./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec5_product39_true-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_spec5_product39_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 e803bbedaeee18bc8aba1072b7c7abad6be5dde7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2018-11-29 00:01:11,440 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-29 00:01:11,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-29 00:01:11,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-29 00:01:11,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-29 00:01:11,455 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-29 00:01:11,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-29 00:01:11,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-29 00:01:11,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-29 00:01:11,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-29 00:01:11,462 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-29 00:01:11,462 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-29 00:01:11,463 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-29 00:01:11,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-29 00:01:11,465 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-29 00:01:11,466 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-29 00:01:11,467 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-29 00:01:11,472 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-29 00:01:11,474 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-29 00:01:11,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-29 00:01:11,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-29 00:01:11,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-29 00:01:11,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-29 00:01:11,491 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-29 00:01:11,491 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-29 00:01:11,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-29 00:01:11,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-29 00:01:11,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-29 00:01:11,501 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-29 00:01:11,502 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-29 00:01:11,502 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-29 00:01:11,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-29 00:01:11,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-29 00:01:11,507 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-29 00:01:11,508 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-29 00:01:11,508 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-29 00:01:11,509 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-29 00:01:11,540 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-29 00:01:11,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-29 00:01:11,543 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-29 00:01:11,543 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-29 00:01:11,543 INFO L133 SettingsManager]: * Use SBE=true [2018-11-29 00:01:11,543 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-29 00:01:11,544 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-29 00:01:11,544 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-29 00:01:11,544 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-29 00:01:11,544 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-29 00:01:11,544 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-29 00:01:11,545 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-29 00:01:11,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-29 00:01:11,545 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-29 00:01:11,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-29 00:01:11,546 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-29 00:01:11,548 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-29 00:01:11,548 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-29 00:01:11,548 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-29 00:01:11,548 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-29 00:01:11,549 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-29 00:01:11,549 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-29 00:01:11,549 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-29 00:01:11,549 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-29 00:01:11,549 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-29 00:01:11,549 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-29 00:01:11,550 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-29 00:01:11,551 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 -> e803bbedaeee18bc8aba1072b7c7abad6be5dde7 [2018-11-29 00:01:11,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-29 00:01:11,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-29 00:01:11,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-29 00:01:11,605 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-29 00:01:11,605 INFO L276 PluginConnector]: CDTParser initialized [2018-11-29 00:01:11,606 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec5_product39_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:11,671 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ded920a/ddcbb0d54a20452eaa399733d57ad9a3/FLAGe67a5cc74 [2018-11-29 00:01:12,229 INFO L307 CDTParser]: Found 1 translation units. [2018-11-29 00:01:12,230 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec5_product39_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:12,244 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ded920a/ddcbb0d54a20452eaa399733d57ad9a3/FLAGe67a5cc74 [2018-11-29 00:01:12,502 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ded920a/ddcbb0d54a20452eaa399733d57ad9a3 [2018-11-29 00:01:12,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-29 00:01:12,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-29 00:01:12,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-29 00:01:12,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-29 00:01:12,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-29 00:01:12,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:12" (1/1) ... [2018-11-29 00:01:12,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa32a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:12, skipping insertion in model container [2018-11-29 00:01:12,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:12" (1/1) ... [2018-11-29 00:01:12,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-29 00:01:12,596 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-29 00:01:12,963 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:01:12,991 INFO L191 MainTranslator]: Completed pre-run [2018-11-29 00:01:13,119 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:01:13,245 INFO L195 MainTranslator]: Completed translation [2018-11-29 00:01:13,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13 WrapperNode [2018-11-29 00:01:13,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-29 00:01:13,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-29 