./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec2_product28_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_spec2_product28_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 1165f07e3d74a20c4613b7b4bc48cc7f6e23e78e .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:56:21,457 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:56:21,459 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:56:21,471 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:56:21,471 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:56:21,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:56:21,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:56:21,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:56:21,478 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:56:21,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:56:21,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:56:21,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:56:21,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:56:21,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:56:21,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:56:21,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:56:21,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:56:21,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:56:21,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:56:21,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:56:21,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:56:21,498 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:56:21,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:56:21,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:56:21,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:56:21,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:56:21,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:56:21,504 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:56:21,505 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:56:21,506 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:56:21,506 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:56:21,507 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:56:21,507 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:56:21,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:56:21,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:56:21,510 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:56:21,510 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:56:21,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:56:21,527 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:56:21,529 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:56:21,529 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:56:21,529 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:56:21,529 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:56:21,529 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:56:21,530 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:56:21,530 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:56:21,530 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:56:21,530 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:56:21,530 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:56:21,530 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:56:21,531 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:56:21,532 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:56:21,532 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:56:21,532 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:56:21,532 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:56:21,532 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:56:21,533 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:56:21,533 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:56:21,533 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:56:21,533 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:56:21,533 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:56:21,533 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:56:21,534 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:56:21,535 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 -> 1165f07e3d74a20c4613b7b4bc48cc7f6e23e78e [2018-11-28 23:56:21,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:56:21,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:56:21,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:56:21,598 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:56:21,598 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:56:21,599 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec2_product28_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:21,674 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e2c45d2/d5b88725a0254eb2b1dce63b3901dd95/FLAG1b99fd6ba [2018-11-28 23:56:22,223 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:56:22,224 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec2_product28_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:22,237 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e2c45d2/d5b88725a0254eb2b1dce63b3901dd95/FLAG1b99fd6ba [2018-11-28 23:56:22,502 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e2c45d2/d5b88725a0254eb2b1dce63b3901dd95 [2018-11-28 23:56:22,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:56:22,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:56:22,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:22,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:56:22,513 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:56:22,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:22" (1/1) ... [2018-11-28 23:56:22,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e34a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:22, skipping insertion in model container [2018-11-28 23:56:22,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:22" (1/1) ... [2018-11-28 23:56:22,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:56:22,589 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:56:22,974 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:23,001 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:56:23,156 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:23,292 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:56:23,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23 WrapperNode [2018-11-28 23:56:23,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:23,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:23,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:56:23,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:56:23,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:23,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:56:23,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:56:23,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:56:23,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... [2018-11-28 23:56:23,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:56:23,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:56:23,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:56:23,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:56:23,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:56:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:56:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:56:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:56:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:56:24,618 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:56:24,618 INFO L280 CfgBuilder]: Removed 104 assue(true) statements. [2018-11-28 23:56:24,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:24 BoogieIcfgContainer [2018-11-28 23:56:24,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:56:24,620 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:56:24,620 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:56:24,623 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:56:24,624 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:24,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:56:22" (1/3) ... [2018-11-28 23:56:24,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bb7d818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:56:24, skipping insertion in model container [2018-11-28 23:56:24,626 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:24,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:23" (2/3) ... [2018-11-28 23:56:24,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bb7d818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:56:24, skipping insertion in model container [2018-11-28 23:56:24,626 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:56:24,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:24" (3/3) ... [2018-11-28 23:56:24,629 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product28_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:24,684 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:56:24,685 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:56:24,685 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:56:24,685 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:56:24,686 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:56:24,686 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:56:24,686 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:56:24,686 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:56:24,687 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:56:24,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2018-11-28 23:56:24,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2018-11-28 23:56:24,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:24,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:24,756 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:24,757 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:24,757 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:56:24,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2018-11-28 23:56:24,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2018-11-28 23:56:24,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:24,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:24,769 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:24,769 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:24,777 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);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(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25); 17#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 20#L65true 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; 15#L73true main_#t~ret37 := valid_product_#res;main_~tmp~5 := main_#t~ret37;havoc main_#t~ret37; 70#L576true assume 0 != main_~tmp~5; 19#L552true ~methAndRunningLastTime~0 := 0; 9#L460true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L471-1true [2018-11-28 23:56:24,781 INFO L796 eck$LassoCheckResult]: Loop: 10#L471-1true assume !false; 47#L396true assume test_~splverifierCounter~0 < 4; 64#L397true test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 13#L405true assume !