./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product30.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_spec4_product30.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 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:46,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:46,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:46,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:46,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:46,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:46,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:46,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:46,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:46,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:46,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:46,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:46,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:46,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:46,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:46,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:46,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:46,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:46,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:46,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:46,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:46,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:46,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:46,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:46,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:46,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:46,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:46,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:46,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:46,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:46,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:46,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:46,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:46,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:46,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:46,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:46,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:46,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:46,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:46,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:46,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:46,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:46,779 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:46,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:46,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:46,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:46,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:46,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:46,781 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:46,781 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:46,781 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:46,782 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:46,782 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:46,782 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:46,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:46,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:46,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:46,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:46,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:46,784 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:46,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:46,785 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:46,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:46,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:46,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:46,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:46,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:46,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:46,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:46,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 [2022-02-21 04:17:46,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:47,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:47,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:47,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:47,017 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:47,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2022-02-21 04:17:47,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1f9cabb/1ec372c61233415a9f78eb34005b18e8/FLAGd152dd92f [2022-02-21 04:17:47,447 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:47,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2022-02-21 04:17:47,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1f9cabb/1ec372c61233415a9f78eb34005b18e8/FLAGd152dd92f [2022-02-21 04:17:47,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1f9cabb/1ec372c61233415a9f78eb34005b18e8 [2022-02-21 04:17:47,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:47,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:47,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:47,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:47,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:47,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:47" (1/1) ... [2022-02-21 04:17:47,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c035780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:47, skipping insertion in model container [2022-02-21 04:17:47,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:47" (1/1) ... [2022-02-21 04:17:47,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:47,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:48,120 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_spec4_product30.cil.c[18223,18236] [2022-02-21 04:17:48,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:48,133 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:48,183 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_spec4_product30.cil.c[18223,18236] [2022-02-21 04:17:48,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:48,196 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:48,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48 WrapperNode [2022-02-21 04:17:48,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:48,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:48,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:48,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:48,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,277 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 78, statements flattened = 560 [2022-02-21 04:17:48,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:48,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:48,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:48,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:48,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:48,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:48,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:48,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:48,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (1/1) ... [2022-02-21 04:17:48,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:48,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:48,347 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 04:17:48,363 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 04:17:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:48,474 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:48,476 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:48,881 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:48,888 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:48,890 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:48,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:48 BoogieIcfgContainer [2022-02-21 04:17:48,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:48,895 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:48,895 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:48,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:48,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:48,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:47" (1/3) ... [2022-02-21 04:17:48,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59f2d3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:48, skipping insertion in model container [2022-02-21 04:17:48,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:48,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:48" (2/3) ... [2022-02-21 04:17:48,900 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59f2d3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:48, skipping insertion in model container [2022-02-21 04:17:48,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:48,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:48" (3/3) ... [2022-02-21 04:17:48,901 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2022-02-21 04:17:48,961 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:48,961 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:48,961 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:48,961 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:48,961 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:48,962 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:48,962 