./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec4_product20_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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_spec4_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 14f022cf7e99461a69af1dfadf53c6fdf3d4a870 ........................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:59:13,760 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:59:13,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:59:13,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:59:13,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:59:13,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:59:13,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:59:13,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:59:13,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:59:13,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:59:13,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:59:13,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:59:13,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:59:13,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:59:13,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:59:13,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:59:13,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:59:13,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:59:13,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:59:13,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:59:13,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:59:13,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:59:13,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:59:13,797 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:59:13,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:59:13,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:59:13,799 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:59:13,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:59:13,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:59:13,803 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:59:13,803 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:59:13,804 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:59:13,804 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:59:13,804 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:59:13,805 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:59:13,806 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:59:13,806 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:59:13,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:59:13,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:59:13,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:59:13,826 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:59:13,826 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:59:13,826 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:59:13,826 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:59:13,826 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:59:13,827 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:59:13,827 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:59:13,827 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:59:13,827 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:59:13,827 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:59:13,827 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:59:13,828 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:59:13,829 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:59:13,829 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:59:13,829 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:59:13,829 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:59:13,829 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:59:13,830 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:59:13,830 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:59:13,830 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:59:13,830 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:59:13,830 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:59:13,830 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:59:13,831 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:59:13,832 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 -> 14f022cf7e99461a69af1dfadf53c6fdf3d4a870 [2018-11-28 23:59:13,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:59:13,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:59:13,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:59:13,895 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:59:13,896 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:59:13,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec4_product20_true-unreach-call_false-termination.cil.c [2018-11-28 23:59:13,953 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a570483db/5f267c2ce6f04e6a9a6d25633442543a/FLAG41fa368e0 [2018-11-28 23:59:14,469 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:59:14,470 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec4_product20_true-unreach-call_false-termination.cil.c [2018-11-28 23:59:14,485 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a570483db/5f267c2ce6f04e6a9a6d25633442543a/FLAG41fa368e0 [2018-11-28 23:59:14,759 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a570483db/5f267c2ce6f04e6a9a6d25633442543a [2018-11-28 23:59:14,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:59:14,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:59:14,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:59:14,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:59:14,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:59:14,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:59:14" (1/1) ... [2018-11-28 23:59:14,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b017bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:14, skipping insertion in model container [2018-11-28 23:59:14,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:59:14" (1/1) ... [2018-11-28 23:59:14,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:59:14,851 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:59:15,270 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:59:15,293 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:59:15,402 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:59:15,542 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:59:15,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15 WrapperNode [2018-11-28 23:59:15,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:59:15,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:59:15,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:59:15,544 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:59:15,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:59:15,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:59:15,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:59:15,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:59:15,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (1/1) ... [2018-11-28 23:59:15,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:59:15,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:59:15,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:59:15,727 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:59:15,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (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 [2018-11-28 23:59:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:59:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:59:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:59:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:59:16,797 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:59:16,798 INFO L280 CfgBuilder]: Removed 102 assue(true) statements. [2018-11-28 23:59:16,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:59:16 BoogieIcfgContainer [2018-11-28 23:59:16,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:59:16,799 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:59:16,800 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:59:16,803 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:59:16,804 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:59:16,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:59:14" (1/3) ... [2018-11-28 23:59:16,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d5427f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:59:16, skipping insertion in model container [2018-11-28 23:59:16,805 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:59:16,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:59:15" (2/3) ... [2018-11-28 23:59:16,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d5427f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:59:16, skipping insertion in model container [2018-11-28 23:59:16,806 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:59:16,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:59:16" (3/3) ... [2018-11-28 23:59:16,808 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product20_true-unreach-call_false-termination.cil.c [2018-11-28 23:59:16,861 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:59:16,862 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:59:16,862 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:59:16,862 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:59:16,862 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:59:16,862 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:59:16,863 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:59:16,863 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:59:16,863 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:59:16,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2018-11-28 23:59:16,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2018-11-28 23:59:16,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:59:16,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:59:16,922 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:59:16,922 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:59:16,922 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:59:16,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2018-11-28 23:59:16,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2018-11-28 23:59:16,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:59:16,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:59:16,931 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:59:16,931 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:59:16,937 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 17#L-1true havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 22#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; 16#L73true main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 28#L259true assume 0 != main_~tmp~0; 53#L235true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 74#L657-1true [2018-11-28 23:59:16,938 INFO L796 eck$LassoCheckResult]: Loop: 74#L657-1true assume !false; 64#L865true assume test_~splverifierCounter~0 < 4; 8#L866true test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 39#L874true assume !