00:01:13,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-29 00:01:13,246 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-29 00:01:13,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-29 00:01:13,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-29 00:01:13,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-29 00:01:13,329 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-29 00:01:13,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (1/1) ... [2018-11-29 00:01:13,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-29 00:01:13,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-29 00:01:13,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-29 00:01:13,377 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-29 00:01:13,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (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 [2018-11-29 00:01:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-29 00:01:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-29 00:01:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-29 00:01:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-29 00:01:14,649 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-29 00:01:14,649 INFO L280 CfgBuilder]: Removed 174 assue(true) statements. [2018-11-29 00:01:14,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:14 BoogieIcfgContainer [2018-11-29 00:01:14,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-29 00:01:14,651 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-29 00:01:14,651 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-29 00:01:14,656 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-29 00:01:14,657 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:14,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:01:12" (1/3) ... [2018-11-29 00:01:14,659 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55d378fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:01:14, skipping insertion in model container [2018-11-29 00:01:14,660 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:14,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:13" (2/3) ... [2018-11-29 00:01:14,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55d378fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:01:14, skipping insertion in model container [2018-11-29 00:01:14,660 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:14,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:14" (3/3) ... [2018-11-29 00:01:14,664 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product39_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:14,725 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-29 00:01:14,726 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-29 00:01:14,727 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-29 00:01:14,727 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-29 00:01:14,727 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-29 00:01:14,727 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-29 00:01:14,727 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-29 00:01:14,728 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-29 00:01:14,728 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-29 00:01:14,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2018-11-29 00:01:14,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-29 00:01:14,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:14,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:14,793 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:14,794 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:14,794 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-29 00:01:14,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2018-11-29 00:01:14,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-29 00:01:14,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:14,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:14,804 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:14,804 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:14,811 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 8#L-1true havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 97#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 92#L82true main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 99#L382true assume 0 != main_~tmp~3; 30#L356true ~switchedOnBeforeTS~0 := 0; 113#L470true havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 37#L491-1true [2018-11-29 00:01:14,811 INFO L796 eck$LassoCheckResult]: Loop: 37#L491-1true assume !false; 90#L407true assume test_~splverifierCounter~0 < 4; 44#L408true test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 57#L416true assume !(0 != test_~tmp~4); 58#L416-1true test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 115#L426true assume !(0 != test_~tmp___0~1); 98#L426-1true test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 24#L436true assume 0 != test_~tmp___2~0; 4#L442-1true havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 71#L220true __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 36#L480true assume !(0 != ~pumpRunning~0); 15#L109true assume !(0 != ~systemActive~0); 50#L116true havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 17#L954true __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 34#L491true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 37#L491-1true [2018-11-29 00:01:14,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:14,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-29 00:01:14,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:14,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:14,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:14,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:14,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:15,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:15,163 INFO L82 PathProgramCache]: Analyzing trace with hash -240260331, now seen corresponding path program 1 times [2018-11-29 00:01:15,163 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:15,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:15,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:15,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:15,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:15,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:15,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1693764879, now seen corresponding path program 1 times [2018-11-29 00:01:15,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:15,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:15,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:15,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:15,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:15,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:15,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-29 00:01:15,651 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-29 00:01:15,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-29 00:01:15,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-29 