./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec2_product20_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec2_product20_true-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00a34716abd5fee4f4fa0d0743ef9f6cbdb65813 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 23:38:00,795 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:38:00,797 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:38:00,811 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:38:00,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:38:00,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:38:00,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:38:00,816 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:38:00,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:38:00,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:38:00,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:38:00,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:38:00,822 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:38:00,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:38:00,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:38:00,825 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:38:00,826 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:38:00,828 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:38:00,831 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:38:00,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:38:00,834 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:38:00,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:38:00,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:38:00,842 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:38:00,844 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:38:00,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:38:00,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:38:00,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:38:00,852 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:38:00,853 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:38:00,853 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:38:00,853 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:38:00,854 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:38:00,854 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:38:00,855 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:38:00,855 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:38:00,856 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:38:00,889 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:38:00,890 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:38:00,892 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:38:00,893 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:38:00,893 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:38:00,893 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:38:00,894 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:38:00,894 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:38:00,894 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:38:00,894 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:38:00,894 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:38:00,894 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:38:00,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:38:00,896 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:38:00,900 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:38:00,900 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:38:00,901 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:38:00,901 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:38:00,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:38:00,901 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:38:00,902 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:38:00,904 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:38:00,905 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00a34716abd5fee4f4fa0d0743ef9f6cbdb65813 [2019-01-01 23:38:00,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:38:00,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:38:00,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:38:00,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:38:00,988 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:38:00,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec2_product20_true-unreach-call_false-termination.cil.c [2019-01-01 23:38:01,049 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb93cf58a/8708eea607ca4533ba054eabcd72721d/FLAGb84c4abd9 [2019-01-01 23:38:01,568 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:38:01,569 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec2_product20_true-unreach-call_false-termination.cil.c [2019-01-01 23:38:01,580 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb93cf58a/8708eea607ca4533ba054eabcd72721d/FLAGb84c4abd9 [2019-01-01 23:38:01,828 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb93cf58a/8708eea607ca4533ba054eabcd72721d [2019-01-01 23:38:01,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:38:01,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:38:01,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:38:01,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:38:01,841 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:38:01,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:38:01" (1/1) ... [2019-01-01 23:38:01,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704d4b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:01, skipping insertion in model container [2019-01-01 23:38:01,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:38:01" (1/1) ... [2019-01-01 23:38:01,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:38:01,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:38:02,361 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:38:02,383 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:38:02,582 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:38:02,634 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:38:02,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02 WrapperNode [2019-01-01 23:38:02,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:38:02,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:38:02,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:38:02,636 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:38:02,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:38:02,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:38:02,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:38:02,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:38:02,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (1/1) ... [2019-01-01 23:38:02,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:38:02,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:38:02,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:38:02,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:38:02,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (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 [2019-01-01 23:38:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 23:38:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 23:38:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:38:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:38:04,009 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:38:04,009 INFO L280 CfgBuilder]: Removed 104 assue(true) statements. [2019-01-01 23:38:04,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:38:04 BoogieIcfgContainer [2019-01-01 23:38:04,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:38:04,011 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:38:04,011 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:38:04,014 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:38:04,015 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:38:04,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:38:01" (1/3) ... [2019-01-01 23:38:04,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23e3d7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:38:04, skipping insertion in model container [2019-01-01 23:38:04,017 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:38:04,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:38:02" (2/3) ... [2019-01-01 23:38:04,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23e3d7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:38:04, skipping insertion in model container [2019-01-01 23:38:04,018 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:38:04,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:38:04" (3/3) ... [2019-01-01 23:38:04,020 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product20_true-unreach-call_false-termination.cil.c [2019-01-01 23:38:04,078 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:38:04,079 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:38:04,079 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:38:04,079 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:38:04,079 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:38:04,080 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:38:04,080 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:38:04,080 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:38:04,080 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:38:04,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-01-01 23:38:04,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-01-01 23:38:04,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:38:04,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:38:04,137 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:04,137 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:04,137 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:38:04,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-01-01 23:38:04,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-01-01 23:38:04,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:38:04,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:38:04,145 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:04,146 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:04,152 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1); 11#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 57#L107true 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; 51#L115true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 64#L301true assume 0 != main_~tmp~1; 54#L276true ~methAndRunningLastTime~0 := 0; 42#L49true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 40#L60-1true [2019-01-01 23:38:04,153 INFO L796 eck$LassoCheckResult]: Loop: 40#L60-1true assume !false; 55#L703true assume test_~splverifierCounter~0 < 4; 74#L704true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 78#L712true assume !