./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/elevator_spec1_product20.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 3f11976cf57fe8d65e71fe2317840ceb817472b70b756607274947c31f43df4d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:12:46,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:12:46,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:12:46,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:12:46,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:12:46,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:12:46,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:12:46,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:12:46,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:12:46,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:12:46,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:12:46,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:12:46,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:12:46,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:12:46,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:12:46,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:12:46,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:12:46,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:12:46,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:12:46,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:12:46,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:12:46,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:12:46,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:12:46,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:12:46,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:12:46,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:12:46,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:12:46,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:12:46,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:12:46,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:12:46,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:12:46,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:12:46,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:12:46,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:12:46,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:12:46,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:12:46,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:12:46,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:12:46,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:12:46,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:12:46,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:12:46,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:12:46,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:12:46,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:12:46,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:12:46,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:12:46,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:12:46,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:12:46,792 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:12:46,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:12:46,792 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:12:46,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:12:46,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:12:46,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:12:46,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:12:46,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:12:46,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:12:46,795 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:12:46,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f11976cf57fe8d65e71fe2317840ceb817472b70b756607274947c31f43df4d [2021-12-15 17:12:47,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:12:47,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:12:47,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:12:47,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:12:47,046 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:12:47,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product20.cil.c [2021-12-15 17:12:47,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4892e1b22/7ea98de2f86a4bdf9afdc9bf385326a0/FLAGd84f7ff06 [2021-12-15 17:12:47,588 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:12:47,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product20.cil.c [2021-12-15 17:12:47,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4892e1b22/7ea98de2f86a4bdf9afdc9bf385326a0/FLAGd84f7ff06 [2021-12-15 17:12:47,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4892e1b22/7ea98de2f86a4bdf9afdc9bf385326a0 [2021-12-15 17:12:47,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:12:47,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:12:47,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:12:47,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:12:47,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:12:47,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:12:47" (1/1) ... [2021-12-15 17:12:47,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5f22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:47, skipping insertion in model container [2021-12-15 17:12:47,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:12:47" (1/1) ... [2021-12-15 17:12:47,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:12:47,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:12:48,368 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/elevator_spec1_product20.cil.c[45414,45427] [2021-12-15 17:12:48,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:12:48,438 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:12:48,486 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/elevator_spec1_product20.cil.c[45414,45427] [2021-12-15 