./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec2_product19.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 589282c7075ad677d11d7e5d6747c3f882de49697a3649a6296f51163d1d51b5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:01,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:01,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:01,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:01,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:01,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:01,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:01,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:01,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:01,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:01,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:01,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:01,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:01,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:01,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:01,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:01,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:01,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:01,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:01,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:01,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:01,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:01,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:01,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:01,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:01,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:01,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:01,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:01,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:01,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:01,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:01,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:01,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:01,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:01,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:01,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:01,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:01,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:01,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:01,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:01,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:01,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:01,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:01,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:01,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:01,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:01,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:01,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:01,755 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:01,755 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:01,755 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:01,756 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:01,756 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:01,756 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:01,756 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:01,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:01,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:01,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:01,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:01,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:01,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:01,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:01,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:01,760 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:01,760 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 589282c7075ad677d11d7e5d6747c3f882de49697a3649a6296f51163d1d51b5 [2022-02-21 04:16:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:02,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:02,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:02,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:02,006 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:02,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c [2022-02-21 04:16:02,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3341a264/8e8abc6061b44e8eb43f995cfcf8b18f/FLAG3165a85db [2022-02-21 04:16:02,497 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:02,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product19.cil.c [2022-02-21 04:16:02,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3341a264/8e8abc6061b44e8eb43f995cfcf8b18f/FLAG3165a85db [2022-02-21 04:16:02,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3341a264/8e8abc6061b44e8eb43f995cfcf8b18f [2022-02-21 04:16:02,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:02,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:02,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:02,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:02,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:02,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:02" (1/1) ... [2022-02-21 04:16:02,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682ce41a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:02, skipping insertion in model container [2022-02-21 04:16:02,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:02" (1/1) ... [2022-02-21 04:16:02,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:02,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:03,041 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_spec2_product19.cil.c[1605,1618] [2022-02-21 04:16:03,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:03,204 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:03,225 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_spec2_product19.cil.c[1605,1618] [2022-02-21 04:16:03,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:03,338 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:03,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03 WrapperNode [2022-02-21 04:16:03,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:03,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:03,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:03,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:03,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,407 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 400 [2022-02-21 04:16:03,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:03,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:03,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:03,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:03,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:03,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:03,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:03,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:03,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (1/1) ... [2022-02-21 04:16:03,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:03,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:03,509 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) [2022-02-21 04:16:03,512 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 [2022-02-21 04:16:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:03,599 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:03,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:03,998 