./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 ../sv-benchmarks/c/product-lines/minepump_spec1_product30.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 1d0026e76f5b8e958e588041cb7bf523794c6674 ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-8bd4bc6 [2020-07-29 02:26:53,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:26:53,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:26:53,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:26:53,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:26:53,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:26:53,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:26:53,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:26:53,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:26:53,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:26:53,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:26:53,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:26:53,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:26:53,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:26:53,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:26:53,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:26:53,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:26:53,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:26:53,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:26:53,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:26:53,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:26:53,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:26:53,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:26:53,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:26:53,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:26:53,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:26:53,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:26:53,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:26:53,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:26:53,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:26:53,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:26:53,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:26:53,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:26:53,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:26:53,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:26:53,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:26:53,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:26:53,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:26:53,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:26:53,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:26:53,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:26:53,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:26:53,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:26:53,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:26:53,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:26:53,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:26:53,389 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:26:53,389 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:26:53,389 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:26:53,390 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:26:53,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:26:53,390 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:26:53,390 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:26:53,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:26:53,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:26:53,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:26:53,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:26:53,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:26:53,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:26:53,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:26:53,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:26:53,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:26:53,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:26:53,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:26:53,394 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:26:53,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:26:53,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:26:53,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:26:53,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:26:53,395 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:26:53,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:26:53,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:26:53,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:26:53,396 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:26:53,397 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:26:53,398 INFO L138 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 -> 1d0026e76f5b8e958e588041cb7bf523794c6674 [2020-07-29 02:26:53,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:26:53,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:26:53,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:26:53,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:26:53,753 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:26:53,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2020-07-29 02:26:53,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf36dab7/206e1ddb926e44b795cff89e53cbb817/FLAG6216a903e [2020-07-29 02:26:54,328 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:26:54,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2020-07-29 02:26:54,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf36dab7/206e1ddb926e44b795cff89e53cbb817/FLAG6216a903e [2020-07-29 02:26:54,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf36dab7/206e1ddb926e44b795cff89e53cbb817 [2020-07-29 02:26:54,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:26:54,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:26:54,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:26:54,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:26:54,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:26:54,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:26:54" (1/1) ... [2020-07-29 02:26:54,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c45776f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:54, skipping insertion in model container [2020-07-29 02:26:54,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:26:54" (1/1) ... [2020-07-29 02:26:54,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:26:54,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:26:55,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:26:55,222 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:26:55,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:26:55,386 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:26:55,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55 WrapperNode [2020-07-29 02:26:55,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:26:55,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:26:55,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:26:55,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:26:55,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:26:55,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:26:55,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:26:55,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:26:55,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (1/1) ... [2020-07-29 02:26:55,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:26:55,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:26:55,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:26:55,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:26:55,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (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 [2020-07-29 02:26:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:26:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:26:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:26:55,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:26:57,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:26:57,053 INFO L295 CfgBuilder]: Removed 158 assume(true) statements. [2020-07-29 02:26:57,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:26:57 BoogieIcfgContainer [2020-07-29 02:26:57,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:26:57,061 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:26:57,062 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:26:57,065 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:26:57,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:26:57,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:26:54" (1/3) ... [2020-07-29 