./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f 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_product43_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 77b70849cb3dcecd37b0edacca9651109dbc42ac ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-0ed9222-m [2019-01-14 04:31:13,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:31:13,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:31:13,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:31:13,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:31:13,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:31:13,403 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:31:13,405 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:31:13,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:31:13,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:31:13,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:31:13,410 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:31:13,411 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:31:13,412 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:31:13,414 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:31:13,415 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:31:13,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:31:13,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:31:13,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:31:13,422 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:31:13,423 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:31:13,425 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:31:13,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:31:13,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:31:13,428 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:31:13,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:31:13,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:31:13,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:31:13,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:31:13,434 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:31:13,434 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:31:13,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:31:13,436 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:31:13,436 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:31:13,437 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:31:13,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:31:13,438 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:31:13,456 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:31:13,456 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:31:13,458 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:31:13,458 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:31:13,458 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:31:13,459 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:31:13,459 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:31:13,459 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:31:13,459 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:31:13,459 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:31:13,459 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:31:13,460 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:31:13,460 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:31:13,460 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:31:13,460 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:31:13,462 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:31:13,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:31:13,462 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:31:13,462 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:31:13,463 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:31:13,464 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:31:13,466 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:31:13,466 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:31:13,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:31:13,466 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:31:13,467 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:31:13,468 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:31:13,468 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 -> 77b70849cb3dcecd37b0edacca9651109dbc42ac [2019-01-14 04:31:13,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:31:13,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:31:13,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:31:13,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:31:13,548 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:31:13,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2019-01-14 04:31:13,598 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f876997/bfffb1632fe34643bc9e21208b4781be/FLAGe3c1ab608 [2019-01-14 04:31:14,091 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:31:14,091 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2019-01-14 04:31:14,115 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f876997/bfffb1632fe34643bc9e21208b4781be/FLAGe3c1ab608 [2019-01-14 04:31:14,390 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f876997/bfffb1632fe34643bc9e21208b4781be [2019-01-14 04:31:14,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:31:14,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:31:14,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:31:14,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:31:14,401 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:31:14,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:31:14" (1/1) ... [2019-01-14 04:31:14,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17252cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:14, skipping insertion in model container [2019-01-14 04:31:14,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:31:14" (1/1) ... [2019-01-14 04:31:14,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:31:14,481 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:31:14,829 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:31:14,852 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:31:14,978 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:31:15,101 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:31:15,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15 WrapperNode [2019-01-14 04:31:15,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:31:15,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:31:15,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:31:15,103 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:31:15,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:31:15,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:31:15,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:31:15,182 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:31:15,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (1/1) ... [2019-01-14 04:31:15,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:31:15,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:31:15,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:31:15,249 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:31:15,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (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 [2019-01-14 04:31:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 04:31:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 04:31:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:31:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:31:16,614 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:31:16,614 INFO L286 CfgBuilder]: Removed 132 assue(true) statements. [2019-01-14 04:31:16,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:31:16 BoogieIcfgContainer [2019-01-14 04:31:16,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:31:16,617 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:31:16,617 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:31:16,620 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:31:16,621 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:31:16,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:31:14" (1/3) ... [2019-01-14 