./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product06.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_spec2_product06.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 2ad80e2d7767134fb761a45d54a404219df99a16 .............................................................................................................................................................................................................................................................................................................................................................. 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 21:00:56,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:00:56,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:00:56,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:00:56,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:00:56,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:00:56,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:00:56,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:00:56,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:00:56,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:00:56,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:00:56,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:00:56,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:00:56,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:00:56,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:00:56,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:00:56,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:00:56,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:00:56,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:00:56,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:00:56,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:00:56,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:00:56,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:00:56,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:00:56,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:00:56,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:00:56,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:00:56,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:00:56,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:00:56,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:00:56,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:00:56,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:00:56,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:00:56,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:00:56,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:00:56,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:00:56,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:00:56,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:00:56,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:00:56,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:00:56,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:00:56,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:00:56,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:00:56,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:00:56,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:00:56,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:00:56,782 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:00:56,783 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:00:56,783 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:00:56,783 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:00:56,784 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:00:56,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:00:56,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:00:56,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:00:56,785 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:00:56,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:00:56,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:00:56,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:00:56,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:00:56,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:00:56,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:00:56,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:00:56,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:00:56,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:00:56,787 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:00:56,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:00:56,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:00:56,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:00:56,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:00:56,789 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:00:56,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:00:56,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:00:56,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:00:56,790 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:00:56,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:00:56,791 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 -> 2ad80e2d7767134fb761a45d54a404219df99a16 [2019-11-28 21:00:57,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:00:57,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:00:57,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:00:57,113 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:00:57,113 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:00:57,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2019-11-28 21:00:57,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b87072913/d217324f895a4da5846324fe5dfc0e30/FLAG69d644208 [2019-11-28 21:00:57,693 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:00:57,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2019-11-28 21:00:57,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b87072913/d217324f895a4da5846324fe5dfc0e30/FLAG69d644208 [2019-11-28 21:00:58,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b87072913/d217324f895a4da5846324fe5dfc0e30 [2019-11-28 21:00:58,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:00:58,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:00:58,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:00:58,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:00:58,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:00:58,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58, skipping insertion in model container [2019-11-28 21:00:58,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:00:58,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:00:58,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:00:58,511 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:00:58,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:00:58,613 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:00:58,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58 WrapperNode [2019-11-28 21:00:58,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:00:58,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:00:58,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:00:58,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:00:58,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:00:58,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:00:58,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:00:58,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:00:58,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (1/1) ... [2019-11-28 21:00:58,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:00:58,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:00:58,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:00:58,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:00:58,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (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 21:00:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:00:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:00:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:00:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:00:59,445 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:00:59,445 INFO L287 CfgBuilder]: Removed 100 assume(true) statements. [2019-11-28 21:00:59,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:00:59 BoogieIcfgContainer [2019-11-28 21:00:59,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:00:59,447 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:00:59,448 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:00:59,451 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:00:59,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:00:59,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:00:58" (1/3) ... [2019-11-28 21:00:59,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d51c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:00:59, skipping insertion in model container [2019-11-28 21:00:59,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:00:59,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:00:58" (2/3) ... [2019-11-28 21:00:59,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d51c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:00:59, skipping insertion in model container [2019-11-28 21:00:59,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:00:59,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:00:59" (3/3) ... [2019-11-28 21:00:59,456 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product06.cil.c [2019-11-28 21:00:59,500 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:00:59,500 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:00:59,501 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:00:59,501 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:00:59,501 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:00:59,501 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:00:59,501 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:00:59,502 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:00:59,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2019-11-28 21:00:59,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:00:59,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:00:59,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:00:59,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:00:59,550 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:00:59,550 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:00:59,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2019-11-28 21:00:59,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:00:59,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:00:59,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:00:59,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:00:59,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:00:59,562 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);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(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(77, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(101, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(116, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(104, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string28.base, #t~string28.offset, 1);call write~init~int(82, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(73, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(84, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 4 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(75, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 23#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 26#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 20#L73true main_#t~ret70 := valid_product_#res;main_~tmp~6 := main_#t~ret70;havoc main_#t~ret70; 35#L878true assume 0 != main_~tmp~6; 62#L854true ~methAndRunningLastTime~0 := 0; 7#L387true havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L398-1true [2019-11-28 21:00:59,563 INFO L796 eck$LassoCheckResult]: Loop: 10#L398-1true assume !false; 63#L94true assume test_~splverifierCounter~0 < 4; 42#L95true test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 39#L103true assume !(0 != test_~tmp~0); 38#L103-1true test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 11#L113true assume !