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:04,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:04,007 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:04,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:04 BoogieIcfgContainer [2022-02-21 04:16:04,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:04,010 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:04,010 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:04,013 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:04,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:04,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:02" (1/3) ... [2022-02-21 04:16:04,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c04c83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:04, skipping insertion in model container [2022-02-21 04:16:04,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:04,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:03" (2/3) ... [2022-02-21 04:16:04,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c04c83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:04, skipping insertion in model container [2022-02-21 04:16:04,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:04,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:04" (3/3) ... [2022-02-21 04:16:04,018 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product19.cil.c [2022-02-21 04:16:04,067 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:04,068 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:04,068 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:04,068 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:04,068 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:04,068 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:04,068 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:04,069 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:04,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2022-02-21 04:16:04,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:16:04,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:04,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:04,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:04,136 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:04,136 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:04,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2022-02-21 04:16:04,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2022-02-21 04:16:04,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:04,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:04,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:04,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:04,160 INFO L791 eck$LassoCheckResult]: Stem: 101#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 72#L924true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 94#L917true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 68#L932true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 44#L611true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 109#L582true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 23#L632true assume { :end_inline___utac_acc__Specification2_spec__1 } 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 102#L845-2true [2022-02-21 04:16:04,163 INFO L793 eck$LassoCheckResult]: Loop: 102#L845-2true assume !false; 13#L846true assume test_~splverifierCounter~0#1 < 4; 91#L847true test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 11#L855true assume !(0 != test_~tmp~7#1); 83#L855-2true test_~tmp___0~2#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 88#L865true assume !(0 != test_~tmp___0~2#1); 27#L865-2true test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 10#L875true assume 0 != test_~tmp___2~0#1; 4#L881-2true assume { :begin_inline_timeShift } true; 52#L675true assume !(0 != ~pumpRunning~0); 18#L675-2true assume !(0 != ~systemActive~0); 22#L682-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 58#L475true __utac_acc__Specification2_spec__2_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret33#1;havoc __utac_acc__Specification2_spec__2_#t~ret33#1; 33#L643true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 77#L643-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 35#L692true assume { :end_inline_timeShift } true; 102#L845-2true [2022-02-21 04:16:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:04,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:04,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499511522] [2022-02-21 04:16:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:04,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:04,356 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:04,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1032421930, now seen corresponding path program 1 times [2022-02-21 04:16:04,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:04,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057477831] [2022-02-21 04:16:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:04,386 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:04,396 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:04,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:04,398 INFO L85 PathProgramCache]: Analyzing trace with hash 870134547, now seen corresponding path program 1 times [2022-02-21 04:16:04,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:04,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197874640] [2022-02-21 04:16:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:04,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:04,570 INFO L290 TraceCheckUtils]: 0: Hoare triple {118#true} 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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {120#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:04,571 INFO L290 TraceCheckUtils]: 1: Hoare triple {120#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {120#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:04,573 INFO L290 TraceCheckUtils]: 2: Hoare triple {120#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {120#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:04,574 INFO L290 TraceCheckUtils]: 3: Hoare triple {120#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {121#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:04,574 INFO L290 TraceCheckUtils]: 4: Hoare triple {121#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; {122#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:16:04,575 INFO L290 TraceCheckUtils]: 5: Hoare triple {122#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,575 INFO L290 TraceCheckUtils]: 6: Hoare triple {123#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,576 INFO L290 TraceCheckUtils]: 7: Hoare triple {123#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,577 INFO L290 TraceCheckUtils]: 8: Hoare triple {123#(not (= 0 ~systemActive~0))} assume !false; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,577 INFO L290 TraceCheckUtils]: 9: Hoare triple {123#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,578 INFO L290 TraceCheckUtils]: 10: Hoare triple {123#(not (= 0 ~systemActive~0))} test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,579 INFO L290 TraceCheckUtils]: 11: Hoare triple {123#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~7#1); {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,580 INFO L290 TraceCheckUtils]: 12: Hoare triple {123#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,581 