./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product10.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_spec4_product10.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 eac2167e56762050a6cde7d8ccfbf36c5d226056 ............................................................................................................................................................................................................................................................................................................... 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 02:49:08,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:49:08,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:49:08,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:49:08,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:49:08,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:49:08,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:49:08,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:49:08,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:49:08,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:49:08,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:49:08,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:49:08,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:49:08,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:49:08,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:49:08,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:49:08,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:49:08,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:49:08,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:49:08,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:49:08,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:49:08,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:49:08,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:49:08,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:49:08,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:49:08,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:49:08,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:49:08,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:49:08,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:49:08,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:49:08,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:49:08,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:49:08,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:49:08,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:49:08,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:49:08,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:49:08,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:49:08,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:49:08,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:49:08,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:49:08,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:49:08,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:49:08,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:49:08,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:49:08,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:49:08,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:49:08,578 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:49:08,579 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:49:08,580 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:49:08,580 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:49:08,581 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:49:08,581 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:49:08,583 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:49:08,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:49:08,584 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:49:08,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:49:08,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:49:08,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:49:08,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:49:08,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:49:08,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:49:08,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:49:08,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:49:08,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:49:08,592 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:49:08,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:49:08,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:49:08,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:49:08,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:49:08,596 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:49:08,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:49:08,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:49:08,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:49:08,598 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:49:08,600 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:49:08,601 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 -> eac2167e56762050a6cde7d8ccfbf36c5d226056 [2020-07-29 02:49:09,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:49:09,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:49:09,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:49:09,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:49:09,039 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:49:09,039 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-07-29 02:49:09,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4be11f6/3d9bd897647a4a2fa4376a6a4da963f9/FLAG9f0cbeb54 [2020-07-29 02:49:09,776 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:49:09,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-07-29 02:49:09,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4be11f6/3d9bd897647a4a2fa4376a6a4da963f9/FLAG9f0cbeb54 [2020-07-29 02:49:10,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4be11f6/3d9bd897647a4a2fa4376a6a4da963f9 [2020-07-29 02:49:10,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:49:10,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:49:10,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:49:10,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:49:10,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:49:10,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:10,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8781850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10, skipping insertion in model container [2020-07-29 02:49:10,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:10,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:49:10,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:49:10,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:49:10,718 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:49:10,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:49:10,976 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:49:10,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10 WrapperNode [2020-07-29 02:49:10,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:49:10,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:49:10,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:49:10,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:49:10,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:49:11,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:49:11,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:49:11,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:49:11,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (1/1) ... [2020-07-29 02:49:11,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:49:11,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:49:11,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:49:11,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:49:11,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (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 02:49:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:49:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:49:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:49:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:49:12,760 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:49:12,760 INFO L295 CfgBuilder]: Removed 68 assume(true) statements. [2020-07-29 02:49:12,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:49:12 BoogieIcfgContainer [2020-07-29 02:49:12,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:49:12,767 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:49:12,768 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:49:12,772 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:49:12,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:49:12,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:49:10" (1/3) ... [2020-07-29 02:49:12,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24d4f53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:49:12, skipping insertion in model container [2020-07-29 02:49:12,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:49:12,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:49:10" (2/3) ... [2020-07-29 02:49:12,777 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24d4f53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:49:12, skipping insertion in model container [2020-07-29 