04:31:16,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8fa99ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:31:16, skipping insertion in model container [2019-01-14 04:31:16,623 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:31:16,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:31:15" (2/3) ... [2019-01-14 04:31:16,624 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8fa99ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:31:16, skipping insertion in model container [2019-01-14 04:31:16,624 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:31:16,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:31:16" (3/3) ... [2019-01-14 04:31:16,626 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2019-01-14 04:31:16,694 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:31:16,694 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:31:16,695 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:31:16,695 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:31:16,695 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:31:16,695 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:31:16,695 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:31:16,696 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:31:16,696 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:31:16,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2019-01-14 04:31:16,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2019-01-14 04:31:16,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:31:16,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:31:16,774 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:16,774 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:16,775 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:31:16,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2019-01-14 04:31:16,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2019-01-14 04:31:16,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:31:16,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:31:16,792 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:16,793 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:16,799 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 51#L944true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 52#L952true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 45#L498true assume 0 != main_~tmp~3; 58#L469true ~switchedOnBeforeTS~0 := 0; 76#L879true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L900-1true [2019-01-14 04:31:16,799 INFO L796 eck$LassoCheckResult]: Loop: 30#L900-1true assume !false; 55#L524true assume test_~splverifierCounter~0 < 4; 81#L525true test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 12#L533true assume !(0 != test_~tmp~4); 88#L533-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 87#L543true assume !(0 != test_~tmp___0~0); 65#L543-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 39#L553true assume 0 != test_~tmp___2~0; 4#L559-1true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 17#L702true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 29#L889true assume !(0 != ~pumpRunning~0); 6#L599true assume !(0 != ~systemActive~0); 89#L606true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 59#L853true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 27#L900true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 30#L900-1true [2019-01-14 04:31:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-01-14 04:31:16,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:16,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:16,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:16,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:16,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:17,693 INFO L82 PathProgramCache]: Analyzing trace with hash -241460907, now seen corresponding path program 1 times [2019-01-14 04:31:17,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:17,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:17,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:17,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:17,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:17,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1692564303, now seen corresponding path program 1 times [2019-01-14 04:31:17,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:17,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:17,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:17,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:17,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:31:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:31:18,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:31:18,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 04:31:18,256 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-01-14 04:31:18,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 04:31:18,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-14 04:31:18,368 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2019-01-14 04:31:18,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:31:18,813 INFO L93 Difference]: Finished difference Result 241 states and 334 transitions. [2019-01-14 04:31:18,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 04:31:18,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 334 transitions. [2019-01-14 04:31:18,837 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2019-01-14 04:31:18,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 220 states and 313 transitions. [2019-01-14 04:31:18,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2019-01-14 04:31:18,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2019-01-14 04:31:18,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 313 transitions. [2019-01-14 04:31:18,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:31:18,866 INFO L706 BuchiCegarLoop]: Abstraction has 220 states and 313 transitions. [2019-01-14 04:31:18,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 313 transitions. [2019-01-14 04:31:18,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 137. [2019-01-14 04:31:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-01-14 04:31:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 194 transitions. [2019-01-14 04:31:18,927 INFO L729 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2019-01-14 04:31:18,927 INFO L609 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2019-01-14 04:31:18,927 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:31:18,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 194 transitions. [2019-01-14 04:31:18,930 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-01-14 04:31:18,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:31:18,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:31:18,932 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:18,932 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:18,932 INFO L794 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 373#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 374#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 418#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 413#L498 assume 0 != main_~tmp~3; 414#L469 ~switchedOnBeforeTS~0 := 0; 423#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 393#L900-1 [2019-01-14 04:31:18,936 INFO L796 eck$LassoCheckResult]: Loop: 393#L900-1 assume !false; 397#L524 assume test_~splverifierCounter~0 < 4; 420#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 368#L533 assume !(0 != test_~tmp~4); 370#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 442#L543 assume !(0 != test_~tmp___0~0); 381#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 407#L553 assume 0 != test_~tmp___2~0; 356#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 357#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 377#L889 assume !(0 != ~pumpRunning~0); 360#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 361#L631 assume !