INFO L290 TraceCheckUtils]: 13: Hoare triple {123#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,581 INFO L290 TraceCheckUtils]: 14: Hoare triple {123#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,582 INFO L290 TraceCheckUtils]: 15: Hoare triple {123#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,583 INFO L290 TraceCheckUtils]: 16: Hoare triple {123#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,583 INFO L290 TraceCheckUtils]: 17: Hoare triple {123#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {123#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:04,584 INFO L290 TraceCheckUtils]: 18: Hoare triple {123#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {119#false} is VALID [2022-02-21 04:16:04,584 INFO L290 TraceCheckUtils]: 19: Hoare triple {119#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {119#false} is VALID [2022-02-21 04:16:04,584 INFO L290 TraceCheckUtils]: 20: Hoare triple {119#false} __utac_acc__Specification2_spec__2_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret33#1;havoc __utac_acc__Specification2_spec__2_#t~ret33#1; {119#false} is VALID [2022-02-21 04:16:04,585 INFO L290 TraceCheckUtils]: 21: Hoare triple {119#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; {119#false} is VALID [2022-02-21 04:16:04,585 INFO L290 TraceCheckUtils]: 22: Hoare triple {119#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {119#false} is VALID [2022-02-21 04:16:04,585 INFO L290 TraceCheckUtils]: 23: Hoare triple {119#false} assume { :end_inline_timeShift } true; {119#false} is VALID [2022-02-21 04:16:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:04,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:04,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197874640] [2022-02-21 04:16:04,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197874640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:04,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:04,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:04,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635030978] [2022-02-21 04:16:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:04,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:04,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:04,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:04,781 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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) [2022-02-21 04:16:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:05,530 INFO L93 Difference]: Finished difference Result 273 states and 354 transitions. [2022-02-21 04:16:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:05,532 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:05,557 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:05,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 273 states and 354 transitions. [2022-02-21 04:16:05,578 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2022-02-21 04:16:05,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 273 states to 243 states and 324 transitions. [2022-02-21 04:16:05,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2022-02-21 04:16:05,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2022-02-21 04:16:05,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 324 transitions. [2022-02-21 04:16:05,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:05,593 INFO L681 BuchiCegarLoop]: Abstraction has 243 states and 324 transitions. [2022-02-21 04:16:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 324 transitions. [2022-02-21 04:16:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 152. [2022-02-21 04:16:05,623 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:05,624 INFO L82 GeneralOperation]: Start isEquivalent. First operand 243 states and 324 transitions. Second operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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) [2022-02-21 04:16:05,626 INFO L74 IsIncluded]: Start isIncluded. First operand 243 states and 324 transitions. Second operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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) [2022-02-21 04:16:05,627 INFO L87 Difference]: Start difference. First operand 243 states and 324 transitions. Second operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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) [2022-02-21 04:16:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:05,642 INFO L93 Difference]: Finished difference Result 243 states and 324 transitions. [2022-02-21 04:16:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 324 transitions. [2022-02-21 04:16:05,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:05,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:05,645 INFO L74 IsIncluded]: Start isIncluded. First operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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 243 states and 324 transitions. [2022-02-21 04:16:05,646 INFO L87 Difference]: Start difference. First operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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 243 states and 324 transitions. [2022-02-21 04:16:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:05,654 INFO L93 Difference]: Finished difference Result 243 states and 324 transitions. [2022-02-21 04:16:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 324 transitions. [2022-02-21 04:16:05,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:05,656 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:05,656 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:05,656 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3355263157894737) internal successors, (203), 151 states have internal predecessors, (203), 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) [2022-02-21 04:16:05,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2022-02-21 04:16:05,662 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 203 transitions. [2022-02-21 04:16:05,662 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 203 transitions. [2022-02-21 04:16:05,663 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:05,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 203 transitions. [2022-02-21 04:16:05,664 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2022-02-21 04:16:05,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:05,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:05,665 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,665 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,666 INFO L791 eck$LassoCheckResult]: Stem: 496#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 458#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 459#L924 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 487#L917 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 483#L932 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 468#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 469#L582 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 439#L632 assume { :end_inline___utac_acc__Specification2_spec__1 } 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 440#L845-2 [2022-02-21 04:16:05,666 INFO L793 eck$LassoCheckResult]: Loop: 440#L845-2 assume !false; 421#L846 assume test_~splverifierCounter~0#1 < 4; 422#L847 test_~tmp~7#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 416#L855 assume !(0 != test_~tmp~7#1); 418#L855-2 test_~tmp___0~2#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 491#L865 assume !