(0 != test_~tmp~7); 19#L874-1true test_~tmp___0~2 := test_#t~nondet69;havoc test_#t~nondet69; 68#L884true assume !(0 != test_~tmp___0~2); 69#L884-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 51#L894true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 75#L902-1true assume !(0 != ~pumpRunning~0); 59#L686true assume !(0 != ~systemActive~0); 66#L693true havoc __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_#t~ret48, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 21#L160true __utac_acc__Specification4_spec__1_#t~ret47 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret47;havoc __utac_acc__Specification4_spec__1_#t~ret47; 71#L657true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 74#L657-1true [2018-11-28 23:59:16,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:59:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 23:59:16,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:59:16,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:59:16,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:16,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:59:16,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:59:17,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2018-11-28 23:59:17,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:59:17,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:59:17,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:59:17,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:59:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:59:17,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:59:17,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:59:17,464 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:59:17,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:59:17,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:59:17,482 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2018-11-28 23:59:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:59:17,611 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2018-11-28 23:59:17,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:59:17,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2018-11-28 23:59:17,620 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2018-11-28 23:59:17,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2018-11-28 23:59:17,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2018-11-28 23:59:17,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2018-11-28 23:59:17,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2018-11-28 23:59:17,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:59:17,634 INFO L705 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2018-11-28 23:59:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2018-11-28 23:59:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2018-11-28 23:59:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-28 23:59:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2018-11-28 23:59:17,674 INFO L728 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2018-11-28 23:59:17,674 INFO L608 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2018-11-28 23:59:17,674 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:59:17,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2018-11-28 23:59:17,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2018-11-28 23:59:17,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:59:17,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:59:17,678 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:59:17,678 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:59:17,679 INFO L794 eck$LassoCheckResult]: Stem: 275#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 246#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 247#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; 244#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 245#L259 assume 0 != main_~tmp~0; 260#L235 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 243#L657-1 [2018-11-28 23:59:17,679 INFO L796 eck$LassoCheckResult]: Loop: 243#L657-1 assume !false; 299#L865 assume test_~splverifierCounter~0 < 4; 308#L866 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 307#L874 assume !(0 != test_~tmp~7); 305#L874-1 test_~tmp___0~2 := test_#t~nondet69;havoc test_#t~nondet69; 295#L884 assume !(0 != test_~tmp___0~2); 284#L884-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 303#L894 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 286#L902-1 assume !(0 != ~pumpRunning~0); 230#L686 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 277#L718 assume !(0 != ~pumpRunning~0); 278#L693 havoc __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_#t~ret48, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 312#L160 __utac_acc__Specification4_spec__1_#t~ret47 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret47;havoc __utac_acc__Specification4_spec__1_#t~ret47; 297#L657 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 243#L657-1 [2018-11-28 23:59:17,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:59:17,680 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 23:59:17,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:59:17,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:59:17,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:59:17,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:59:17,825 INFO L82 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2018-11-28 23:59:17,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:59:17,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:59:17,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,827 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:59:17,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:59:17,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2018-11-28 23:59:17,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:59:17,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:59:17,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:59:17,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:59:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:59:18,293 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-11-28 23:59:18,429 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-28 23:59:24,595 WARN L180 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 23:59:27,199 WARN L180 SmtUtils]: Spent 2.60 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 23:59:27,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:59:27 BoogieIcfgContainer [2018-11-28 23:59:27,278 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:59:27,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:59:27,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:59:27,278 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:59:27,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:59:16" (3/4) ... [2018-11-28 23:59:27,283 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:59:27,344 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:59:27,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:59:27,345 INFO L168 Benchmark]: Toolchain (without parser) took 12581.31 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.8 MB). Free memory was 944.6 MB in the beginning and 975.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 268.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:59:27,347 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:59:27,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:59:27,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:59:27,350 INFO L168 Benchmark]: Boogie Preprocessor took 73.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:59:27,350 INFO L168 Benchmark]: RCFGBuilder took 1071.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:59:27,351 INFO L168 Benchmark]: BuchiAutomizer took 10478.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 148.9 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 107.2 MB). Peak memory consumption was 343.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:59:27,352 INFO L168 Benchmark]: Witness Printer took 66.36 ms. Allocated memory is still 1.3 GB. Free memory was 978.2 MB in the beginning and 975.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:59:27,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 776.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1071.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 10478.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 148.9 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 107.2 MB). Peak memory consumption was 343.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.36 ms. Allocated memory is still 1.3 GB. Free memory was 978.2 MB in the beginning and 975.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 10.0s. 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 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 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: 864]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=27, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=16, NULL=23, methaneLevelCritical=0, NULL=31, NULL=12, NULL=38, NULL=0, tmp=0, NULL=14, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=39, cleanupTimeShifts=4, NULL=20, NULL=37, NULL=24, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a4ca9d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f5f2a9a=0, NULL=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61c660a5=0, NULL=0, NULL=29, NULL=0, NULL=0, NULL=26, NULL=0, NULL=0, retValue_acc=1, NULL=33, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=40, NULL=22, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eac228a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66fe9427=0, NULL=0, NULL=42, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15b4d1fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13dd2428=56, tmp=1, retValue_acc=1, tmp___2=56, tmp___0=0, NULL=15, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136a5ab7=0, NULL=34, head=0, tmp=0, NULL=36, NULL=0, NULL=0, NULL=28, NULL=17, NULL=18, NULL=19} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L174] int cleanupTimeShifts = 4; [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L679] int pumpRunning = 0; [L680] int systemActive = 1; [L250] int retValue_acc ; [L251] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L257] tmp = valid_product() [L259] COND TRUE \read(tmp) [L855] int splverifierCounter ; [L856] int tmp ; [L857] int tmp___0 ; [L858] int tmp___1 ; [L859] int tmp___2 ; [L862] splverifierCounter = 0 Loop: [L864] COND TRUE 1 [L866] COND TRUE splverifierCounter < 4 [L872] tmp = __VERIFIER_nondet_int() [L874] COND FALSE !(\read(tmp)) [L882] tmp___0 = __VERIFIER_nondet_int() [L884] COND FALSE !(\read(tmp___0)) [L892] tmp___2 = __VERIFIER_nondet_int() [L894] COND TRUE \read(tmp___2) [L849] systemActive = 1 [L686] COND FALSE !(\read(pumpRunning)) [L693] COND TRUE \read(systemActive) [L715] int tmp ; [L718] COND FALSE !(\read(pumpRunning)) [L650] int tmp ; [L651] int tmp___0 ; [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L655] tmp = getWaterLevel() [L657] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...