00:01:15,773 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 6 states. [2018-11-29 00:01:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:16,377 INFO L93 Difference]: Finished difference Result 289 states and 412 transitions. [2018-11-29 00:01:16,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-29 00:01:16,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 412 transitions. [2018-11-29 00:01:16,408 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 187 [2018-11-29 00:01:16,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 268 states and 391 transitions. [2018-11-29 00:01:16,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2018-11-29 00:01:16,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2018-11-29 00:01:16,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 391 transitions. [2018-11-29 00:01:16,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:16,436 INFO L705 BuchiCegarLoop]: Abstraction has 268 states and 391 transitions. [2018-11-29 00:01:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 391 transitions. [2018-11-29 00:01:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 161. [2018-11-29 00:01:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-29 00:01:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 233 transitions. [2018-11-29 00:01:16,512 INFO L728 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2018-11-29 00:01:16,513 INFO L608 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2018-11-29 00:01:16,513 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-29 00:01:16,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 233 transitions. [2018-11-29 00:01:16,521 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2018-11-29 00:01:16,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:16,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:16,523 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:16,523 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:16,524 INFO L794 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 435#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 436#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 533#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 534#L382 assume 0 != main_~tmp~3; 470#L356 ~switchedOnBeforeTS~0 := 0; 471#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 475#L491-1 [2018-11-29 00:01:16,524 INFO L796 eck$LassoCheckResult]: Loop: 475#L491-1 assume !false; 480#L407 assume test_~splverifierCounter~0 < 4; 487#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 488#L416 assume !(0 != test_~tmp~4); 501#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 502#L426 assume !(0 != test_~tmp___0~1); 490#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 463#L436 assume 0 != test_~tmp___2~0; 426#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 427#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 479#L480 assume !(0 != ~pumpRunning~0); 447#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 448#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 497#L141-1 assume !(0 == ~pumpRunning~0); 494#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 451#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 452#L491 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 475#L491-1 [2018-11-29 00:01:16,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:16,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-29 00:01:16,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:16,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:16,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:16,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:16,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:16,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:16,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1402231348, now seen corresponding path program 1 times [2018-11-29 00:01:16,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:16,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:16,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:16,653 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:16,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:16,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:16,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-29 00:01:16,716 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:01:16,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-29 00:01:16,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-29 00:01:16,718 INFO L87 Difference]: Start difference. First operand 161 states and 233 transitions. cyclomatic complexity: 75 Second operand 3 states. [2018-11-29 00:01:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:17,451 INFO L93 Difference]: Finished difference Result 208 states and 284 transitions. [2018-11-29 00:01:17,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-29 00:01:17,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 284 transitions. [2018-11-29 00:01:17,456 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2018-11-29 00:01:17,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 208 states and 284 transitions. [2018-11-29 00:01:17,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2018-11-29 00:01:17,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2018-11-29 00:01:17,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 284 transitions. [2018-11-29 00:01:17,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:17,461 INFO L705 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2018-11-29 00:01:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 284 transitions. [2018-11-29 00:01:17,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-11-29 00:01:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-11-29 00:01:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 284 transitions. [2018-11-29 00:01:17,487 INFO L728 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2018-11-29 00:01:17,487 INFO L608 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2018-11-29 00:01:17,487 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-29 00:01:17,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 284 transitions. [2018-11-29 00:01:17,492 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2018-11-29 00:01:17,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:17,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:17,495 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:17,495 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] [2018-11-29 00:01:17,496 INFO L794 eck$LassoCheckResult]: Stem: 912#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 810#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 811#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 924#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 925#L382 assume 0 != main_~tmp~3; 849#L356 ~switchedOnBeforeTS~0 := 0; 850#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 932#L491-1 [2018-11-29 00:01:17,496 INFO L796 eck$LassoCheckResult]: Loop: 932#L491-1 assume !false; 922#L407 assume test_~splverifierCounter~0 < 4; 868#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 869#L416 assume !