17:12:48,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:12:48,516 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:12:48,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48 WrapperNode [2021-12-15 17:12:48,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:12:48,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:12:48,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:12:48,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:12:48,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,723 INFO L137 Inliner]: procedures = 96, calls = 347, calls flagged for inlining = 199, calls inlined = 556, statements flattened = 17135 [2021-12-15 17:12:48,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:12:48,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:12:48,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:12:48,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:12:48,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:48,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:49,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:12:49,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:12:49,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:12:49,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:12:49,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (1/1) ... [2021-12-15 17:12:49,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:12:49,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:12:49,061 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) [2021-12-15 17:12:49,078 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 [2021-12-15 17:12:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:12:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:12:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:12:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:12:49,261 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:12:49,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:12:54,198 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:12:54,240 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:12:54,240 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:12:54,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:12:54 BoogieIcfgContainer [2021-12-15 17:12:54,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:12:54,247 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:12:54,248 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:12:54,251 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:12:54,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:54,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:12:47" (1/3) ... [2021-12-15 17:12:54,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b83bc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:12:54, skipping insertion in model container [2021-12-15 17:12:54,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:54,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:12:48" (2/3) ... [2021-12-15 17:12:54,255 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b83bc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:12:54, skipping insertion in model container [2021-12-15 17:12:54,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:54,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:12:54" (3/3) ... [2021-12-15 17:12:54,257 INFO L388 chiAutomizerObserver]: Analyzing ICFG elevator_spec1_product20.cil.c [2021-12-15 17:12:54,306 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:12:54,306 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:12:54,306 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:12:54,307 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:12:54,307 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:12:54,307 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:12:54,307 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:12:54,307 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:12:54,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4876 states, 4875 states have (on average 1.8668717948717948) internal successors, (9101), 4875 states have internal predecessors, (9101), 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) [2021-12-15 17:12:54,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2390 [2021-12-15 17:12:54,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:12:54,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:12:54,531 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:54,531 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, 1] [2021-12-15 17:12:54,531 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:12:54,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4876 states, 4875 states have (on average 1.8668717948717948) internal successors, (9101), 4875 states have internal predecessors, (9101), 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) [2021-12-15 17:12:54,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2390 [2021-12-15 17:12:54,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:12:54,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:12:54,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:54,604 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, 1] [2021-12-15 17:12:54,614 INFO L791 eck$LassoCheckResult]: Stem: 3066#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 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(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 37);~weight~0 := 0;~maximumWeight~0 := 100;~executiveFloor~0 := 4;~blocked~0 := 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 12;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~landingButtons_spc1_0~0 := 0;~landingButtons_spc1_1~0 := 0;~landingButtons_spc1_2~0 := 0;~landingButtons_spc1_3~0 := 0;~landingButtons_spc1_4~0 := 0; 4756#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret129#1, main_~retValue_acc~26#1, main_~tmp~27#1;havoc