02:49:12,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:49:12,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:49:12" (3/3) ... [2020-07-29 02:49:12,779 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2020-07-29 02:49:12,843 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:49:12,843 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:49:12,844 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:49:12,844 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:49:12,844 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:49:12,844 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:49:12,845 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:49:12,845 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:49:12,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2020-07-29 02:49:12,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2020-07-29 02:49:12,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:49:12,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:49:12,923 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:49:12,924 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:49:12,924 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:49:12,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2020-07-29 02:49:12,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2020-07-29 02:49:12,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:49:12,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:49:12,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:49:12,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:49:12,943 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(110, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(102, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 3 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(80, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(117, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(109, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(112, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(32, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 22#L856true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 41#L864true main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 26#L534true assume 0 != main_~tmp~4; 55#L507true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L51-1true [2020-07-29 02:49:12,945 INFO L796 eck$LassoCheckResult]: Loop: 9#L51-1true assume !false; 20#L698true assume test_~splverifierCounter~0 < 4; 34#L699true test_~tmp~6 := test_#t~nondet56;havoc test_#t~nondet56; 36#L707true assume !(0 != test_~tmp~6); 38#L707-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 23#L717true assume !(0 != test_~tmp___0~1); 25#L717-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 7#L727true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 16#L735-2true assume !(0 != ~pumpRunning~0); 45#L561true assume 0 != ~systemActive~0; 37#L568true havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 51#L829true __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 11#L51true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 9#L51-1true [2020-07-29 02:49:12,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:49:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:49:12,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:49:12,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933010842] [2020-07-29 02:49:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:49:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,482 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:49:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:49:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1681619226, now seen corresponding path program 1 times [2020-07-29 02:49:13,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:49:13,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346414645] [2020-07-29 02:49:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:49:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,509 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:49:13,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:49:13,512 INFO L82 PathProgramCache]: Analyzing trace with hash 32659712, now seen corresponding path program 1 times [2020-07-29 02:49:13,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:49:13,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448409030] [2020-07-29 02:49:13,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:49:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:49:13,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:49:13,776 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:50:11,673 WARN L193 SmtUtils]: Spent 57.69 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:50:54,430 WARN L193 SmtUtils]: Spent 42.49 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:50:54,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:50:54 BoogieIcfgContainer [2020-07-29 02:50:54,804 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:50:54,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:50:54,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:50:54,805 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:50:54,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:49:12" (3/4) ... [2020-07-29 02:50:54,810 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:50:54,937 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:50:54,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:50:54,940 INFO L168 Benchmark]: Toolchain (without parser) took 104879.34 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:50:54,941 INFO L168 Benchmark]: CDTParser took 0.28 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 02:50:54,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 912.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:50:54,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.45 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. [2020-07-29 02:50:54,943 INFO L168 Benchmark]: Boogie Preprocessor took 50.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:50:54,944 INFO L168 Benchmark]: RCFGBuilder took 1612.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.7 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:50:54,945 INFO L168 Benchmark]: BuchiAutomizer took 102036.57 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 911.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 345.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:50:54,945 INFO L168 Benchmark]: Witness Printer took 133.40 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:50:54,948 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 0.28 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 912.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 123.45 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 50.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1612.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.7 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 102036.57 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 911.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 345.9 MB. Max. memory is 11.5 GB. * Witness Printer took 133.40 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 101.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 101.8s. 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: 697]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28530} State at position 1 is {NULL=0, NULL=0, NULL=50527, NULL=0, NULL=28530, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=50521, NULL=0, methaneLevelCritical=0, NULL=0, NULL=0, NULL=28531, NULL=50524, tmp=0, NULL=0, tmp___1=0, NULL=50531, NULL=50532, NULL=50534, tmp___0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37fb9b11=0, NULL=28537, NULL=50535, NULL=28534, NULL=28535, NULL=50529, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=50518, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@307762fc=0, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ecc924d=0, NULL=0, NULL=50519, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=50526, \result=0, NULL=28532, tmp=1, NULL=0, NULL=0, NULL=0, NULL=50528, retValue_acc=1, NULL=50523, tmp=1, NULL=50533, retValue_acc=1, tmp___2=53, NULL=28536, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6de4b070=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f707250=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6da98b0a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f1197b7=0, head=0, NULL=50536, NULL=0, NULL=0, NULL=50530, NULL=0, NULL=0, NULL=50520, NULL=50522, NULL=50525} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L754] int waterLevel = 1; [L755] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L688] int splverifierCounter ; [L689] int tmp ; [L690] int tmp___0 ; [L691] int tmp___1 ; [L692] int tmp___2 ; [L695] splverifierCounter = 0 Loop: [L697] COND TRUE 1 [L699] COND TRUE splverifierCounter < 4 [L705] tmp = __VERIFIER_nondet_int() [L707] COND FALSE !(\read(tmp)) [L715] tmp___0 = __VERIFIER_nondet_int() [L717] COND FALSE !(\read(tmp___0)) [L725] tmp___2 = __VERIFIER_nondet_int() [L727] COND TRUE \read(tmp___2) [L682] systemActive = 1 [L561] COND FALSE !(\read(pumpRunning)) [L568] COND TRUE \read(systemActive) [L44] int tmp ; [L45] int tmp___0 ; [L825] int retValue_acc ; [L828] retValue_acc = waterLevel [L829] return (retValue_acc); [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...