02:26:57,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b085d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:26:57, skipping insertion in model container [2020-07-29 02:26:57,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:26:57,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:26:55" (2/3) ... [2020-07-29 02:26:57,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b085d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:26:57, skipping insertion in model container [2020-07-29 02:26:57,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:26:57,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:26:57" (3/3) ... [2020-07-29 02:26:57,074 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2020-07-29 02:26:57,135 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:26:57,135 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:26:57,135 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:26:57,136 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:26:57,136 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:26:57,136 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:26:57,136 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:26:57,136 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:26:57,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2020-07-29 02:26:57,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-07-29 02:26:57,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:26:57,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:26:57,217 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:26:57,218 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:26:57,218 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:26:57,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2020-07-29 02:26:57,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-07-29 02:26:57,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:26:57,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:26:57,234 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:26:57,234 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:26:57,241 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 6#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 33#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 60#L540true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 62#L130true assume 0 != main_~tmp~0; 9#L103true havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 96#L864-1true [2020-07-29 02:26:57,241 INFO L796 eck$LassoCheckResult]: Loop: 96#L864-1true assume !false; 15#L893true assume test_~splverifierCounter~0 < 4; 98#L894true test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 103#L902true assume !(0 != test_~tmp~9); 104#L902-1true test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 47#L912true assume !(0 != test_~tmp___0~2); 51#L912-1true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 85#L922true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 93#L930-2true assume !(0 != ~pumpRunning~0); 97#L660true assume !(0 != ~systemActive~0); 46#L667true havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 19#L593-1true __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 94#L864true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 96#L864-1true [2020-07-29 02:26:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:26:57,248 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:26:57,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:26:57,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559107713] [2020-07-29 02:26:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:26:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:57,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:57,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:57,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:26:57,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:26:57,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2020-07-29 02:26:57,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:26:57,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820094340] [2020-07-29 02:26:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:26:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:26:57,832 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#true} assume !false; {108#true} is VALID [2020-07-29 02:26:57,832 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} assume test_~splverifierCounter~0 < 4; {108#true} is VALID [2020-07-29 02:26:57,833 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; {108#true} is VALID [2020-07-29 02:26:57,834 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#true} assume !(0 != test_~tmp~9); {108#true} is VALID [2020-07-29 02:26:57,834 INFO L280 TraceCheckUtils]: 4: Hoare triple {108#true} test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; {108#true} is VALID [2020-07-29 02:26:57,835 INFO L280 TraceCheckUtils]: 5: Hoare triple {108#true} assume !(0 != test_~tmp___0~2); {108#true} is VALID [2020-07-29 02:26:57,835 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#true} test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; {108#true} is VALID [2020-07-29 02:26:57,837 INFO L280 TraceCheckUtils]: 7: Hoare triple {108#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {110#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:26:57,838 INFO L280 TraceCheckUtils]: 8: Hoare triple {110#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {110#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:26:57,840 INFO L280 TraceCheckUtils]: 9: Hoare triple {110#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {109#false} is VALID [2020-07-29 02:26:57,840 INFO L280 TraceCheckUtils]: 10: Hoare triple {109#false} havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {109#false} is VALID [2020-07-29 02:26:57,841 INFO L280 TraceCheckUtils]: 11: Hoare triple {109#false} __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; {109#false} is VALID [2020-07-29 02:26:57,841 INFO L280 TraceCheckUtils]: 12: Hoare triple {109#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); {109#false} is VALID [2020-07-29 02:26:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:26:57,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820094340] [2020-07-29 02:26:57,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:26:57,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:26:57,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622185065] [2020-07-29 02:26:57,855 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:26:57,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:26:57,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:26:57,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:26:57,877 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 3 states. [2020-07-29 02:26:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:26:58,176 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2020-07-29 02:26:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:26:58,178 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:26:58,208 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:26:58,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2020-07-29 02:26:58,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-07-29 02:26:58,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2020-07-29 02:26:58,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2020-07-29 02:26:58,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2020-07-29 02:26:58,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2020-07-29 02:26:58,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:26:58,235 INFO L688 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:26:58,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2020-07-29 02:26:58,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-07-29 02:26:58,275 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:26:58,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:26:58,276 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:26:58,278 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:26:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:26:58,285 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2020-07-29 02:26:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:26:58,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:26:58,289 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:26:58,289 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 95 states and 135 transitions. [2020-07-29 02:26:58,290 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 95 states and 135 transitions. [2020-07-29 02:26:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:26:58,296 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2020-07-29 02:26:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:26:58,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:26:58,298 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:26:58,299 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:26:58,299 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:26:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-29 02:26:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2020-07-29 02:26:58,307 INFO L711 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:26:58,307 INFO L591 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:26:58,307 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:26:58,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:26:58,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-07-29 02:26:58,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:26:58,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:26:58,312 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:26:58,312 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:26:58,313 INFO L794 eck$LassoCheckResult]: Stem: 256#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 220#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 221#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 295#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 307#L130 assume 0 != main_~tmp~0; 236#L103 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 237#L864-1 [2020-07-29 02:26:58,313 INFO L796 eck$LassoCheckResult]: Loop: 237#L864-1 assume !false; 257#L893 assume test_~splverifierCounter~0 < 4; 258#L894 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 297#L902 assume !(0 != test_~tmp~9); 281#L902-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 302#L912 assume !(0 != test_~tmp___0~2); 303#L912-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 271#L922 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 272#L930-2 assume !(0 != ~pumpRunning~0); 233#L660 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 278#L718 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 253#L692-1 assume !(0 != ~pumpRunning~0); 248#L667 havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 267#L593-1 __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 268#L864 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 237#L864-1 [2020-07-29 02:26:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:26:58,314 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:26:58,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:26:58,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504160399] [2020-07-29 02:26:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:26:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,456 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:26:58,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:26:58,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2020-07-29 02:26:58,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:26:58,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016321740] [2020-07-29 02:26:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:26:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:26:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:26:58,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2020-07-29 02:26:58,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:26:58,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619008007] [2020-07-29 02:26:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:26:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:26:58,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:26:58,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:27:55,941 WARN L193 SmtUtils]: Spent 57.13 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:28:41,063 WARN L193 SmtUtils]: Spent 44.77 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:28:41,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:28:41 BoogieIcfgContainer [2020-07-29 02:28:41,320 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:28:41,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:28:41,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:28:41,321 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:28:41,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:26:57" (3/4) ... [2020-07-29 02:28:41,325 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:28:41,408 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:28:41,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:28:41,412 INFO L168 Benchmark]: Toolchain (without parser) took 106774.62 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 254.3 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -43.5 MB). Peak memory consumption was 210.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:28:41,413 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:28:41,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:28:41,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:28:41,416 INFO L168 Benchmark]: Boogie Preprocessor took 69.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:28:41,418 INFO L168 Benchmark]: RCFGBuilder took 1508.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 147.7 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:28:41,424 INFO L168 Benchmark]: BuchiAutomizer took 104259.28 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 903.6 MB in the beginning and 1.0 GB in the end (delta: -100.1 MB). Peak memory consumption was 324.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:28:41,426 INFO L168 Benchmark]: Witness Printer took 86.70 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:28:41,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 746.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1508.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 147.7 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 104259.28 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 903.6 MB in the beginning and 1.0 GB in the end (delta: -100.1 MB). Peak memory consumption was 324.0 MB. Max. memory is 11.5 GB. * Witness Printer took 86.70 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 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 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 104.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 103.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 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: 892]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28641} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=28641, NULL=28652, NULL=0, NULL=0, NULL=0, NULL=28650, NULL=0, NULL=28661, NULL=28658, methaneLevelCritical=0, NULL=28662, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45578e23=0, tmp___1=0, tmp=0, NULL=28651, NULL=28648, tmp___0=0, NULL=28643, NULL=28663, cleanupTimeShifts=4, NULL=28646, NULL=28653, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=28659, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26b8f6eb=0, NULL=28660, NULL=0, NULL=0, NULL=28655, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=28649, NULL=28665, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fa564dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34bb54d4=0, NULL=0, NULL=28656, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1148d8d2=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@262771a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13099eff=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15487517=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66ff0dab=0, NULL=28647, tmp=0, tmp___2=51, tmp___0=0, NULL=28664, splverifierCounter=0, \result=0, head=0, NULL=0, tmp=0, NULL=28666, NULL=0, NULL=28642, NULL=0, NULL=28645, NULL=0, NULL=0, NULL=28644, NULL=28657, NULL=28654, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L550] int waterLevel = 1; [L551] int methaneLevelCritical = 0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L883] int splverifierCounter ; [L884] int tmp ; [L885] int tmp___0 ; [L886] int tmp___1 ; [L887] int tmp___2 ; [L890] splverifierCounter = 0 Loop: [L892] COND TRUE 1 [L894] COND TRUE splverifierCounter < 4 [L900] tmp = __VERIFIER_nondet_int() [L902] COND FALSE !(\read(tmp)) [L910] tmp___0 = __VERIFIER_nondet_int() [L912] COND FALSE !(\read(tmp___0)) [L920] tmp___2 = __VERIFIER_nondet_int() [L922] COND TRUE \read(tmp___2) [L851] systemActive = 1 [L660] COND FALSE !(\read(pumpRunning)) [L667] COND TRUE \read(systemActive) [L715] int tmp ; [L718] COND FALSE !(\read(pumpRunning)) [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L857] int tmp ; [L858] int tmp___0 ; [L589] int retValue_acc ; [L592] retValue_acc = methaneLevelCritical [L593] return (retValue_acc); [L862] tmp = isMethaneLevelCritical() [L864] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...