main_~retValue_acc~26#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 398#L2047true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4877#L2040true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~21#1;havoc valid_product_~retValue_acc~21#1;valid_product_~retValue_acc~21#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~21#1; 1680#L2055true main_#t~ret129#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret129#1;havoc main_#t~ret129#1; 4010#L3167true assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 2375#L3140true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification1_spec__1 } true;~landingButtons_spc1_0~0 := 0;~landingButtons_spc1_1~0 := 0;~landingButtons_spc1_2~0 := 0;~landingButtons_spc1_3~0 := 0;~landingButtons_spc1_4~0 := 0; 3752#L3195true assume { :end_inline___utac_acc__Specification1_spec__1 } true;assume { :begin_inline_test } true;assume { :begin_inline_bigMacCall } true;havoc bigMacCall_#t~ret122#1, bigMacCall_~tmp~24#1;havoc bigMacCall_~tmp~24#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 5;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 3576#L3405true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 2721#L3430true bigMacCall_#t~ret122#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;bigMacCall_~tmp~24#1 := bigMacCall_#t~ret122#1;havoc bigMacCall_#t~ret122#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 5, bigMacCall_~tmp~24#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 1703#L2521true assume 0 == initPersonOnFloor_~floor#1; 1268#L2522true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 1783#L2629-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1, callOnFloor_~__utac__ad__arg1~0#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1;havoc callOnFloor_~__utac__ad__arg1~0#1;callOnFloor_~__utac__ad__arg1~0#1 := callOnFloor_~floorID#1;assume { :begin_inline___utac_acc__Specification1_spec__2 } true;__utac_acc__Specification1_spec__2_#in~floor#1 := callOnFloor_~__utac__ad__arg1~0#1;havoc __utac_acc__Specification1_spec__2_~floor#1;__utac_acc__Specification1_spec__2_~floor#1 := __utac_acc__Specification1_spec__2_#in~floor#1; 501#L3202true assume 0 == __utac_acc__Specification1_spec__2_~floor#1;~landingButtons_spc1_0~0 := 1; 1311#L3214-2true assume { :end_inline___utac_acc__Specification1_spec__2 } true; 2789#L2313true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 3858#L2325-2true assume { :end_inline_callOnFloor } true; 2340#L2665true assume { :end_inline_initPersonOnFloor } true; 1296#L2945true assume { :end_inline_bigMacCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret119#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 3509#L3405-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 438#L3430-1true angelinaCall_#t~ret119#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret119#1;havoc angelinaCall_#t~ret119#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 3990#L2521-1true assume 0 == initPersonOnFloor_~floor#1; 4668#L2522-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 2280#L2629-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1, callOnFloor_~__utac__ad__arg1~0#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1;havoc callOnFloor_~__utac__ad__arg1~0#1;callOnFloor_~__utac__ad__arg1~0#1 := callOnFloor_~floorID#1;assume { :begin_inline___utac_acc__Specification1_spec__2 } true;__utac_acc__Specification1_spec__2_#in~floor#1 := callOnFloor_~__utac__ad__arg1~0#1;havoc __utac_acc__Specification1_spec__2_~floor#1;__utac_acc__Specification1_spec__2_~floor#1 := __utac_acc__Specification1_spec__2_#in~floor#1; 2814#L3202-2true assume 0 == __utac_acc__Specification1_spec__2_~floor#1;~landingButtons_spc1_0~0 := 1; 168#L3214-5true assume { :end_inline___utac_acc__Specification1_spec__2 } true; 2854#L2313-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4317#L2325-5true assume { :end_inline_callOnFloor } true; 1347#L2665-1true assume { :end_inline_initPersonOnFloor } true; 3170#L2912true assume { :end_inline_angelinaCall } true;assume { :begin_inline_cleanup } true;havoc cleanup_#t~ret123#1, cleanup_#t~ret124#1, cleanup_~i~3#1, cleanup_~tmp~25#1, cleanup_~tmp___0~10#1, cleanup_~__cil_tmp4~2#1;havoc cleanup_~i~3#1;havoc cleanup_~tmp~25#1;havoc cleanup_~tmp___0~10#1;havoc cleanup_~__cil_tmp4~2#1;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret56#1, timeShift_~tmp~11#1;havoc timeShift_~tmp~11#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~2#1;havoc areDoorsOpen_~retValue_acc~2#1;areDoorsOpen_~retValue_acc~2#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~2#1; 1568#L303true timeShift_#t~ret56#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~11#1 := timeShift_#t~ret56#1;havoc timeShift_#t~ret56#1; 989#L1246true assume 0 != timeShift_~tmp~11#1; 1535#L1247true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 457#L1246-1true assume { :begin_inline___utac_acc__Specification1_spec__3 } true;havoc __utac_acc__Specification1_spec__3_#t~ret130#1, __utac_acc__Specification1_spec__3_#t~ret131#1, __utac_acc__Specification1_spec__3_#t~ret132#1, __utac_acc__Specification1_spec__3_#t~ret133#1, __utac_acc__Specification1_spec__3_#t~ret134#1, __utac_acc__Specification1_spec__3_#t~ret135#1, __utac_acc__Specification1_spec__3_~floor~0#1, __utac_acc__Specification1_spec__3_~tmp~28#1, __utac_acc__Specification1_spec__3_~tmp___0~12#1, __utac_acc__Specification1_spec__3_~tmp___1~8#1, __utac_acc__Specification1_spec__3_~tmp___2~6#1, __utac_acc__Specification1_spec__3_~tmp___3~5#1, __utac_acc__Specification1_spec__3_~tmp___4~3#1;havoc __utac_acc__Specification1_spec__3_~floor~0#1;havoc __utac_acc__Specification1_spec__3_~tmp~28#1;havoc __utac_acc__Specification1_spec__3_~tmp___0~12#1;havoc __utac_acc__Specification1_spec__3_~tmp___1~8#1;havoc __utac_acc__Specification1_spec__3_~tmp___2~6#1;havoc __utac_acc__Specification1_spec__3_~tmp___3~5#1;havoc __utac_acc__Specification1_spec__3_~tmp___4~3#1;assume { :begin_inline_getCurrentFloorID } true;havoc getCurrentFloorID_#res#1;havoc getCurrentFloorID_~retValue_acc~1#1;havoc getCurrentFloorID_~retValue_acc~1#1;getCurrentFloorID_~retValue_acc~1#1 := ~currentFloorID~0;getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~1#1; 2132#L294-6true __utac_acc__Specification1_spec__3_#t~ret130#1 := getCurrentFloorID_#res#1;assume { :end_inline_getCurrentFloorID } true;__utac_acc__Specification1_spec__3_~tmp~28#1 := __utac_acc__Specification1_spec__3_#t~ret130#1;havoc __utac_acc__Specification1_spec__3_#t~ret130#1;__utac_acc__Specification1_spec__3_~floor~0#1 := __utac_acc__Specification1_spec__3_~tmp~28#1; 2523#L3240true assume 0 == __utac_acc__Specification1_spec__3_~floor~0#1; 1686#L3241true assume 0 != ~landingButtons_spc1_0~0;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~2#1;havoc areDoorsOpen_~retValue_acc~2#1;areDoorsOpen_~retValue_acc~2#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~2#1; 3339#L303-1true __utac_acc__Specification1_spec__3_#t~ret131#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;__utac_acc__Specification1_spec__3_~tmp___4~3#1 := __utac_acc__Specification1_spec__3_#t~ret131#1;havoc __utac_acc__Specification1_spec__3_#t~ret131#1; 3814#L3245true assume 0 != __utac_acc__Specification1_spec__3_~tmp___4~3#1;~landingButtons_spc1_0~0 := 0; 239#L3300true assume { :end_inline___utac_acc__Specification1_spec__3 } true; 4618#L1264true assume { :end_inline_timeShift } true;cleanup_~i~3#1 := 0; 4139#L2972-2true [2021-12-15 17:12:54,627 INFO L793 eck$LassoCheckResult]: Loop: 4139#L2972-2true assume !false; 3005#L2973true cleanup_~__cil_tmp4~2#1 := ~cleanupTimeShifts~0 - 1; 3557#L2976true assume cleanup_~i~3#1 < cleanup_~__cil_tmp4~2#1;assume { :begin_inline_isBlocked } true;havoc isBlocked_#res#1;havoc isBlocked_~retValue_acc~0#1;havoc isBlocked_~retValue_acc~0#1;isBlocked_~retValue_acc~0#1 := ~blocked~0;isBlocked_#res#1 := isBlocked_~retValue_acc~0#1; 996#L141true cleanup_#t~ret123#1 := isBlocked_#res#1;assume { :end_inline_isBlocked } true;cleanup_~tmp___0~10#1 := cleanup_#t~ret123#1;havoc cleanup_#t~ret123#1; 2125#L2980true assume 1 != cleanup_~tmp___0~10#1; 2440#L2980-1true assume { :begin_inline_isIdle } true;havoc isIdle_#res#1;havoc isIdle_#t~ret11#1, isIdle_~retValue_acc~7#1, isIdle_~tmp~3#1;havoc isIdle_~retValue_acc~7#1;havoc isIdle_~tmp~3#1;assume { :begin_inline_anyStopRequested } true;havoc anyStopRequested_#res#1;havoc anyStopRequested_#t~ret6#1, anyStopRequested_#t~ret7#1, anyStopRequested_#t~ret8#1, anyStopRequested_#t~ret9#1, anyStopRequested_#t~ret10#1, anyStopRequested_~retValue_acc~6#1, anyStopRequested_~tmp~2#1, anyStopRequested_~tmp___0~0#1, anyStopRequested_~tmp___1~0#1, anyStopRequested_~tmp___2~0#1, anyStopRequested_~tmp___3~0#1;havoc anyStopRequested_~retValue_acc~6#1;havoc anyStopRequested_~tmp~2#1;havoc anyStopRequested_~tmp___0~0#1;havoc anyStopRequested_~tmp___1~0#1;havoc anyStopRequested_~tmp___2~0#1;havoc anyStopRequested_~tmp___3~0#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := 0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~22#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~22#1; 4232#L2245-50true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~22#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~22#1; 1277#L2272-50true anyStopRequested_#t~ret6#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;anyStopRequested_~tmp___3~0#1 := anyStopRequested_#t~ret6#1;havoc anyStopRequested_#t~ret6#1; 1980#L402true assume 0 != anyStopRequested_~tmp___3~0#1;anyStopRequested_~retValue_acc~6#1 := 1;anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~6#1; 3975#L466true isIdle_#t~ret11#1 := anyStopRequested_#res#1;assume { :end_inline_anyStopRequested } true;isIdle_~tmp~3#1 := isIdle_#t~ret11#1;havoc isIdle_#t~ret11#1;isIdle_~retValue_acc~7#1 := (if 0 == isIdle_~tmp~3#1 then 1 else 0);isIdle_#res#1 := isIdle_~retValue_acc~7#1; 3012#L479true cleanup_#t~ret124#1 := isIdle_#res#1;assume { :end_inline_isIdle } true;cleanup_~tmp~25#1 := cleanup_#t~ret124#1;havoc cleanup_#t~ret124#1; 1613#L2992true assume !(0 != cleanup_~tmp~25#1);assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret56#1, timeShift_~tmp~11#1;havoc timeShift_~tmp~11#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~2#1;havoc areDoorsOpen_~retValue_acc~2#1;areDoorsOpen_~retValue_acc~2#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~2#1; 2499#L303-6true timeShift_#t~ret56#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~11#1 := timeShift_#t~ret56#1;havoc timeShift_#t~ret56#1; 2506#L1246-2true assume 0 != timeShift_~tmp~11#1; 4758#L1247-3true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 4245#L1246-3true assume { :begin_inline___utac_acc__Specification1_spec__3 } true;havoc __utac_acc__Specification1_spec__3_#t~ret130#1, __utac_acc__Specification1_spec__3_#t~ret131#1, __utac_acc__Specification1_spec__3_#t~ret132#1, __utac_acc__Specification1_spec__3_#t~ret133#1, __utac_acc__Specification1_spec__3_#t~ret134#1, __utac_acc__Specification1_spec__3_#t~ret135#1, __utac_acc__Specification1_spec__3_~floor~0#1, __utac_acc__Specification1_spec__3_~tmp~28#1, __utac_acc__Specification1_spec__3_~tmp___0~12#1, __utac_acc__Specification1_spec__3_~tmp___1~8#1, __utac_acc__Specification1_spec__3_~tmp___2~6#1, __utac_acc__Specification1_spec__3_~tmp___3~5#1, __utac_acc__Specification1_spec__3_~tmp___4~3#1;havoc __utac_acc__Specification1_spec__3_~floor~0#1;havoc __utac_acc__Specification1_spec__3_~tmp~28#1;havoc __utac_acc__Specification1_spec__3_~tmp___0~12#1;havoc __utac_acc__Specification1_spec__3_~tmp___1~8#1;havoc __utac_acc__Specification1_spec__3_~tmp___2~6#1;havoc __utac_acc__Specification1_spec__3_~tmp___3~5#1;havoc __utac_acc__Specification1_spec__3_~tmp___4~3#1;assume { :begin_inline_getCurrentFloorID } true;havoc