./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product26.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 59d087b21d164936324b83c1e291a64a9503c1749575f000c4a0a3b8eb208c6d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:26:25,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:26:25,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:26:25,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:26:25,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:26:25,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:26:25,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:26:25,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:26:25,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:26:25,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:26:25,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:26:25,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:26:25,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:26:25,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:26:25,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:26:25,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:26:25,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:26:25,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:26:25,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:26:25,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:26:25,877 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:26:25,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:26:25,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:26:25,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:26:25,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:26:25,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:26:25,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:26:25,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:26:25,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:26:25,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:26:25,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:26:25,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:26:25,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:26:25,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:26:25,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:26:25,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:26:25,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:26:25,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:26:25,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:26:25,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:26:25,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:26:25,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:26:25,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:26:25,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:26:25,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:26:25,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:26:25,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:26:25,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:26:25,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:26:25,917 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:26:25,917 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:26:25,917 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:26:25,917 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:26:25,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:26:25,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:26:25,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:26:25,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:26:25,920 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:26:25,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:26:25,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:26:25,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:26:25,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:26:25,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:26:25,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:26:25,921 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:26:25,922 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d087b21d164936324b83c1e291a64a9503c1749575f000c4a0a3b8eb208c6d [2022-07-23 15:26:26,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:26:26,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:26:26,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:26:26,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:26:26,178 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:26:26,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2022-07-23 15:26:26,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e86e256/43716d1610af47bca80577e82063bc46/FLAG977f36c7d [2022-07-23 15:26:26,626 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:26:26,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2022-07-23 15:26:26,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e86e256/43716d1610af47bca80577e82063bc46/FLAG977f36c7d [2022-07-23 15:26:27,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e86e256/43716d1610af47bca80577e82063bc46 [2022-07-23 15:26:27,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:26:27,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:26:27,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:27,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:26:27,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:26:27,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29636c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27, skipping insertion in model container [2022-07-23 15:26:27,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:26:27,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:26:27,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14361,14374] [2022-07-23 15:26:27,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:27,366 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:26:27,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14361,14374] [2022-07-23 15:26:27,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:27,451 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:26:27,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27 WrapperNode [2022-07-23 15:26:27,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:27,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:27,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:26:27,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:26:27,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,504 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 51, statements flattened = 413 [2022-07-23 15:26:27,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:27,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:26:27,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:26:27,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:26:27,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:26:27,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:26:27,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:26:27,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:26:27,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (1/1) ... [2022-07-23 15:26:27,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:26:27,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:26:27,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:26:27,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 15:26:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:26:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:26:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:26:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:26:27,652 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:26:27,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:26:28,085 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:26:28,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:26:28,103 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:26:28,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:28 BoogieIcfgContainer [2022-07-23 15:26:28,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:26:28,106 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:26:28,106 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:26:28,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:26:28,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:28,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:26:27" (1/3) ... [2022-07-23 15:26:28,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21f5dd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:28, skipping insertion in model container [2022-07-23 15:26:28,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:28,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:27" (2/3) ... [2022-07-23 15:26:28,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21f5dd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:28, skipping insertion in model container [2022-07-23 15:26:28,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:28,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:28" (3/3) ... [2022-07-23 15:26:28,114 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2022-07-23 15:26:28,159 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:26:28,159 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:26:28,159 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:26:28,159 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:26:28,159 