(0 == ~pumpRunning~0); 437#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 424#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 392#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 393#L900-1 [2019-01-14 04:31:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-01-14 04:31:18,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:18,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:18,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:18,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:18,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:19,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1062877059, now seen corresponding path program 1 times [2019-01-14 04:31:19,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:19,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:19,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:19,352 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:31:19,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:31:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:31:19,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:31:19,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 04:31:19,420 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 04:31:19,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 04:31:19,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 04:31:19,422 INFO L87 Difference]: Start difference. First operand 137 states and 194 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-01-14 04:31:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:31:19,969 INFO L93 Difference]: Finished difference Result 184 states and 248 transitions. [2019-01-14 04:31:19,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 04:31:19,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 248 transitions. [2019-01-14 04:31:19,973 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2019-01-14 04:31:19,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 248 transitions. [2019-01-14 04:31:19,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2019-01-14 04:31:19,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-01-14 04:31:19,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 248 transitions. [2019-01-14 04:31:19,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:31:19,979 INFO L706 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-01-14 04:31:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 248 transitions. [2019-01-14 04:31:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2019-01-14 04:31:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-01-14 04:31:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2019-01-14 04:31:19,991 INFO L729 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-01-14 04:31:19,991 INFO L609 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-01-14 04:31:19,992 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 04:31:19,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 248 transitions. [2019-01-14 04:31:19,994 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2019-01-14 04:31:19,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:31:19,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:31:19,996 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:19,996 INFO L868 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] [2019-01-14 04:31:19,997 INFO L794 eck$LassoCheckResult]: Stem: 737#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 702#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 703#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 746#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 740#L498 assume 0 != main_~tmp~3; 741#L469 ~switchedOnBeforeTS~0 := 0; 756#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 773#L900-1 [2019-01-14 04:31:19,997 INFO L796 eck$LassoCheckResult]: Loop: 773#L900-1 assume !false; 853#L524 assume test_~splverifierCounter~0 < 4; 852#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 851#L533 assume !(0 != test_~tmp~4); 781#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 780#L543 assume !(0 != test_~tmp___0~0); 708#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 734#L553 assume 0 != test_~tmp___2~0; 683#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 684#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 704#L889 assume !(0 != ~pumpRunning~0); 687#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 688#L631 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 765#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 685#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 686#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 747#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 731#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 732#L635 assume !(0 != processEnvironment_~tmp~5); 784#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 858#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 856#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 773#L900-1 [2019-01-14 04:31:19,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:19,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-01-14 04:31:19,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:20,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:20,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:20,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:20,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:20,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1275820079, now seen corresponding path program 1 times [2019-01-14 04:31:20,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:20,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:20,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:20,321 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:31:20,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:31:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:31:20,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:31:20,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 04:31:20,557 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 04:31:20,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 04:31:20,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 04:31:20,558 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-01-14 04:31:21,088 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-01-14 04:31:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:31:22,091 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2019-01-14 04:31:22,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 04:31:22,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 476 states and 629 transitions. [2019-01-14 04:31:22,097 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 325 [2019-01-14 04:31:22,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 476 states to 476 states and 629 transitions. [2019-01-14 04:31:22,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 476 [2019-01-14 04:31:22,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 476 [2019-01-14 04:31:22,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 476 states and 629 transitions. [2019-01-14 04:31:22,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:31:22,105 INFO L706 BuchiCegarLoop]: Abstraction has 476 states and 629 transitions. [2019-01-14 04:31:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states and 629 transitions. [2019-01-14 04:31:22,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 361. [2019-01-14 04:31:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-01-14 04:31:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 474 transitions. [2019-01-14 04:31:22,125 INFO L729 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2019-01-14 04:31:22,125 INFO L609 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2019-01-14 04:31:22,125 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-14 04:31:22,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 474 transitions. [2019-01-14 04:31:22,128 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 264 [2019-01-14 04:31:22,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:31:22,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:31:22,130 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:31:22,131 INFO L868 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] [2019-01-14 04:31:22,131 INFO L794 eck$LassoCheckResult]: Stem: 1411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 1378#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1379#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1421#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1415#L498 assume 0 != main_~tmp~3; 1416#L469 ~switchedOnBeforeTS~0 := 0; 1428#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1398#L900-1 [2019-01-14 04:31:22,131 INFO L796 eck$LassoCheckResult]: Loop: 1398#L900-1 assume !false; 1399#L524 assume test_~splverifierCounter~0 < 4; 1425#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 1696#L533 assume !