./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product25.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 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:25:43,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:25:43,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:25:43,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:25:43,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:25:43,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:25:43,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:25:43,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:25:43,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:25:43,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:25:43,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:25:43,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:25:43,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:25:43,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:25:43,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:25:43,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:25:43,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:25:43,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:25:43,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:25:43,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:25:43,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:25:43,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:25:43,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:25:43,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:25:43,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:25:43,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:25:43,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:25:43,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:25:43,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:25:43,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:25:43,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:25:43,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:25:43,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:25:43,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:25:43,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:25:43,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:25:43,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:25:43,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:25:43,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:25:43,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:25:43,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:25:43,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:25:43,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:25:43,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:25:43,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:25:43,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:25:43,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:25:43,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:25:43,856 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:25:43,857 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:25:43,857 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:25:43,857 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:25:43,858 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:25:43,858 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:25:43,858 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:25:43,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:25:43,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:25:43,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:25:43,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:25:43,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:25:43,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:25:43,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:25:43,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:25:43,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:25:43,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:25:43,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:25:43,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:25:43,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:25:43,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:25:43,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 [2021-12-22 20:25:44,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:25:44,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:25:44,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:25:44,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:25:44,077 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:25:44,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2021-12-22 20:25:44,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63809ef5b/27be2d1e2cf04db3a5b738000907339b/FLAGdb74538f2 [2021-12-22 20:25:44,469 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:25:44,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2021-12-22 20:25:44,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63809ef5b/27be2d1e2cf04db3a5b738000907339b/FLAGdb74538f2 [2021-12-22 20:25:44,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63809ef5b/27be2d1e2cf04db3a5b738000907339b [2021-12-22 20:25:44,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:25:44,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:25:44,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:44,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:25:44,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:25:44,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:44" (1/1) ... [2021-12-22 20:25:44,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c743b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:44, skipping insertion in model container [2021-12-22 20:25:44,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:44" (1/1) ... [2021-12-22 20:25:44,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:25:44,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:25:45,139 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_product25.cil.c[1605,1618] [2021-12-22 20:25:45,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:45,270 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:25:45,282 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_product25.cil.c[1605,1618] [2021-12-22 20:25:45,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:45,337 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:25:45,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45 WrapperNode [2021-12-22 20:25:45,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:45,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:45,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:25:45,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:25:45,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,376 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 47, statements flattened = 377 [2021-12-22 20:25:45,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:45,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:25:45,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:25:45,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:25:45,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:25:45,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:25:45,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:25:45,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:25:45,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (1/1) ... [2021-12-22 20:25:45,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:25:45,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:25:45,459 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) [2021-12-22 20:25:45,466 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 [2021-12-22 20:25:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:25:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:25:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:25:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:25:45,544 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:25:45,545 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:25:45,782 