(0 != test_~tmp~3); 73#L405-1true test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 72#L415true assume !(0 != test_~tmp___0~1); 52#L415-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 32#L425true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 58#L433-1true assume !(0 != ~pumpRunning~0); 30#L198true assume !(0 != ~systemActive~0); 38#L205true havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 51#L137true __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 7#L471true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 10#L471-1true [2018-11-28 23:56:24,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 23:56:24,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:24,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:24,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:24,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:24,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:25,075 INFO L82 PathProgramCache]: Analyzing trace with hash 12142292, now seen corresponding path program 1 times [2018-11-28 23:56:25,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:25,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:25,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:25,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:56:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:56:25,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:56:25,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:56:25,141 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:56:25,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:56:25,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:56:25,160 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2018-11-28 23:56:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:56:25,285 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2018-11-28 23:56:25,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:56:25,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2018-11-28 23:56:25,294 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2018-11-28 23:56:25,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2018-11-28 23:56:25,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2018-11-28 23:56:25,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2018-11-28 23:56:25,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2018-11-28 23:56:25,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:56:25,307 INFO L705 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2018-11-28 23:56:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2018-11-28 23:56:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2018-11-28 23:56:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-28 23:56:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2018-11-28 23:56:25,351 INFO L728 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2018-11-28 23:56:25,351 INFO L608 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2018-11-28 23:56:25,352 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:56:25,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2018-11-28 23:56:25,355 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2018-11-28 23:56:25,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:56:25,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:56:25,357 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:25,357 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:56:25,357 INFO L794 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);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(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25); 268#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 269#L65 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; 265#L73 main_#t~ret37 := valid_product_#res;main_~tmp~5 := main_#t~ret37;havoc main_#t~ret37; 266#L576 assume 0 != main_~tmp~5; 270#L552 ~methAndRunningLastTime~0 := 0; 253#L460 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 254#L471-1 [2018-11-28 23:56:25,357 INFO L796 eck$LassoCheckResult]: Loop: 254#L471-1 assume !false; 322#L396 assume test_~splverifierCounter~0 < 4; 305#L397 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 260#L405 assume !(0 != test_~tmp~3); 262#L405-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 311#L415 assume !(0 != test_~tmp___0~1); 246#L415-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 284#L425 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 286#L433-1 assume !(0 != ~pumpRunning~0); 282#L198 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 283#L230 assume !(0 != ~pumpRunning~0); 328#L205 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 327#L137 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 325#L471 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 254#L471-1 [2018-11-28 23:56:25,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 23:56:25,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:25,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:25,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:25,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash 349417953, now seen corresponding path program 1 times [2018-11-28 23:56:25,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:25,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:25,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,512 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:56:25,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:56:25,539 INFO L82 PathProgramCache]: Analyzing trace with hash 411805863, now seen corresponding path program 1 times [2018-11-28 23:56:25,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:56:25,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:56:25,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:56:25,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:56:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:56:25,903 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-11-28 23:56:26,021 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-11-28 23:56:31,440 WARN L180 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 23:56:33,276 WARN L180 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 23:56:33,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:56:33 BoogieIcfgContainer [2018-11-28 23:56:33,328 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:56:33,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:56:33,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:56:33,330 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:56:33,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:24" (3/4) ... [2018-11-28 23:56:33,334 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:56:33,394 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:56:33,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:56:33,395 INFO L168 Benchmark]: Toolchain (without parser) took 10888.61 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 952.7 MB in the beginning and 972.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 287.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:33,397 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-28 23:56:33,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:33,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.38 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. [2018-11-28 23:56:33,399 INFO L168 Benchmark]: Boogie Preprocessor took 43.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:56:33,400 INFO L168 Benchmark]: RCFGBuilder took 1206.09 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: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:33,400 INFO L168 Benchmark]: BuchiAutomizer took 8708.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 975.1 MB in the end (delta: 103.9 MB). Peak memory consumption was 335.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:33,402 INFO L168 Benchmark]: Witness Printer took 65.26 ms. Allocated memory is still 1.3 GB. Free memory was 975.1 MB in the beginning and 972.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:56:33,407 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 784.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.38 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 43.31 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 1206.09 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: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8708.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.1 GB in the beginning and 975.1 MB in the end (delta: 103.9 MB). Peak memory consumption was 335.8 MB. Max. memory is 11.5 GB. * Witness Printer took 65.26 ms. Allocated memory is still 1.3 GB. Free memory was 975.1 MB in the beginning and 972.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 8.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 395]: 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=19, NULL=0, NULL=20, NULL=0, NULL=0, retValue_acc=0, NULL=11, methaneLevelCritical=0, NULL=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bbb80a3=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=39, NULL=0, NULL=26, tmp___1=0, NULL=8, NULL=15, NULL=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1507d08d=0, NULL=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@496cabc8=0, NULL=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dac8317=56, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=35, NULL=40, retValue_acc=0, NULL=0, NULL=38, NULL=0, NULL=0, NULL=0, NULL=24, \result=1, head=0, pumpRunning=0, NULL=28, \result=0, NULL=16, NULL=0, NULL=36, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75560b25=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b8581a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b0ff18b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f18912c=0, NULL=42, NULL=37, retValue_acc=1, tmp___2=56, tmp___0=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=23, NULL=34, tmp=0, NULL=33, head=0, NULL=17, NULL=12, tmp=0, NULL=43} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L454] int methAndRunningLastTime ; [L493] int cleanupTimeShifts = 4; [L759] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L567] int retValue_acc ; [L568] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L574] tmp = valid_product() [L576] COND TRUE \read(tmp) [L459] methAndRunningLastTime = 0 [L386] int splverifierCounter ; [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L390] int tmp___2 ; [L393] splverifierCounter = 0 Loop: [L395] COND TRUE 1 [L397] COND TRUE splverifierCounter < 4 [L403] tmp = __VERIFIER_nondet_int() [L405] COND FALSE !(\read(tmp)) [L413] tmp___0 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___0)) [L423] tmp___2 = __VERIFIER_nondet_int() [L425] COND TRUE \read(tmp___2) [L379] systemActive = 1 [L198] COND FALSE !(\read(pumpRunning)) [L205] COND TRUE \read(systemActive) [L227] int tmp ; [L230] COND FALSE !(\read(pumpRunning)) [L464] int tmp ; [L465] int tmp___0 ; [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L469] tmp = isMethaneLevelCritical() [L471] COND FALSE !(\read(tmp)) [L487] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...