(0 != test_~tmp~4); 1695#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 1694#L543 assume !(0 != test_~tmp___0~0); 1692#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1408#L553 assume 0 != test_~tmp___2~0; 1359#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1360#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1380#L889 assume !(0 != ~pumpRunning~0); 1363#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1364#L631 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1440#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1441#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1587#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1584#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1583#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1582#L635 assume !(0 != processEnvironment_~tmp~5); 1458#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1429#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1430#L900 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1681#L702-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1412#L904 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1398#L900-1 [2019-01-14 04:31:22,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:22,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-01-14 04:31:22,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:22,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:22,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:22,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:22,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:22,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1997403210, now seen corresponding path program 1 times [2019-01-14 04:31:22,425 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:22,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:22,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:31:22,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:22,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:31:22,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1856809872, now seen corresponding path program 1 times [2019-01-14 04:31:22,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:31:22,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:31:22,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:31:22,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:31:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:31:23,390 WARN L181 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-01-14 04:31:23,512 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-01-14 04:31:51,133 WARN L181 SmtUtils]: Spent 27.61 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-01-14 04:32:04,106 WARN L181 SmtUtils]: Spent 12.96 s on a formula simplification that was a NOOP. DAG size: 451 [2019-01-14 04:32:04,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:32:04 BoogieIcfgContainer [2019-01-14 04:32:04,208 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:32:04,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:32:04,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:32:04,209 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:32:04,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:31:16" (3/4) ... [2019-01-14 04:32:04,215 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 04:32:04,298 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 04:32:04,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:32:04,299 INFO L168 Benchmark]: Toolchain (without parser) took 49904.00 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 329.3 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -267.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. [2019-01-14 04:32:04,303 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-01-14 04:32:04,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. [2019-01-14 04:32:04,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.46 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 04:32:04,308 INFO L168 Benchmark]: Boogie Preprocessor took 66.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:32:04,309 INFO L168 Benchmark]: RCFGBuilder took 1367.92 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2019-01-14 04:32:04,309 INFO L168 Benchmark]: BuchiAutomizer took 47591.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.0 MB). Peak memory consumption was 400.5 MB. Max. memory is 11.5 GB. [2019-01-14 04:32:04,310 INFO L168 Benchmark]: Witness Printer took 89.37 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:32:04,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.46 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1367.92 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 47591.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.0 MB). Peak memory consumption was 400.5 MB. Max. memory is 11.5 GB. * Witness Printer took 89.37 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 361 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 47.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 44.6s. Construction of modules took 1.9s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 198 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 361 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 422 SDtfs, 993 SDslu, 1083 SDs, 0 SdLazy, 138 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 523]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=-4, retValue_acc=0, NULL=0, NULL=0, NULL=-23, NULL=-20, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=-6, retValue_acc=0, NULL=-11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6341cd17=0, NULL=-8, NULL=-16, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33cd5880=0, NULL=-18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63cc1620=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d348db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@294cef44=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@595ef1f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58dd4c5e=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-24, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7beb8628=0, NULL=-13, \result=0, NULL=-12, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=-9, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4409f593=0, NULL=-21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45913b61=0, NULL=-2, tmp=1, NULL=0, NULL=0, \result=1, NULL=-7, NULL=-25, NULL=-3, NULL=-15, retValue_acc=1, tmp=1, tmp___2=63, NULL=-14, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=-10, NULL=-1, NULL=0, NULL=-5, NULL=0, NULL=0, NULL=-17, NULL=0, NULL=-19, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L778] int waterLevel = 1; [L779] int methaneLevelCritical = 0; [L873] int switchedOnBeforeTS ; [L489] int retValue_acc ; [L490] int tmp ; [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L878] switchedOnBeforeTS = 0 [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 Loop: [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND FALSE !(\read(tmp)) [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] return (retValue_acc); [L887] switchedOnBeforeTS = isPumpRunning() [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L858] int retValue_acc ; [L861] COND TRUE waterLevel < 2 [L862] retValue_acc = 1 [L863] return (retValue_acc); [L749] tmp = isHighWaterSensorDry() [L751] COND TRUE \read(tmp) [L752] tmp___0 = 0 [L756] retValue_acc = tmp___0 [L757] return (retValue_acc); [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L893] int tmp ; [L894] int tmp___0 ; [L849] int retValue_acc ; [L852] retValue_acc = waterLevel [L853] return (retValue_acc); [L898] tmp = getWaterLevel() [L900] COND TRUE tmp != 2 [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] return (retValue_acc); [L902] tmp___0 = isPumpRunning() [L904] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...