(0 != test_~tmp~5); 79#L712-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 59#L722true assume !(0 != test_~tmp___0~1); 63#L722-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 30#L732true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L740-1true assume !(0 != ~pumpRunning~0); 70#L770true assume !(0 != ~systemActive~0); 56#L777true havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 25#L169true __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 45#L60true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 40#L60-1true [2019-01-01 23:38:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:38:04,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-01-01 23:38:04,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:38:04,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:38:04,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:04,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:38:04,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:38:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash 12142292, now seen corresponding path program 1 times [2019-01-01 23:38:04,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:38:04,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:38:04,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:04,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:38:04,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:38:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:38:04,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:38:04,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:38:04,997 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:38:05,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 23:38:05,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 23:38:05,020 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2019-01-01 23:38:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:38:05,115 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2019-01-01 23:38:05,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 23:38:05,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2019-01-01 23:38:05,125 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2019-01-01 23:38:05,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2019-01-01 23:38:05,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2019-01-01 23:38:05,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-01-01 23:38:05,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2019-01-01 23:38:05,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:38:05,138 INFO L705 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2019-01-01 23:38:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2019-01-01 23:38:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2019-01-01 23:38:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-01-01 23:38:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2019-01-01 23:38:05,187 INFO L728 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2019-01-01 23:38:05,187 INFO L608 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2019-01-01 23:38:05,188 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:38:05,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2019-01-01 23:38:05,191 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2019-01-01 23:38:05,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:38:05,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:38:05,192 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:05,192 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:38:05,193 INFO L794 eck$LassoCheckResult]: Stem: 270#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1); 250#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 251#L107 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; 302#L115 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 303#L301 assume 0 != main_~tmp~1; 306#L276 ~methAndRunningLastTime~0 := 0; 290#L49 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L60-1 [2019-01-01 23:38:05,193 INFO L796 eck$LassoCheckResult]: Loop: 255#L60-1 assume !false; 289#L703 assume test_~splverifierCounter~0 < 4; 307#L704 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 368#L712 assume !(0 != test_~tmp~5); 324#L712-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 325#L722 assume !(0 != test_~tmp___0~1); 312#L722-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 277#L732 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 279#L740-1 assume !(0 != ~pumpRunning~0); 282#L770 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 292#L802 assume !(0 != ~pumpRunning~0); 294#L777 havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 268#L169 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 269#L60 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 255#L60-1 [2019-01-01 23:38:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:38:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-01-01 23:38:05,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:38:05,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:38:05,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:38:05,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:05,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:38:05,513 INFO L82 PathProgramCache]: Analyzing trace with hash 349417953, now seen corresponding path program 1 times [2019-01-01 23:38:05,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:38:05,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:38:05,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,514 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:38:05,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:38:05,533 INFO L82 PathProgramCache]: Analyzing trace with hash 411805863, now seen corresponding path program 1 times [2019-01-01 23:38:05,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:38:05,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:38:05,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:38:05,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:38:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:38:06,169 WARN L181 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-01-01 23:38:06,291 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-01-01 23:38:38,213 WARN L181 SmtUtils]: Spent 31.91 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-01-01 23:38:53,463 WARN L181 SmtUtils]: Spent 15.24 s on a formula simplification that was a NOOP. DAG size: 451 [2019-01-01 23:38:53,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:38:53 BoogieIcfgContainer [2019-01-01 23:38:53,578 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:38:53,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:38:53,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:38:53,578 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:38:53,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:38:04" (3/4) ... [2019-01-01 23:38:53,587 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 23:38:53,686 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 23:38:53,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:38:53,689 INFO L168 Benchmark]: Toolchain (without parser) took 51856.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -117.9 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2019-01-01 23:38:53,693 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:38:53,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2019-01-01 23:38:53,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:38:53,698 INFO L168 Benchmark]: Boogie Preprocessor took 74.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:38:53,699 INFO L168 Benchmark]: RCFGBuilder took 1187.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. [2019-01-01 23:38:53,699 INFO L168 Benchmark]: BuchiAutomizer took 49566.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -29.3 MB). Peak memory consumption was 425.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:38:53,701 INFO L168 Benchmark]: Witness Printer took 109.72 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. [2019-01-01 23:38:53,706 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 800.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1187.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 49566.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -29.3 MB). Peak memory consumption was 425.1 MB. Max. memory is 11.5 GB. * Witness Printer took 109.72 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 49.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 49.1s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 702]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15950} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-17, NULL=0, NULL=15950, NULL=-7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@720e421=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=-12, NULL=-3, methaneLevelCritical=0, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22e10d36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c9212b7=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d72734=0, NULL=15948, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@edc77a4=0, tmp=0, NULL=-1, NULL=0, NULL=-2, NULL=0, NULL=13782, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d9047a8=0, cleanupTimeShifts=4, NULL=8641, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@684a2e98=0, NULL=-4, NULL=-8, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=-9, NULL=0, NULL=-20, retValue_acc=0, NULL=0, NULL=-6, NULL=-10, NULL=0, NULL=0, NULL=-21, \result=1, head=0, pumpRunning=0, \result=0, NULL=0, NULL=-13, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-15, tmp___0=0, retValue_acc=1, tmp___2=59, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4263e68a=0, splverifierCounter=0, methAndRunningLastTime=0, \result=0, NULL=-18, NULL=-16, head=0, tmp=0, NULL=-19, NULL=0, tmp=0, NULL=15949, NULL=-11} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int methAndRunningLastTime ; [L126] int waterLevel = 1; [L127] int methaneLevelCritical = 0; [L215] int cleanupTimeShifts = 4; [L484] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; [L292] int retValue_acc ; [L293] int tmp ; [L111] int retValue_acc ; [L114] retValue_acc = 1 [L115] return (retValue_acc); [L299] tmp = valid_product() [L301] COND TRUE \read(tmp) [L48] methAndRunningLastTime = 0 [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L933] systemActive = 1 [L770] COND FALSE !(\read(pumpRunning)) [L777] COND TRUE \read(systemActive) [L799] int tmp ; [L802] COND FALSE !(\read(pumpRunning)) [L53] int tmp ; [L54] int tmp___0 ; [L165] int retValue_acc ; [L168] retValue_acc = methaneLevelCritical [L169] return (retValue_acc); [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...