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:26:28,160 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:26:28,160 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:26:28,160 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:26:28,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:28,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:28,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:28,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:28,186 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,186 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,186 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:26:28,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:28,192 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:28,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:28,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:28,193 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,193 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,196 INFO L752 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 30#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 36#L176true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 49#L169true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 71#L184true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 47#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 96#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 53#L851-2true [2022-07-23 15:26:28,197 INFO L754 eck$LassoCheckResult]: Loop: 53#L851-2true assume !false; 15#L852true assume test_~splverifierCounter~0#1 < 4; 32#L853true test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 25#L861true assume !(0 != test_~tmp~7#1); 80#L861-2true test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 85#L871true assume !(0 != test_~tmp___0~1#1); 90#L871-2true test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 87#L881true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 11#L889true assume 0 != test_~tmp___1~0#1; 20#L889-2true assume { :begin_inline_timeShift } true; 40#L670true assume !(0 != ~pumpRunning~0); 6#L670-2true assume !(0 != ~systemActive~0); 109#L677-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 86#L237true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 94#L917true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 70#L923-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 45#L687true assume { :end_inline_timeShift } true; 53#L851-2true [2022-07-23 15:26:28,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:26:28,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212510970] [2022-07-23 15:26:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,323 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:28,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash -86175820, now seen corresponding path program 1 times [2022-07-23 15:26:28,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39613921] [2022-07-23 15:26:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1017857424, now seen corresponding path program 1 times [2022-07-23 15:26:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591942016] [2022-07-23 15:26:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:28,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:28,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591942016] [2022-07-23 15:26:28,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591942016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:28,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:28,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:26:28,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19697274] [2022-07-23 15:26:28,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:28,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:26:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:26:28,685 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:28,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:28,738 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2022-07-23 15:26:28,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 15:26:28,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 134 transitions. [2022-07-23 15:26:28,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-07-23 15:26:28,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 124 transitions. [2022-07-23 15:26:28,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-07-23 15:26:28,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-07-23 15:26:28,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 124 transitions. [2022-07-23 15:26:28,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:28,749 INFO L369 hiAutomatonCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 124 transitions. [2022-07-23 15:26:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-23 15:26:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-07-23 15:26:28,779 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:28,779 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:28,779 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:26:28,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 124 transitions. [2022-07-23 15:26:28,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-07-23 15:26:28,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:28,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:28,781 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,781 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:28,781 INFO L752 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 311#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 312#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 319#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 278#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 279#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 317#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 318#L851-2 [2022-07-23 15:26:28,785 INFO L754 eck$LassoCheckResult]: Loop: 318#L851-2 assume !false; 271#L852 assume test_~splverifierCounter~0#1 < 4; 272#L853 test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 298#L861 assume !(0 != test_~tmp~7#1); 291#L861-2 test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 292#L871 assume !(0 != test_~tmp___0~1#1); 296#L871-2 test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 302#L881 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 260#L889 assume 0 != test_~tmp___1~0#1; 261#L889-2 assume { :begin_inline_timeShift } true; 283#L670 assume !(0 != ~pumpRunning~0); 241#L670-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 242#L702 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 285#L694-1 assume { :end_inline_processEnvironment__wrappee__base } true; 240#L702-1 assume { :end_inline_processEnvironment } true; 295#L677-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 300#L237 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 301#L917 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 270#L923-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 277#L687 assume { :end_inline_timeShift } true; 318#L851-2 [2022-07-23 15:26:28,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:26:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593340347] [2022-07-23 15:26:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,797 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:28,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1840122695, now seen corresponding path program 1 times [2022-07-23 15:26:28,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832028671] [2022-07-23 15:26:28,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,829 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:28,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:28,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 806846589, now seen corresponding path program 1 times [2022-07-23 15:26:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:28,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471604755] [2022-07-23 15:26:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:28,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:28,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:28,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471604755] [2022-07-23 15:26:28,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471604755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:28,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:28,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 15:26:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543120785] [2022-07-23 15:26:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:28,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:28,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:26:28,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:26:28,959 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:29,035 INFO L93 Difference]: Finished difference Result 343 states and 447 transitions. [2022-07-23 15:26:29,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:26:29,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 343 states and 447 transitions. [2022-07-23 15:26:29,038 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 245 [2022-07-23 15:26:29,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 343 states to 343 states and 447 transitions. [2022-07-23 15:26:29,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 343 [2022-07-23 15:26:29,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 