(0 != test_~tmp___0~0); 9#L113-1true test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 59#L123true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 27#L131-2true assume !(0 != ~pumpRunning~0); 36#L165true assume !(0 != ~systemActive~0); 47#L172true havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~2, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~2;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 16#L343-1true __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~2 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 5#L398true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2);~methAndRunningLastTime~0 := 0; 10#L398-1true [2019-11-28 21:00:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:00:59,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:00:59,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:00:59,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433509674] [2019-11-28 21:00:59,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:00:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:00:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:00:59,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:00:59,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:00:59,935 INFO L82 PathProgramCache]: Analyzing trace with hash 3338059, now seen corresponding path program 1 times [2019-11-28 21:00:59,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:00:59,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221435209] [2019-11-28 21:00:59,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:00:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:00:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:00:59,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221435209] [2019-11-28 21:00:59,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:00:59,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:00:59,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140224472] [2019-11-28 21:00:59,995 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:00:59,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:01:00,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:01:00,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:01:00,015 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 3 states. [2019-11-28 21:01:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:01:00,061 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2019-11-28 21:01:00,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:01:00,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 96 transitions. [2019-11-28 21:01:00,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 21:01:00,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2019-11-28 21:01:00,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2019-11-28 21:01:00,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2019-11-28 21:01:00,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2019-11-28 21:01:00,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:01:00,087 INFO L688 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2019-11-28 21:01:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2019-11-28 21:01:00,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-11-28 21:01:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-28 21:01:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2019-11-28 21:01:00,127 INFO L711 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2019-11-28 21:01:00,128 INFO L591 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2019-11-28 21:01:00,128 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:01:00,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2019-11-28 21:01:00,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-28 21:01:00,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:01:00,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:01:00,131 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:00,132 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:00,132 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);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(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(77, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(101, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(116, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(104, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string28.base, #t~string28.offset, 1);call write~init~int(82, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(73, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(84, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 4 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(75, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 182#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 183#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 180#L73 main_#t~ret70 := valid_product_#res;main_~tmp~6 := main_#t~ret70;havoc main_#t~ret70; 181#L878 assume 0 != main_~tmp~6; 197#L854 ~methAndRunningLastTime~0 := 0; 160#L387 havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 153#L398-1 [2019-11-28 21:01:00,132 INFO L796 eck$LassoCheckResult]: Loop: 153#L398-1 assume !false; 165#L94 assume test_~splverifierCounter~0 < 4; 199#L95 test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; 198#L103 assume !(0 != test_~tmp~0); 185#L103-1 test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 166#L113 assume !(0 != test_~tmp___0~0); 161#L113-1 test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 162#L123 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 188#L131-2 assume !(0 != ~pumpRunning~0); 189#L165 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 157#L197 assume !(0 != ~pumpRunning~0); 158#L172 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~2, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~2;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 174#L343-1 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~2 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 151#L398 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2);~methAndRunningLastTime~0 := 0; 153#L398-1 [2019-11-28 21:01:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:00,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:01:00,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:00,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552730238] [2019-11-28 21:01:00,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,289 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 82951361, now seen corresponding path program 1 times [2019-11-28 21:01:00,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:00,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424604891] [2019-11-28 21:01:00,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 145339271, now seen corresponding path program 1 times [2019-11-28 21:01:00,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:00,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600158369] [2019-11-28 21:01:00,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:00,428 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:22,344 WARN L192 SmtUtils]: Spent 21.76 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:01:34,806 WARN L192 SmtUtils]: Spent 12.45 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:01:34,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:01:34 BoogieIcfgContainer [2019-11-28 21:01:34,872 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:01:34,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:01:34,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:01:34,873 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:01:34,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:00:59" (3/4) ... [2019-11-28 21:01:34,877 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:01:34,933 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:01:34,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:01:34,936 INFO L168 Benchmark]: Toolchain (without parser) took 36929.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 269.0 MB). Free memory was 961.7 MB in the beginning and 981.5 MB in the end (delta: -19.8 MB). Peak memory consumption was 249.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,936 INFO L168 Benchmark]: CDTParser took 0.25 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 21:01:34,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -219.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,938 INFO L168 Benchmark]: Boogie Preprocessor took 45.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:01:34,939 INFO L168 Benchmark]: RCFGBuilder took 710.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 60.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,940 INFO L168 Benchmark]: BuchiAutomizer took 35425.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 119.3 MB). Peak memory consumption was 416.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,941 INFO L168 Benchmark]: Witness Printer took 60.86 ms. Allocated memory is still 1.3 GB. Free memory was 989.7 MB in the beginning and 981.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:01:34,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 606.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -219.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 710.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 60.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35425.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 119.3 MB). Peak memory consumption was 416.4 MB. Max. memory is 11.5 GB. * Witness Printer took 60.86 ms. Allocated memory is still 1.3 GB. Free memory was 989.7 MB in the beginning and 981.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 35.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 93 SDtfs, 93 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: 93]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1716} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1734, NULL=1725, NULL=0, NULL=1716, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29e1801a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71db7cde=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51be15d3=0, NULL=1732, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443a4f08=0, retValue_acc=0, NULL=1738, NULL=1740, methaneLevelCritical=0, NULL=1721, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=1727, NULL=1717, cleanupTimeShifts=4, tmp=0, NULL=1722, NULL=1729, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@315d64d3=0, NULL=1737, NULL=0, NULL=1735, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=1719, head=0, pumpRunning=0, NULL=1736, \result=0, NULL=1724, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@105ac01e=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff0dab8=0, NULL=1733, NULL=1739, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36a40269=0, retValue_acc=1, tmp___2=61, tmp___0=0, NULL=1728, NULL=1718, splverifierCounter=0, methAndRunningLastTime=0, \result=0, tmp=0, head=0, NULL=0, NULL=0, NULL=1720, NULL=0, NULL=0, NULL=1726, NULL=1723, NULL=0, NULL=1730, NULL=1731, tmp=0, NULL=1741} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L157] int pumpRunning = 0; [L158] int systemActive = 1; [L300] int waterLevel = 1; [L301] int methaneLevelCritical = 0; [L381] int methAndRunningLastTime ; [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L795] int cleanupTimeShifts = 4; [L869] int retValue_acc ; [L870] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L876] tmp = valid_product() [L878] COND TRUE \read(tmp) [L386] methAndRunningLastTime = 0 [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 Loop: [L93] COND TRUE 1 [L95] COND TRUE splverifierCounter < 4 [L101] tmp = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp)) [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp___0)) [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) [L294] systemActive = 1 [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L391] int tmp ; [L392] int tmp___0 ; [L339] int retValue_acc ; [L342] retValue_acc = methaneLevelCritical [L343] return (retValue_acc); [L396] tmp = isMethaneLevelCritical() [L398] COND FALSE !(\read(tmp)) [L414] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...