50:32,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:50:32,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 23:50:32,829 WARN L181 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-01-01 23:50:32,994 WARN L181 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-01-01 23:50:33,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 23:50:33,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-01 23:50:33,061 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2019-01-01 23:50:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:50:33,524 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2019-01-01 23:50:33,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 23:50:33,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 154 transitions. [2019-01-01 23:50:33,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-01-01 23:50:33,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2019-01-01 23:50:33,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2019-01-01 23:50:33,545 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2019-01-01 23:50:33,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2019-01-01 23:50:33,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:50:33,547 INFO L705 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-01-01 23:50:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2019-01-01 23:50:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-01-01 23:50:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-01-01 23:50:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2019-01-01 23:50:33,585 INFO L728 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-01-01 23:50:33,586 INFO L608 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-01-01 23:50:33,586 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:50:33,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2019-01-01 23:50:33,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-01-01 23:50:33,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:50:33,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:50:33,590 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:33,590 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:33,590 INFO L794 eck$LassoCheckResult]: Stem: 330#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(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.allocOnStack(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.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 244#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 245#L322 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 315#L330 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 333#L132 assume 0 != main_~tmp~0; 251#L103 ~switchedOnBeforeTS~0 := 0; 252#L155 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 258#L176-1 [2019-01-01 23:50:33,591 INFO L796 eck$LassoCheckResult]: Loop: 258#L176-1 assume !false; 304#L712 assume test_~splverifierCounter~0 < 4; 302#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 303#L721 assume !(0 != test_~tmp~5); 285#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 246#L731 assume !(0 != test_~tmp___0~1); 241#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 247#L741 assume 0 != test_~tmp___2~0; 259#L747-2 havoc __utac_acc__Specification5_spec__2_#t~ret1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 260#L889 __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 305#L165 assume !(0 != ~pumpRunning~0); 242#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 243#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret54, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 268#L810-1 assume !(0 != ~pumpRunning~0); 270#L785 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 294#L286 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 311#L176 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 258#L176-1 [2019-01-01 23:50:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:33,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-01-01 23:50:33,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:33,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:33,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:33,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:33,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:33,843 INFO L82 PathProgramCache]: Analyzing trace with hash -489209282, now seen corresponding path program 1 times [2019-01-01 23:50:33,843 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:33,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:33,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,844 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:50:33,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1611821640, now seen corresponding path program 1 times [2019-01-01 23:50:33,856 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:33,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:50:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:50:34,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:50:34,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:50:34,523 WARN L181 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-01-01 23:50:34,934 WARN L181 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-01-01 23:50:34,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 23:50:34,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 23:50:34,950 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-01-01 23:50:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:50:36,453 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2019-01-01 23:50:36,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 23:50:36,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2019-01-01 23:50:36,467 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-01-01 23:50:36,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2019-01-01 23:50:36,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2019-01-01 23:50:36,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2019-01-01 23:50:36,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2019-01-01 23:50:36,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:50:36,486 INFO L705 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2019-01-01 23:50:36,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2019-01-01 23:50:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2019-01-01 23:50:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-01-01 23:50:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2019-01-01 23:50:36,520 INFO L728 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-01-01 23:50:36,520 INFO L608 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-01-01 23:50:36,521 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 23:50:36,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2019-01-01 23:50:36,524 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-01-01 23:50:36,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:50:36,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:50:36,525 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:50:36,525 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] [2019-01-01 23:50:36,528 INFO L794 eck$LassoCheckResult]: Stem: 779#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(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.allocOnStack(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.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 684#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 685#L322 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 760#L330 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 794#L132 assume 0 != main_~tmp~0; 691#L103 ~switchedOnBeforeTS~0 := 0; 692#L155 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 698#L176-1 [2019-01-01 23:50:36,529 INFO L796 eck$LassoCheckResult]: Loop: 698#L176-1 assume !false; 747#L712 assume test_~splverifierCounter~0 < 4; 807#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 863#L721 assume !