(0 != test_~tmp~4); 886#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 887#L426 assume !(0 != test_~tmp___0~1); 871#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 841#L436 assume 0 != test_~tmp___2~0; 801#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 802#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 905#L480 assume !(0 != ~pumpRunning~0); 823#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 824#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 881#L141-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 833#L962-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 834#L967-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 865#L269-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 926#L269-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 908#L275-1 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 909#L145-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 891#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 988#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 986#L491 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 932#L491-1 [2018-11-29 00:01:17,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:17,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-29 00:01:17,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:17,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:17,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:17,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:17,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:17,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:17,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2024417080, now seen corresponding path program 1 times [2018-11-29 00:01:17,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:17,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:17,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:17,558 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:17,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:17,720 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-29 00:01:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:17,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:17,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-29 00:01:17,742 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:01:17,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-29 00:01:17,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-29 00:01:17,744 INFO L87 Difference]: Start difference. First operand 208 states and 284 transitions. cyclomatic complexity: 79 Second operand 5 states. [2018-11-29 00:01:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:18,269 INFO L93 Difference]: Finished difference Result 817 states and 1123 transitions. [2018-11-29 00:01:18,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-29 00:01:18,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1123 transitions. [2018-11-29 00:01:18,279 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 575 [2018-11-29 00:01:18,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 817 states and 1123 transitions. [2018-11-29 00:01:18,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 817 [2018-11-29 00:01:18,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 817 [2018-11-29 00:01:18,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 817 states and 1123 transitions. [2018-11-29 00:01:18,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:18,292 INFO L705 BuchiCegarLoop]: Abstraction has 817 states and 1123 transitions. [2018-11-29 00:01:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states and 1123 transitions. [2018-11-29 00:01:18,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 406. [2018-11-29 00:01:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2018-11-29 00:01:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 546 transitions. [2018-11-29 00:01:18,321 INFO L728 BuchiCegarLoop]: Abstraction has 406 states and 546 transitions. [2018-11-29 00:01:18,321 INFO L608 BuchiCegarLoop]: Abstraction has 406 states and 546 transitions. [2018-11-29 00:01:18,321 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-29 00:01:18,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 406 states and 546 transitions. [2018-11-29 00:01:18,325 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 294 [2018-11-29 00:01:18,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:18,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:18,326 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:18,326 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:18,327 INFO L794 eck$LassoCheckResult]: Stem: 1972#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1855#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 1856#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1986#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 1987#L382 assume 0 != main_~tmp~3; 1901#L356 ~switchedOnBeforeTS~0 := 0; 1902#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1998#L491-1 [2018-11-29 00:01:18,327 INFO L796 eck$LassoCheckResult]: Loop: 1998#L491-1 assume !false; 2131#L407 assume test_~splverifierCounter~0 < 4; 2132#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 2218#L416 assume !(0 != test_~tmp~4); 2215#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 2214#L426 assume !(0 != test_~tmp___0~1); 2212#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 2211#L436 assume 0 != test_~tmp___2~0; 2210#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2222#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 2219#L480 assume !(0 != ~pumpRunning~0); 1871#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1872#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1938#L141-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1882#L962-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1883#L967-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1918#L269-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1988#L269-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1968#L275-1 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 1969#L145-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1952#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2164#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 2160#L491 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2161#L220-1 __utac_acc__Specification5_spec__3_#t~ret28 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 2157#L495 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1998#L491-1 [2018-11-29 00:01:18,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-11-29 00:01:18,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:18,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:18,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:18,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:18,388 INFO L82 PathProgramCache]: Analyzing trace with hash -155383309, now seen corresponding path program 1 times [2018-11-29 