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:25:45,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:25:45,787 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:25:45,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:45 BoogieIcfgContainer [2021-12-22 20:25:45,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:25:45,790 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:25:45,790 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:25:45,794 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:25:45,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:45,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:25:44" (1/3) ... [2021-12-22 20:25:45,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c77e2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:45, skipping insertion in model container [2021-12-22 20:25:45,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:45,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:45" (2/3) ... [2021-12-22 20:25:45,797 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c77e2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:45, skipping insertion in model container [2021-12-22 20:25:45,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:45,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:45" (3/3) ... [2021-12-22 20:25:45,798 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2021-12-22 20:25:45,829 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:25:45,830 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:25:45,830 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:25:45,830 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:25:45,830 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:25:45,830 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:25:45,830 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:25:45,831 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:25:45,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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) [2021-12-22 20:25:45,882 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-22 20:25:45,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:45,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:45,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:45,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:45,888 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:25:45,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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) [2021-12-22 20:25:45,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-22 20:25:45,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:45,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:45,905 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:45,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:45,913 INFO L791 eck$LassoCheckResult]: Stem: 96#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 33#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~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 20#L332true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 56#L325true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 84#L340true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 47#L909true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 102#L886true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 26#L73-2true [2021-12-22 20:25:45,914 INFO L793 eck$LassoCheckResult]: Loop: 26#L73-2true assume !false; 60#L74true assume test_~splverifierCounter~0#1 < 4; 53#L75true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 18#L83true assume !(0 != test_~tmp~0#1); 90#L83-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 30#L93true assume !(0 != test_~tmp___0~0#1); 80#L93-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 94#L103true assume 0 != test_~tmp___2~0#1; 98#L109-2true assume { :begin_inline_timeShift } true; 9#L144true assume !(0 != ~pumpRunning~0); 59#L144-2true assume !(0 != ~systemActive~0); 28#L151-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret21#1, __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 21#L447true __utac_acc__Specification4_spec__1_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret21#1;havoc __utac_acc__Specification4_spec__1_#t~ret21#1; 48#L354true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 34#L354-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 12#L161true assume { :end_inline_timeShift } true; 26#L73-2true [2021-12-22 20:25:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-22 20:25:45,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:45,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33246583] [2021-12-22 20:25:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:45,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,021 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -828886172, now seen corresponding path program 1 times [2021-12-22 20:25:46,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:46,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402374644] [2021-12-22 20:25:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:46,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 526532904, now seen corresponding path program 1 times [2021-12-22 20:25:46,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:46,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314979752] [2021-12-22 20:25:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:46,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:25:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:25:46,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:25:46,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314979752] [2021-12-22 20:25:46,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314979752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:25:46,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:25:46,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:25:46,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014953797] [2021-12-22 20:25:46,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:25:46,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:25:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:25:46,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:25:46,347 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-12-22 20:25:46,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:25:46,401 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2021-12-22 20:25:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 20:25:46,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 124 transitions. [2021-12-22 20:25:46,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-22 20:25:46,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 114 transitions. [2021-12-22 20:25:46,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-12-22 20:25:46,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-12-22 20:25:46,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 114 transitions. [2021-12-22 20:25:46,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:25:46,419 INFO L681 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-22 20:25:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 114 transitions. [2021-12-22 20:25:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-12-22 20:25:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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) [2021-12-22 20:25:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-12-22 20:25:46,451 INFO L704 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-22 20:25:46,451 INFO L587 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-22 20:25:46,451 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:25:46,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 114 transitions. [2021-12-22 20:25:46,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-22 20:25:46,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:46,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:46,455 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:46,455 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] [2021-12-22 20:25:46,455 INFO L791 eck$LassoCheckResult]: Stem: 306#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 293#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~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 271#L332 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 272#L325 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 282#L340 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 283#L909 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 307#L886 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 247#L73-2 [2021-12-22 20:25:46,455 INFO L793 eck$LassoCheckResult]: Loop: 247#L73-2 assume !false; 226#L74 assume test_~splverifierCounter~0#1 < 4; 227#L75 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 259#L83 assume !