getCurrentFloorID_#res#1;havoc getCurrentFloorID_~retValue_acc~1#1;havoc getCurrentFloorID_~retValue_acc~1#1;getCurrentFloorID_~retValue_acc~1#1 := ~currentFloorID~0;getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~1#1; 3294#L294-13true __utac_acc__Specification1_spec__3_#t~ret130#1 := getCurrentFloorID_#res#1;assume { :end_inline_getCurrentFloorID } true;__utac_acc__Specification1_spec__3_~tmp~28#1 := __utac_acc__Specification1_spec__3_#t~ret130#1;havoc __utac_acc__Specification1_spec__3_#t~ret130#1;__utac_acc__Specification1_spec__3_~floor~0#1 := __utac_acc__Specification1_spec__3_~tmp~28#1; 4699#L3240-1true assume 0 == __utac_acc__Specification1_spec__3_~floor~0#1; 3106#L3241-1true assume 0 != ~landingButtons_spc1_0~0;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~2#1;havoc areDoorsOpen_~retValue_acc~2#1;areDoorsOpen_~retValue_acc~2#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~2#1; 715#L303-7true __utac_acc__Specification1_spec__3_#t~ret131#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;__utac_acc__Specification1_spec__3_~tmp___4~3#1 := __utac_acc__Specification1_spec__3_#t~ret131#1;havoc __utac_acc__Specification1_spec__3_#t~ret131#1; 1403#L3245-2true assume 0 != __utac_acc__Specification1_spec__3_~tmp___4~3#1;~landingButtons_spc1_0~0 := 0; 1289#L3300-1true assume { :end_inline___utac_acc__Specification1_spec__3 } true; 55#L1264-1true assume { :end_inline_timeShift } true;cleanup_~i~3#1 := 1 + cleanup_~i~3#1; 4139#L2972-2true [2021-12-15 17:12:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash 478846726, now seen corresponding path program 1 times [2021-12-15 17:12:54,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:54,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354071775] [2021-12-15 17:12:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:54,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:12:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:12:54,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:12:54,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354071775] [2021-12-15 17:12:54,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354071775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:12:54,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:12:54,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:12:54,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342107296] [2021-12-15 17:12:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:12:54,863 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:12:54,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash -187690439, now seen corresponding path program 1 times [2021-12-15 17:12:54,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:54,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844673006] [2021-12-15 17:12:54,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:54,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:54,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:12:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:54,941 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:12:55,441 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:818) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:12:55,445 INFO L158 Benchmark]: Toolchain (without parser) took 7540.43ms. Allocated memory was 100.7MB in the beginning and 432.0MB in the end (delta: 331.4MB). Free memory was 69.0MB in the beginning and 309.5MB in the end (delta: -240.5MB). Peak memory consumption was 245.4MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,445 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:12:55,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.70ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 49.6MB in the end (delta: 19.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.32ms. Allocated memory is still 100.7MB. Free memory was 49.6MB in the beginning and 43.8MB in the end (delta: 5.8MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,447 INFO L158 Benchmark]: Boogie Preprocessor took 296.64ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 43.8MB in the beginning and 93.0MB in the end (delta: -49.2MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,448 INFO L158 Benchmark]: RCFGBuilder took 5224.72ms. Allocated memory was 161.5MB in the beginning and 432.0MB in the end (delta: 270.5MB). Free memory was 93.0MB in the beginning and 272.9MB in the end (delta: -179.9MB). Peak memory consumption was 160.5MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,448 INFO L158 Benchmark]: BuchiAutomizer took 1195.62ms. Allocated memory is still 432.0MB. Free memory was 271.8MB in the beginning and 309.5MB in the end (delta: -37.7MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2021-12-15 17:12:55,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.70ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 49.6MB in the end (delta: 19.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.32ms. Allocated memory is still 100.7MB. Free memory was 49.6MB in the beginning and 43.8MB in the end (delta: 5.8MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 296.64ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 43.8MB in the beginning and 93.0MB in the end (delta: -49.2MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * RCFGBuilder took 5224.72ms. Allocated memory was 161.5MB in the beginning and 432.0MB in the end (delta: 270.5MB). Free memory was 93.0MB in the beginning and 272.9MB in the end (delta: -179.9MB). Peak memory consumption was 160.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1195.62ms. Allocated memory is still 432.0MB. Free memory was 271.8MB in the beginning and 309.5MB in the end (delta: -37.7MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:12:55,514 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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable