./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/product-lines/minepump_spec1_product01.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 1765ed2f00a711eb0a5a8db62b018a802d4ab98b ...................................................................................................................................................................................................................................................................................................... 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-f470102 [2019-11-28 20:57:15,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:57:15,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:57:15,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:57:15,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:57:15,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:57:15,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:57:15,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:57:15,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:57:15,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:57:15,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:57:15,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:57:15,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:57:15,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:57:15,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:57:15,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:57:15,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:57:15,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:57:15,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:57:15,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:57:15,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:57:15,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:57:15,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:57:15,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:57:15,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:57:15,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:57:15,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:57:15,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:57:15,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:57:15,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:57:15,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:57:15,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:57:15,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:57:15,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:57:15,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:57:15,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:57:15,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:57:15,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:57:15,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:57:15,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:57:15,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:57:15,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:57:15,467 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:57:15,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:57:15,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:57:15,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:57:15,470 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:57:15,470 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:57:15,471 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:57:15,471 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:57:15,471 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:57:15,471 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:57:15,472 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:57:15,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:57:15,473 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:57:15,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:57:15,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:57:15,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:57:15,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:57:15,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:57:15,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:57:15,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:57:15,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:57:15,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:57:15,475 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:57:15,476 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:57:15,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:57:15,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:57:15,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:57:15,476 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:57:15,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:57:15,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:57:15,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:57:15,478 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:57:15,480 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:57:15,480 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 -> 1765ed2f00a711eb0a5a8db62b018a802d4ab98b [2019-11-28 20:57:15,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:57:15,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:57:15,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:57:15,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:57:15,885 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:57:15,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c [2019-11-28 20:57:15,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93419817c/c110d2e9c653498faa7c54aa674a3590/FLAG9bf0b9dba [2019-11-28 20:57:16,418 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:57:16,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c [2019-11-28 20:57:16,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93419817c/c110d2e9c653498faa7c54aa674a3590/FLAG9bf0b9dba [2019-11-28 20:57:16,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93419817c/c110d2e9c653498faa7c54aa674a3590 [2019-11-28 20:57:16,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:57:16,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:57:16,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:57:16,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:57:16,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:57:16,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:57:16" (1/1) ... [2019-11-28 20:57:16,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c09576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:16, skipping insertion in model container [2019-11-28 20:57:16,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:57:16" (1/1) ... [2019-11-28 20:57:16,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:57:16,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:57:17,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:57:17,207 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:57:17,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:57:17,332 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:57:17,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17 WrapperNode [2019-11-28 20:57:17,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:57:17,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:57:17,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:57:17,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:57:17,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:57:17,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:57:17,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:57:17,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:57:17,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... [2019-11-28 20:57:17,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:57:17,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:57:17,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:57:17,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:57:17,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:57:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:57:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:57:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:57:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:57:18,296 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:57:18,296 INFO L287 CfgBuilder]: Removed 66 assume(true) statements. [2019-11-28 20:57:18,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:18 BoogieIcfgContainer [2019-11-28 20:57:18,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:57:18,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:57:18,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:57:18,302 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:57:18,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:18,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:57:16" (1/3) ... [2019-11-28 20:57:18,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c4970b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:57:18, skipping insertion in model container [2019-11-28 20:57:18,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:18,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:57:17" (2/3) ... [2019-11-28 20:57:18,306 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c4970b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:57:18, skipping insertion in model container [2019-11-28 20:57:18,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:57:18,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:18" (3/3) ... [2019-11-28 20:57:18,308 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product01.cil.c [2019-11-28 20:57:18,361 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:57:18,362 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:57:18,362 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:57:18,362 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:57:18,362 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:57:18,362 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:57:18,363 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:57:18,363 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:57:18,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2019-11-28 20:57:18,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2019-11-28 20:57:18,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:57:18,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:57:18,419 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:57:18,419 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:57:18,420 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:57:18,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2019-11-28 20:57:18,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2019-11-28 20:57:18,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:57:18,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:57:18,425 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:57:18,426 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:57:18,430 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(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.allocOnStack(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.allocOnStack(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.allocOnStack(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);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 11#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; 29#L250true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 55#L258true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 56#L130true assume 0 != main_~tmp~0; 19#L103true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 51#L448-1true [2019-11-28 20:57:18,431 INFO L796 eck$LassoCheckResult]: Loop: 51#L448-1true assume !false; 31#L385true assume test_~splverifierCounter~0 < 4; 44#L386true test_~tmp~1 := test_#t~nondet29;havoc test_#t~nondet29; 9#L394true assume !(0 != test_~tmp~1); 52#L394-1true test_~tmp___0~0 := test_#t~nondet30;havoc test_#t~nondet30; 32#L404true assume !(0 != test_~tmp___0~0); 36#L404-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 25#L414true assume 0 != test_~tmp___2~0; 7#L420-2true assume !(0 != ~pumpRunning~0); 8#L274true assume 0 != ~systemActive~0; 16#L281true havoc __utac_acc__Specification1_spec__1_#t~ret33, __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_~tmp~2, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~2;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 33#L191true __utac_acc__Specification1_spec__1_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~2 := __utac_acc__Specification1_spec__1_#t~ret33;havoc __utac_acc__Specification1_spec__1_#t~ret33; 48#L448true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2); 51#L448-1true [2019-11-28 20:57:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:18,438 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:57:18,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:18,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423575982] [2019-11-28 20:57:18,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:18,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:18,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1682573531, now seen corresponding path program 1 times [2019-11-28 20:57:18,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:18,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726728918] [2019-11-28 20:57:18,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:18,879 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:18,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:57:18,882 INFO L82 PathProgramCache]: Analyzing trace with hash 31705407, now seen corresponding path program 1 times [2019-11-28 20:57:18,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:57:18,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036950611] [2019-11-28 20:57:18,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:57:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:57:19,077 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:57:41,283 WARN L192 SmtUtils]: Spent 22.10 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:57:53,922 WARN L192 SmtUtils]: Spent 12.63 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:57:53,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:57:53 BoogieIcfgContainer [2019-11-28 20:57:53,993 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:57:53,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:57:53,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:57:53,994 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:57:53,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:57:18" (3/4) ... [2019-11-28 20:57:53,998 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:57:54,060 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:57:54,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:57:54,063 INFO L168 Benchmark]: Toolchain (without parser) took 37318.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 242.2 MB). Free memory was 957.7 MB in the beginning and 898.7 MB in the end (delta: 58.9 MB). Peak memory consumption was 301.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:57:54,065 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:57:54,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -84.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:57:54,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:57:54,067 INFO L168 Benchmark]: Boogie Preprocessor took 36.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:57:54,069 INFO L168 Benchmark]: RCFGBuilder took 851.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 988.2 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:57:54,072 INFO L168 Benchmark]: BuchiAutomizer took 35694.39 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 988.2 MB in the beginning and 898.7 MB in the end (delta: 89.4 MB). Peak memory consumption was 366.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:57:54,073 INFO L168 Benchmark]: Witness Printer took 67.48 ms. Allocated memory is still 1.3 GB. Free memory was 898.7 MB in the beginning and 898.7 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 20:57:54,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 588.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -84.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 851.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 988.2 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35694.39 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 988.2 MB in the beginning and 898.7 MB in the end (delta: 89.4 MB). Peak memory consumption was 366.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.48 ms. Allocated memory is still 1.3 GB. Free memory was 898.7 MB in the beginning and 898.7 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 35.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 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: 384]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8644} State at position 1 is {retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=12957, NULL=8652, NULL=0, retValue_acc=0, NULL=8644, NULL=8651, NULL=8646, NULL=8826, methaneLevelCritical=0, NULL=8822, NULL=0, NULL=0, NULL=0, NULL=8654, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=8820, NULL=8655, cleanupTimeShifts=4, tmp=0, NULL=8656, NULL=12955, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=8645, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8650, \result=1, NULL=8653, head=0, pumpRunning=0, tmp=1, NULL=8649, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4383ba65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f1a5100=0, NULL=8648, NULL=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33096741=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e138869=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230aff36=0, retValue_acc=1, NULL=8823, NULL=12954, tmp___2=55, NULL=12958, splverifierCounter=0, \result=0, NULL=8821, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dea1b32=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5398f04a=0, head=0, NULL=0, NULL=0, NULL=12953, NULL=0, NULL=0, NULL=8825, NULL=0, NULL=8824, NULL=8647, NULL=12956} - 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; [L148] int waterLevel = 1; [L149] int methaneLevelCritical = 0; [L266] int pumpRunning = 0; [L267] int systemActive = 1; [L644] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L254] int retValue_acc ; [L257] retValue_acc = 1 [L258] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L375] int splverifierCounter ; [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L379] int tmp___2 ; [L382] splverifierCounter = 0 Loop: [L384] COND TRUE 1 [L386] COND TRUE splverifierCounter < 4 [L392] tmp = __VERIFIER_nondet_int() [L394] COND FALSE !(\read(tmp)) [L402] tmp___0 = __VERIFIER_nondet_int() [L404] COND FALSE !(\read(tmp___0)) [L412] tmp___2 = __VERIFIER_nondet_int() [L414] COND TRUE \read(tmp___2) [L274] COND FALSE !(\read(pumpRunning)) [L281] COND TRUE \read(systemActive) [L441] int tmp ; [L442] int tmp___0 ; [L187] int retValue_acc ; [L190] retValue_acc = methaneLevelCritical [L191] return (retValue_acc); [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...