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:48,962 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:48,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 04:17:49,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:49,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:49,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:49,038 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:49,039 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:49,039 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:49,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 04:17:49,053 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:49,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:49,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:49,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:49,060 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:49,065 INFO L791 eck$LassoCheckResult]: Stem: 133#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(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 44#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 91#L937true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 66#L930true 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; 107#L945true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 146#L901true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 18#L875true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 127#L393-2true [2022-02-21 04:17:49,066 INFO L793 eck$LassoCheckResult]: Loop: 127#L393-2true assume !false; 21#L394true assume test_~splverifierCounter~0#1 < 4; 90#L395true test_~tmp~5#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 53#L403true assume !(0 != test_~tmp~5#1); 45#L403-2true test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 139#L413true assume !(0 != test_~tmp___0~2#1); 105#L413-2true test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 25#L423true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 19#L378true assume { :end_inline_startSystem } true; 75#L431-2true assume { :begin_inline_timeShift } true; 71#L186true assume !(0 != ~pumpRunning~0); 12#L186-2true assume !(0 != ~systemActive~0); 111#L193-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret9#1, __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 140#L132true __utac_acc__Specification4_spec__1_#t~ret9#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret9#1;havoc __utac_acc__Specification4_spec__1_#t~ret9#1; 143#L156true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 108#L156-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 32#L203true assume { :end_inline_timeShift } true; 127#L393-2true [2022-02-21 04:17:49,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:49,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:49,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:49,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815585069] [2022-02-21 04:17:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,167 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,238 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:49,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1638981887, now seen corresponding path program 1 times [2022-02-21 04:17:49,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:49,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141977017] [2022-02-21 04:17:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:49,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:49,330 INFO L290 TraceCheckUtils]: 0: Hoare triple {157#true} assume !false; {157#true} is VALID [2022-02-21 04:17:49,330 INFO L290 TraceCheckUtils]: 1: Hoare triple {157#true} assume test_~splverifierCounter~0#1 < 4; {157#true} is VALID [2022-02-21 04:17:49,331 INFO L290 TraceCheckUtils]: 2: Hoare triple {157#true} test_~tmp~5#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {157#true} is VALID [2022-02-21 04:17:49,331 INFO L290 TraceCheckUtils]: 3: Hoare triple {157#true} assume !(0 != test_~tmp~5#1); {157#true} is VALID [2022-02-21 04:17:49,331 INFO L290 TraceCheckUtils]: 4: Hoare triple {157#true} test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {157#true} is VALID [2022-02-21 04:17:49,331 INFO L290 TraceCheckUtils]: 5: Hoare triple {157#true} assume !(0 != test_~tmp___0~2#1); {157#true} is VALID [2022-02-21 04:17:49,331 INFO L290 TraceCheckUtils]: 6: Hoare triple {157#true} test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {157#true} is VALID [2022-02-21 04:17:49,332 INFO L290 TraceCheckUtils]: 7: Hoare triple {157#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:49,333 INFO L290 TraceCheckUtils]: 8: Hoare triple {159#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:49,334 INFO L290 TraceCheckUtils]: 9: Hoare triple {159#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:49,334 INFO L290 TraceCheckUtils]: 10: Hoare triple {159#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:49,335 INFO L290 TraceCheckUtils]: 11: Hoare triple {159#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {158#false} is VALID [2022-02-21 04:17:49,335 INFO L290 TraceCheckUtils]: 12: Hoare triple {158#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret9#1, __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {158#false} is VALID [2022-02-21 04:17:49,335 INFO L290 TraceCheckUtils]: 13: Hoare triple {158#false} __utac_acc__Specification4_spec__1_#t~ret9#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret9#1;havoc __utac_acc__Specification4_spec__1_#t~ret9#1; {158#false} is VALID [2022-02-21 04:17:49,335 INFO L290 TraceCheckUtils]: 14: Hoare triple {158#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); {158#false} is VALID [2022-02-21 04:17:49,336 INFO L290 TraceCheckUtils]: 15: Hoare triple {158#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {158#false} is VALID [2022-02-21 04:17:49,336 INFO L290 TraceCheckUtils]: 16: Hoare triple {158#false} assume { :end_inline_timeShift } true; {158#false} is VALID [2022-02-21 04:17:49,337 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 04:17:49,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:49,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141977017] [2022-02-21 04:17:49,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141977017] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:49,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:49,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:49,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631061838] [2022-02-21 04:17:49,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:49,343 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:49,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:49,375 INFO L87 Difference]: Start difference. First operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:17:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:49,559 INFO L93 Difference]: Finished difference Result 148 states and 189 transitions. [2022-02-21 04:17:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:49,560 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:17:49,574 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:49,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 189 transitions. [2022-02-21 04:17:49,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:17:49,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 138 states and 178 transitions. [2022-02-21 04:17:49,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 138 [2022-02-21 04:17:49,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2022-02-21 04:17:49,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 178 transitions. [2022-02-21 04:17:49,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:49,591 INFO L681 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 178 transitions. [2022-02-21 04:17:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-02-21 04:17:49,611 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:49,612 INFO L82 GeneralOperation]: Start isEquivalent. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:17:49,613 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:17:49,614 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:17:49,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:49,618 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:17:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:49,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:49,620 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:49,620 INFO L74 IsIncluded]: Start isIncluded. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:17:49,620 INFO L87 Difference]: Start difference. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:17:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:49,624 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:17:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:49,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:49,625 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:49,625 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:49,625 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:49,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:17:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2022-02-21 04:17:49,629 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:49,629 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:49,630 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:49,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:49,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:17:49,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:49,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:49,632 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:49,632 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, 1, 1, 1] [2022-02-21 04:17:49,632 INFO L791 eck$LassoCheckResult]: Stem: 442#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(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 379#L937 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 400#L930 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; 401#L945 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 432#L901 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 333#L875 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 334#L393-2 [2022-02-21 04:17:49,632 INFO L793 eck$LassoCheckResult]: Loop: 334#L393-2 assume !false; 338#L394 assume test_~splverifierCounter~0#1 < 4; 339#L395 test_~tmp~5#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 388#L403 assume !(0 != test_~tmp~5#1); 380#L403-2 test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 381#L413 assume !(0 != test_~tmp___0~2#1); 315#L413-2 test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 346#L423 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 347#L431 assume 0 != test_~tmp___1~0#1; 336#L431-2 assume { :begin_inline_timeShift } true; 405#L186 assume !(0 != ~pumpRunning~0); 323#L186-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 324#L244 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret11#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 325#L218-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 308#L210-3 assume { :end_inline_processEnvironment__wrappee__base } true; 309#L218-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 319#L244-1 assume { :end_inline_processEnvironment } true; 354#L193-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret9#1, __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 434#L132 __utac_acc__Specification4_spec__1_#t~ret9#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret9#1;havoc __utac_acc__Specification4_spec__1_#t~ret9#1; 444#L156 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 428#L156-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 353#L203 assume { :end_inline_timeShift } true; 334#L393-2 [2022-02-21 04:17:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:49,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:49,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852788811] [2022-02-21 04:17:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,647 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,660 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:49,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1849145086, now seen corresponding path program 1 times [2022-02-21 04:17:49,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:49,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588665995] [2022-02-21 04:17:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:49,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,668 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,672 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:49,687 INFO L85 PathProgramCache]: Analyzing trace with hash -732302394, now seen corresponding path program 1 times [2022-02-21 04:17:49,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:49,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673743713] [2022-02-21 04:17:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:49,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,715 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:49,743 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:52,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:52 BoogieIcfgContainer [2022-02-21 04:17:52,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:52,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:52,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:52,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:52,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:48" (3/4) ... [2022-02-21 04:17:52,239 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:52,269 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:52,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:52,270 INFO L158 Benchmark]: Toolchain (without parser) took 4413.34ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 69.9MB in the beginning and 109.2MB in the end (delta: -39.3MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,271 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:52,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.01ms. Allocated memory is still 111.1MB. Free memory was 69.7MB in the beginning and 73.9MB in the end (delta: -4.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.43ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 70.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,272 INFO L158 Benchmark]: Boogie Preprocessor took 21.11ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 67.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,272 INFO L158 Benchmark]: RCFGBuilder took 594.19ms. Allocated memory is still 111.1MB. Free memory was 67.7MB in the beginning and 43.2MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,272 INFO L158 Benchmark]: BuchiAutomizer took 3341.86ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 43.2MB in the beginning and 111.2MB in the end (delta: -68.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,273 INFO L158 Benchmark]: Witness Printer took 32.65ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 109.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:52,274 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 0.18ms. Allocated memory is still 111.1MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.01ms. Allocated memory is still 111.1MB. Free memory was 69.7MB in the beginning and 73.9MB in the end (delta: -4.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.43ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 70.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.11ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 67.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.19ms. Allocated memory is still 111.1MB. Free memory was 67.7MB in the beginning and 43.2MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3341.86ms. Allocated memory was 111.1MB in the beginning and 180.4MB in the end (delta: 69.2MB). Free memory was 43.2MB in the beginning and 111.2MB in the end (delta: -68.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 32.65ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 109.2MB in the end (delta: 2.0MB). 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 3 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 186 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 393]: 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, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c405af=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a917d1b=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f59e4b0=0, methaneLevelCritical=0, retValue_acc=1, \result=1, retValue_acc=0, tmp=1, tmp___2=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@124a430b=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@229964d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@637daaba=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64608f2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6945cc46=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4083396f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 393]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L619] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L816] int cleanupTimeShifts = 4; [L892] int retValue_acc ; [L893] int tmp ; [L897] FCALL select_helpers() [L898] FCALL select_features() [L899] CALL, EXPR valid_product() [L941] int retValue_acc ; [L944] retValue_acc = 1 [L945] return (retValue_acc); [L899] RET, EXPR valid_product() [L899] tmp = valid_product() [L901] COND TRUE \read(tmp) [L903] FCALL setup() [L904] CALL runTest() [L883] CALL test() [L384] int splverifierCounter ; [L385] int tmp ; [L386] int tmp___0 ; [L387] int tmp___1 ; [L388] int tmp___2 ; [L391] splverifierCounter = 0 Loop: [L393] COND TRUE 1 [L395] COND TRUE splverifierCounter < 4 [L401] tmp = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp)) [L411] tmp___0 = __VERIFIER_nondet_int() [L413] COND FALSE !(\read(tmp___0)) [L421] tmp___2 = __VERIFIER_nondet_int() [L423] COND FALSE !(\read(tmp___2)) [L429] tmp___1 = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp___1) [L438] CALL timeShift() [L186] COND FALSE !(\read(pumpRunning)) [L193] COND TRUE \read(systemActive) [L195] CALL processEnvironment() [L241] int tmp ; [L244] COND FALSE !(\read(pumpRunning)) [L259] CALL processEnvironment__wrappee__methaneQuery() [L215] int tmp ; [L218] COND FALSE !(\read(pumpRunning)) [L233] FCALL processEnvironment__wrappee__base() [L259] RET processEnvironment__wrappee__methaneQuery() [L195] RET processEnvironment() [L201] CALL __utac_acc__Specification4_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L154] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L154] RET, EXPR getWaterLevel() [L154] tmp = getWaterLevel() [L156] COND FALSE !(tmp == 0) [L201] RET __utac_acc__Specification4_spec__1() [L438] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:52,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)