(0 != test_~tmp___0~2#1); 420#L865-2 test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 414#L875 assume 0 != test_~tmp___2~0#1; 401#L881-2 assume { :begin_inline_timeShift } true; 402#L675 assume !(0 != ~pumpRunning~0); 429#L675-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 430#L707 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 479#L699-1 assume { :end_inline_processEnvironment__wrappee__base } true; 466#L707-1 assume { :end_inline_processEnvironment } true; 437#L682-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 438#L475 __utac_acc__Specification2_spec__2_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret33#1;havoc __utac_acc__Specification2_spec__2_#t~ret33#1; 450#L643 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 451#L643-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 453#L692 assume { :end_inline_timeShift } true; 440#L845-2 [2022-02-21 04:16:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,667 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:05,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719829770] [2022-02-21 04:16:05,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,701 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,715 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1377565590, now seen corresponding path program 1 times [2022-02-21 04:16:05,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504281037] [2022-02-21 04:16:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,722 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,727 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1487653363, now seen corresponding path program 1 times [2022-02-21 04:16:05,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660013182] [2022-02-21 04:16:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,757 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:08,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:08 BoogieIcfgContainer [2022-02-21 04:16:08,643 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:08,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:08,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:08,644 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:08,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:04" (3/4) ... [2022-02-21 04:16:08,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:08,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:08,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:08,683 INFO L158 Benchmark]: Toolchain (without parser) took 5834.68ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 72.7MB in the beginning and 90.2MB in the end (delta: -17.5MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,683 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:08,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.55ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 61.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.79ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 57.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,685 INFO L158 Benchmark]: Boogie Preprocessor took 61.60ms. Allocated memory is still 96.5MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,685 INFO L158 Benchmark]: RCFGBuilder took 538.62ms. Allocated memory is still 96.5MB. Free memory was 55.3MB in the beginning and 61.8MB in the end (delta: -6.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,685 INFO L158 Benchmark]: BuchiAutomizer took 4632.94ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 61.8MB in the beginning and 93.3MB in the end (delta: -31.6MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,686 INFO L158 Benchmark]: Witness Printer took 38.59ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 90.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:08,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.55ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 61.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.79ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 57.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.60ms. Allocated memory is still 96.5MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.62ms. Allocated memory is still 96.5MB. Free memory was 55.3MB in the beginning and 61.8MB in the end (delta: -6.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4632.94ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 61.8MB in the beginning and 93.3MB in the end (delta: -31.6MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Witness Printer took 38.59ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 90.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. 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 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 6 locations. The remainder module has 152 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 152 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 847 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 713 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 134 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 845]: 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, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@234a3702=0, NULL=1, tmp=0, methaneLevelCritical=0, retValue_acc=1, \result=0, \result=1, retValue_acc=0, retValue_acc=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@518028d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14d59c00=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@326fb0cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b2bb9ab=29, tmp___0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38d2aba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20692085=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c83f3d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 845]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L626] int methAndRunningLastTime ; [L668] int pumpRunning = 0; [L669] int systemActive = 1; [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L928] int retValue_acc ; [L931] retValue_acc = 1 [L932] return (retValue_acc); [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification2_spec__1() [L631] methAndRunningLastTime = 0 [L592] RET __utac_acc__Specification2_spec__1() [L593] CALL test() [L836] int splverifierCounter ; [L837] int tmp ; [L838] int tmp___0 ; [L839] int tmp___1 ; [L840] int tmp___2 ; [L843] splverifierCounter = 0 Loop: [L845] COND TRUE 1 [L847] COND TRUE splverifierCounter < 4 [L853] tmp = __VERIFIER_nondet_int() [L855] COND FALSE !(\read(tmp)) [L863] tmp___0 = __VERIFIER_nondet_int() [L865] COND FALSE !(\read(tmp___0)) [L873] tmp___2 = __VERIFIER_nondet_int() [L875] COND TRUE \read(tmp___2) [L890] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND TRUE \read(systemActive) [L684] CALL processEnvironment() [L704] int tmp ; [L707] COND FALSE !(\read(pumpRunning)) [L722] FCALL processEnvironment__wrappee__base() [L684] RET processEnvironment() [L690] CALL __utac_acc__Specification2_spec__2() [L636] int tmp ; [L637] int tmp___0 ; [L641] CALL, EXPR isMethaneLevelCritical() [L471] int retValue_acc ; [L474] retValue_acc = methaneLevelCritical [L475] return (retValue_acc); [L641] RET, EXPR isMethaneLevelCritical() [L641] tmp = isMethaneLevelCritical() [L643] COND FALSE !(\read(tmp)) [L659] methAndRunningLastTime = 0 [L690] RET __utac_acc__Specification2_spec__2() [L890] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:08,733 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)