(0 != test_~tmp~5); 862#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 861#L731 assume !(0 != test_~tmp___0~1); 859#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 858#L741 assume 0 != test_~tmp___2~0; 856#L747-2 havoc __utac_acc__Specification5_spec__2_#t~ret1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 854#L889 __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 853#L165 assume !(0 != ~pumpRunning~0); 850#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 846#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret54, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 841#L810-1 assume !(0 != ~pumpRunning~0); 836#L785 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 835#L286 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 754#L176 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 755#L889-1 __utac_acc__Specification5_spec__3_#t~ret3 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret3;havoc __utac_acc__Specification5_spec__3_#t~ret3; 696#L180 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 698#L176-1 [2019-01-01 23:50:36,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:36,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-01-01 23:50:36,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:36,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:36,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:36,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:36,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1978697447, now seen corresponding path program 1 times [2019-01-01 23:50:36,797 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:36,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:36,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,799 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:50:36,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:50:36,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1522585107, now seen corresponding path program 1 times [2019-01-01 23:50:36,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:50:36,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:50:36,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:50:36,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:50:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:50:37,426 WARN L181 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-01-01 23:51:10,242 WARN L181 SmtUtils]: Spent 32.74 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-01-01 23:51:26,305 WARN L181 SmtUtils]: Spent 16.06 s on a formula simplification that was a NOOP. DAG size: 451 [2019-01-01 23:51:26,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:51:26 BoogieIcfgContainer [2019-01-01 23:51:26,439 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:51:26,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:51:26,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:51:26,440 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:51:26,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:50:31" (3/4) ... [2019-01-01 23:51:26,450 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 23:51:26,548 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 23:51:26,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:51:26,549 INFO L168 Benchmark]: Toolchain (without parser) took 57813.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 950.0 MB in the beginning and 951.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 281.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,551 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:51:26,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,553 INFO L168 Benchmark]: Boogie Preprocessor took 61.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:51:26,554 INFO L168 Benchmark]: RCFGBuilder took 1725.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,554 INFO L168 Benchmark]: BuchiAutomizer took 55108.71 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.0 GB in the beginning and 954.7 MB in the end (delta: 76.7 MB). Peak memory consumption was 424.6 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,556 INFO L168 Benchmark]: Witness Printer took 108.72 ms. Allocated memory is still 1.3 GB. Free memory was 954.7 MB in the beginning and 951.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-01-01 23:51:26,561 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 725.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1725.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 55108.71 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.0 GB in the beginning and 954.7 MB in the end (delta: 76.7 MB). Peak memory consumption was 424.6 MB. Max. memory is 11.5 GB. * Witness Printer took 108.72 ms. Allocated memory is still 1.3 GB. Free memory was 954.7 MB in the beginning and 951.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 54.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 52.7s. Construction of modules took 1.3s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 390 SDtfs, 999 SDslu, 470 SDs, 0 SdLazy, 105 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 711]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7894} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=7894, NULL=-17, NULL=0, NULL=0, NULL=-7, NULL=0, NULL=-22, NULL=0, NULL=0, NULL=-23, NULL=-24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41ce8431=0, NULL=-18, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7155bc25=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e564949=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ee70160=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@731ac9ae=0, NULL=-11, tmp=0, NULL=0, NULL=-9, NULL=0, NULL=-3, tmp=0, tmp=1, tmp___1=0, NULL=-16, retValue_acc=0, cleanupTimeShifts=4, NULL=7893, switchedOnBeforeTS=0, NULL=-4, NULL=-5, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3516947d=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=-19, NULL=-20, NULL=-10, retValue_acc=1, NULL=-21, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a07a858=0, NULL=0, NULL=-15, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-14, retValue_acc=1, NULL=0, NULL=-13, tmp___2=69, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58eea48b=0, NULL=-2, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4692bbe5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10d5bb69=0, head=0, tmp=0, NULL=0, NULL=-8, NULL=0, NULL=0, NULL=-12, NULL=-6} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L149] int switchedOnBeforeTS ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L504] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L326] int retValue_acc ; [L329] retValue_acc = 1 [L330] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L154] switchedOnBeforeTS = 0 [L702] int splverifierCounter ; [L703] int tmp ; [L704] int tmp___0 ; [L705] int tmp___1 ; [L706] int tmp___2 ; [L709] splverifierCounter = 0 Loop: [L711] COND TRUE 1 [L713] COND TRUE splverifierCounter < 4 [L719] tmp = __VERIFIER_nondet_int() [L721] COND FALSE !(\read(tmp)) [L729] tmp___0 = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp___0)) [L739] tmp___2 = __VERIFIER_nondet_int() [L741] COND TRUE \read(tmp___2) [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L163] switchedOnBeforeTS = isPumpRunning() [L778] COND FALSE !(\read(pumpRunning)) [L785] COND TRUE \read(systemActive) [L833] int tmp ; [L836] COND FALSE !(\read(pumpRunning)) [L807] int tmp ; [L810] COND FALSE !(\read(pumpRunning)) [L169] int tmp ; [L170] int tmp___0 ; [L282] int retValue_acc ; [L285] retValue_acc = waterLevel [L286] return (retValue_acc); [L174] tmp = getWaterLevel() [L176] COND TRUE tmp != 2 [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L178] tmp___0 = isPumpRunning() [L180] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...