00:01:18,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:18,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:18,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,389 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:18,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:18,407 INFO L82 PathProgramCache]: Analyzing trace with hash -218809491, now seen corresponding path program 1 times [2018-11-29 00:01:18,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:18,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:18,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:18,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:18,931 WARN L180 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-29 00:01:27,351 WARN L180 SmtUtils]: Spent 8.32 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-29 00:01:31,263 WARN L180 SmtUtils]: Spent 3.91 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-29 00:01:31,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:01:31 BoogieIcfgContainer [2018-11-29 00:01:31,329 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-29 00:01:31,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-29 00:01:31,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-29 00:01:31,329 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-29 00:01:31,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:14" (3/4) ... [2018-11-29 00:01:31,334 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-29 00:01:31,410 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-29 00:01:31,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-29 00:01:31,411 INFO L168 Benchmark]: Toolchain (without parser) took 18904.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.9 MB). Free memory was 950.0 MB in the beginning and 833.6 MB in the end (delta: 116.4 MB). Peak memory consumption was 426.3 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,412 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-29 00:01:31,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.76 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,414 INFO L168 Benchmark]: Boogie Preprocessor took 47.93 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,415 INFO L168 Benchmark]: RCFGBuilder took 1273.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,416 INFO L168 Benchmark]: BuchiAutomizer took 16677.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.0 GB in the beginning and 836.8 MB in the end (delta: 208.6 MB). Peak memory consumption was 398.6 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,417 INFO L168 Benchmark]: Witness Printer took 81.01 ms. Allocated memory is still 1.3 GB. Free memory was 836.8 MB in the beginning and 833.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:31,422 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 737.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.76 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.93 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1273.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 16677.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 1.0 GB in the beginning and 836.8 MB in the end (delta: 208.6 MB). Peak memory consumption was 398.6 MB. Max. memory is 11.5 GB. * Witness Printer took 81.01 ms. Allocated memory is still 1.3 GB. Free memory was 836.8 MB in the beginning and 833.6 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 406 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 14.3s. Construction of modules took 1.5s. 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, 518 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 406 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 612 SDtfs, 1486 SDslu, 1606 SDs, 0 SdLazy, 210 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s 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: 406]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=40, NULL=0, NULL=0, retValue_acc=1, NULL=24, retValue_acc=0, NULL=26, NULL=0, NULL=0, NULL=31, NULL=18, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, NULL=0, tmp=0, tmp=1, NULL=0, NULL=0, tmp___1=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=12, \result=0, NULL=37, NULL=0, systemActive=1, waterLevel=1, NULL=15, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f281046=0, NULL=34, NULL=0, \result=0, NULL=20, NULL=0, NULL=0, NULL=23, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, NULL=33, NULL=28, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204eac28=0, NULL=39, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44c11a6f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1177542f=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28f11d05=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62263738=0, \result=1, NULL=22, NULL=36, NULL=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79038175=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e5252f2=0, NULL=17, retValue_acc=1, tmp___2=56, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=27, NULL=29, NULL=14, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@730ec228=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17546df6=0, NULL=11, NULL=0, NULL=0, NULL=35, NULL=0, NULL=38, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5967e067=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L295] int cleanupTimeShifts = 4; [L464] int switchedOnBeforeTS ; [L682] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int waterLevel = 1; [L880] int methaneLevelCritical = 0; [L373] int retValue_acc ; [L374] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L380] tmp = valid_product() [L382] COND TRUE \read(tmp) [L469] switchedOnBeforeTS = 0 [L397] int splverifierCounter ; [L398] int tmp ; [L399] int tmp___0 ; [L400] int tmp___1 ; [L401] int tmp___2 ; [L404] splverifierCounter = 0 Loop: [L406] COND TRUE 1 [L408] COND TRUE splverifierCounter < 4 [L414] tmp = __VERIFIER_nondet_int() [L416] COND FALSE !(\read(tmp)) [L424] tmp___0 = __VERIFIER_nondet_int() [L426] COND FALSE !(\read(tmp___0)) [L434] tmp___2 = __VERIFIER_nondet_int() [L436] COND TRUE \read(tmp___2) [L216] int retValue_acc ; [L219] retValue_acc = pumpRunning [L220] return (retValue_acc); [L478] switchedOnBeforeTS = isPumpRunning() [L109] COND FALSE !(\read(pumpRunning)) [L116] COND TRUE \read(systemActive) [L164] int tmp ; [L167] COND FALSE !(\read(pumpRunning)) [L138] int tmp ; [L141] COND TRUE ! pumpRunning [L261] int retValue_acc ; [L262] int tmp ; [L263] int tmp___0 ; [L959] int retValue_acc ; [L962] COND TRUE waterLevel < 2 [L963] retValue_acc = 1 [L964] return (retValue_acc); [L267] tmp = isHighWaterSensorDry() [L269] COND TRUE \read(tmp) [L270] tmp___0 = 0 [L274] retValue_acc = tmp___0 [L275] return (retValue_acc); [L143] tmp = isHighWaterLevel() [L145] COND FALSE !(\read(tmp)) [L484] int tmp ; [L485] int tmp___0 ; [L950] int retValue_acc ; [L953] retValue_acc = waterLevel [L954] return (retValue_acc); [L489] tmp = getWaterLevel() [L491] COND TRUE tmp != 2 [L216] int retValue_acc ; [L219] retValue_acc = pumpRunning [L220] return (retValue_acc); [L493] tmp___0 = isPumpRunning() [L495] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...