343 [2022-07-23 15:26:29,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 343 states and 447 transitions. [2022-07-23 15:26:29,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:29,043 INFO L369 hiAutomatonCegarLoop]: Abstraction has 343 states and 447 transitions. [2022-07-23 15:26:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states and 447 transitions. [2022-07-23 15:26:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 185. [2022-07-23 15:26:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2022-07-23 15:26:29,051 INFO L392 hiAutomatonCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-07-23 15:26:29,051 INFO L374 stractBuchiCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-07-23 15:26:29,051 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:26:29,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 237 transitions. [2022-07-23 15:26:29,052 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2022-07-23 15:26:29,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:29,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:29,053 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:29,053 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:29,053 INFO L752 eck$LassoCheckResult]: Stem: 791#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 773#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 774#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 784#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 735#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 736#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 785#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 786#L851-2 [2022-07-23 15:26:29,054 INFO L754 eck$LassoCheckResult]: Loop: 786#L851-2 assume !false; 854#L852 assume test_~splverifierCounter~0#1 < 4; 855#L853 test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 873#L861 assume !(0 != test_~tmp~7#1); 871#L861-2 test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 870#L871 assume !(0 != test_~tmp___0~1#1); 868#L871-2 test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 867#L881 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 864#L837 assume { :end_inline_startSystem } true; 862#L889-2 assume { :begin_inline_timeShift } true; 859#L670 assume !(0 != ~pumpRunning~0); 698#L670-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 699#L702 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 783#L694-1 assume { :end_inline_processEnvironment__wrappee__base } true; 697#L702-1 assume { :end_inline_processEnvironment } true; 754#L677-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 808#L237 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 781#L917 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 782#L269 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 805#L923 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 857#L923-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 856#L687 assume { :end_inline_timeShift } true; 786#L851-2 [2022-07-23 15:26:29,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:29,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:26:29,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:29,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649194133] [2022-07-23 15:26:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:29,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,062 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1962420621, now seen corresponding path program 1 times [2022-07-23 15:26:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:29,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658396908] [2022-07-23 15:26:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1215703983, now seen corresponding path program 1 times [2022-07-23 15:26:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:29,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052890047] [2022-07-23 15:26:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,093 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:29,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:31,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:26:31 BoogieIcfgContainer [2022-07-23 15:26:31,361 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:26:31,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:26:31,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:26:31,362 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:26:31,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:28" (3/4) ... [2022-07-23 15:26:31,364 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:26:31,393 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:26:31,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:26:31,394 INFO L158 Benchmark]: Toolchain (without parser) took 4368.03ms. Allocated memory was 75.5MB in the beginning and 119.5MB in the end (delta: 44.0MB). Free memory was 36.6MB in the beginning and 68.7MB in the end (delta: -32.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,394 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:31,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.11ms. Allocated memory is still 92.3MB. Free memory was 71.8MB in the beginning and 55.1MB in the end (delta: 16.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.93ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,395 INFO L158 Benchmark]: Boogie Preprocessor took 19.00ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 50.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,396 INFO L158 Benchmark]: RCFGBuilder took 580.42ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 59.3MB in the end (delta: -8.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,396 INFO L158 Benchmark]: BuchiAutomizer took 3255.30ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 59.3MB in the beginning and 70.8MB in the end (delta: -11.6MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2022-07-23 15:26:31,396 INFO L158 Benchmark]: Witness Printer took 32.00ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:31,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.11ms. Allocated memory is still 92.3MB. Free memory was 71.8MB in the beginning and 55.1MB in the end (delta: 16.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.93ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.00ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 50.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.42ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 59.3MB in the end (delta: -8.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3255.30ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 59.3MB in the beginning and 70.8MB in the end (delta: -11.6MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Witness Printer took 32.00ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 185 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 949 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 949 mSDsluCounter, 868 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 307 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 851]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68cb4037=0, NULL=1, methaneLevelCritical=0, retValue_acc=0, tmp___0=1, \result=0, retValue_acc=1, \result=1, retValue_acc=0, tmp=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6473fe3a=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6dbc37=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4efd6ff5=0, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68198aba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a2662c0=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e0f4df3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf0b578=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65203038=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 851]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L194] int waterLevel = 1; [L195] int methaneLevelCritical = 0; [L452] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L842] int splverifierCounter ; [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L846] int tmp___2 ; [L849] splverifierCounter = 0 Loop: [L851] COND TRUE 1 [L853] COND TRUE splverifierCounter < 4 [L859] tmp = __VERIFIER_nondet_int() [L861] COND FALSE !(\read(tmp)) [L869] tmp___0 = __VERIFIER_nondet_int() [L871] COND FALSE !(\read(tmp___0)) [L879] tmp___2 = __VERIFIER_nondet_int() [L881] COND TRUE \read(tmp___2) [L883] CALL startSystem() [L836] systemActive = 1 [L883] RET startSystem() [L896] CALL timeShift() [L670] COND FALSE !(\read(pumpRunning)) [L677] COND TRUE \read(systemActive) [L679] CALL processEnvironment() [L699] int tmp ; [L702] COND FALSE !(\read(pumpRunning)) [L717] FCALL processEnvironment__wrappee__base() [L679] RET processEnvironment() [L685] CALL __utac_acc__Specification3_spec__1() [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L915] CALL, EXPR isMethaneLevelCritical() [L233] int retValue_acc ; [L236] retValue_acc = methaneLevelCritical [L237] return (retValue_acc); [L915] RET, EXPR isMethaneLevelCritical() [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L921] CALL, EXPR getWaterLevel() [L265] int retValue_acc ; [L268] retValue_acc = waterLevel [L269] return (retValue_acc); [L921] RET, EXPR getWaterLevel() [L921] tmp___0 = getWaterLevel() [L923] COND FALSE !(tmp___0 == 2) [L685] RET __utac_acc__Specification3_spec__1() [L896] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:26:31,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)