(0 != test_~tmp~0#1); 261#L83-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 279#L93 assume !(0 != test_~tmp___0~0#1); 275#L93-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 276#L103 assume 0 != test_~tmp___2~0#1; 296#L109-2 assume { :begin_inline_timeShift } true; 238#L144 assume !(0 != ~pumpRunning~0); 224#L144-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 225#L176 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 297#L168-1 assume { :end_inline_processEnvironment__wrappee__base } true; 231#L176-1 assume { :end_inline_processEnvironment } true; 262#L151-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret21#1, __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 267#L447 __utac_acc__Specification4_spec__1_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret21#1;havoc __utac_acc__Specification4_spec__1_#t~ret21#1; 268#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 253#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 246#L161 assume { :end_inline_timeShift } true; 247#L73-2 [2021-12-22 20:25:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-22 20:25:46,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:46,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215785086] [2021-12-22 20:25:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:46,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,503 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash -646833821, now seen corresponding path program 1 times [2021-12-22 20:25:46,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:46,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771137403] [2021-12-22 20:25:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:46,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,514 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1655309599, now seen corresponding path program 1 times [2021-12-22 20:25:46,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:46,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220078825] [2021-12-22 20:25:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:46,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:46,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:48,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:25:48 BoogieIcfgContainer [2021-12-22 20:25:48,786 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:25:48,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:25:48,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:25:48,787 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:25:48,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:45" (3/4) ... [2021-12-22 20:25:48,789 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:25:48,819 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:25:48,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:25:48,820 INFO L158 Benchmark]: Toolchain (without parser) took 3934.78ms. Allocated memory was 83.9MB in the beginning and 153.1MB in the end (delta: 69.2MB). Free memory was 51.1MB in the beginning and 73.6MB in the end (delta: -22.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,821 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:25:48,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.54ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 50.8MB in the beginning and 90.6MB in the end (delta: -39.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 121.6MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,822 INFO L158 Benchmark]: Boogie Preprocessor took 53.31ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 86.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,822 INFO L158 Benchmark]: RCFGBuilder took 358.30ms. Allocated memory is still 121.6MB. Free memory was 86.1MB in the beginning and 69.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,823 INFO L158 Benchmark]: BuchiAutomizer took 2996.49ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 69.3MB in the beginning and 75.7MB in the end (delta: -6.4MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2021-12-22 20:25:48,823 INFO L158 Benchmark]: Witness Printer took 33.31ms. Allocated memory is still 153.1MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:25:48,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.54ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 50.8MB in the beginning and 90.6MB in the end (delta: -39.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 121.6MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.31ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 86.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.30ms. Allocated memory is still 121.6MB. Free memory was 86.1MB in the beginning and 69.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2996.49ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 69.3MB in the beginning and 75.7MB in the end (delta: -6.4MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * Witness Printer took 33.31ms. Allocated memory is still 153.1MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 89 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 89 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 471 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 119 mSDtfsCounter, 8 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: 73]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d6338ae=0, NULL=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b8ebb93=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36fd30d9=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e82c44f=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ebed8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@581d909f=29, methaneLevelCritical=0, retValue_acc=0, tmp=1, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66d81fce=0, tmp=1, tmp___2=29, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f72c9ad=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 73]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L136] int pumpRunning = 0; [L137] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L630] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L827] int cleanupTimeShifts = 4; [L900] int retValue_acc ; [L901] int tmp ; [L905] FCALL select_helpers() [L906] FCALL select_features() [L907] CALL, EXPR valid_product() [L336] int retValue_acc ; [L339] retValue_acc = 1 [L340] return (retValue_acc); [L907] RET, EXPR valid_product() [L907] tmp = valid_product() [L909] COND TRUE \read(tmp) [L911] FCALL setup() [L912] CALL runTest() [L894] CALL test() [L64] int splverifierCounter ; [L65] int tmp ; [L66] int tmp___0 ; [L67] int tmp___1 ; [L68] int tmp___2 ; [L71] splverifierCounter = 0 Loop: [L73] COND TRUE 1 [L75] COND TRUE splverifierCounter < 4 [L81] tmp = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp)) [L91] tmp___0 = __VERIFIER_nondet_int() [L93] COND FALSE !(\read(tmp___0)) [L101] tmp___2 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___2) [L116] CALL timeShift() [L144] COND FALSE !(\read(pumpRunning)) [L151] COND TRUE \read(systemActive) [L153] CALL processEnvironment() [L173] int tmp ; [L176] COND FALSE !(\read(pumpRunning)) [L191] FCALL processEnvironment__wrappee__base() [L153] RET processEnvironment() [L159] CALL __utac_acc__Specification4_spec__1() [L347] int tmp ; [L348] int tmp___0 ; [L352] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] RET, EXPR getWaterLevel() [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) [L159] RET __utac_acc__Specification4_spec__1() [L116] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:25:48,855 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)