./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product30.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_spec13_product30.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:11:43,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:11:43,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:11:43,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:11:43,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:11:43,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:11:43,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:11:43,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:11:43,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:11:43,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:11:43,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:11:43,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:11:43,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:11:43,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:11:43,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:11:43,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:11:43,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:11:43,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:11:43,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:11:43,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:11:43,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:11:43,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:11:43,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:11:43,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:11:43,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:11:43,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:11:43,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:11:43,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:11:43,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:11:43,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:11:43,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:11:43,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:11:43,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:11:43,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:11:43,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:11:43,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:11:43,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:11:43,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:11:43,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:11:43,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:11:43,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:11:43,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:11:43,665 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:11:43,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:11:43,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:11:43,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:11:43,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:11:43,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:11:43,667 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:11:43,667 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:11:43,668 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:11:43,668 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:11:43,668 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:11:43,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:11:43,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:11:43,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:11:43,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:11:43,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:11:43,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:11:43,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:11:43,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:11:43,672 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:11:43,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2021-12-15 17:11:43,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:11:43,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:11:43,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:11:43,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:11:43,907 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:11:43,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2021-12-15 17:11:43,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e4907fe/d220c6936ea84d7fba8b0b5ce7319ffc/FLAG6c62d0776 [2021-12-15 17:11:44,407 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:11:44,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2021-12-15 17:11:44,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e4907fe/d220c6936ea84d7fba8b0b5ce7319ffc/FLAG6c62d0776 [2021-12-15 17:11:44,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e4907fe/d220c6936ea84d7fba8b0b5ce7319ffc [2021-12-15 17:11:44,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:11:44,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:11:44,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:11:44,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:11:44,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:11:44,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:11:44" (1/1) ... [2021-12-15 17:11:44,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323440ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:44, skipping insertion in model container [2021-12-15 17:11:44,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:11:44" (1/1) ... [2021-12-15 17:11:44,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:11:44,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:11:45,083 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_spec13_product30.cil.c[61393,61406] [2021-12-15 17:11:45,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:11:45,132 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:11:45,193 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_spec13_product30.cil.c[61393,61406] [2021-12-15 17:11:45,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:11:45,239 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:11:45,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45 WrapperNode [2021-12-15 17:11:45,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:11:45,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:11:45,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:11:45,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:11:45,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:45,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:45,889 INFO L137 Inliner]: procedures = 93, calls = 346, calls flagged for inlining = 198, calls inlined = 1875, statements flattened = 66503 [2021-12-15 17:11:45,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:11:45,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:11:45,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:11:45,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:11:45,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:45,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:11:46,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:11:46,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:11:46,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:11:46,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (1/1) ... [2021-12-15 17:11:46,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:11:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:11:46,983 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 17:11:46,988 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 17:11:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:11:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:11:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:11:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:11:47,145 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:11:47,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:12:01,930 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:12:02,046 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:12:02,046 INFO L301 CfgBuilder]: Removed 61 assume(true) statements. [2021-12-15 17:12:02,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:12:02 BoogieIcfgContainer [2021-12-15 17:12:02,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:12:02,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:12:02,076 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:12:02,079 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:12:02,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:02,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:11:44" (1/3) ... [2021-12-15 17:12:02,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:12:02, skipping insertion in model container [2021-12-15 17:12:02,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:02,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:45" (2/3) ... [2021-12-15 17:12:02,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:12:02, skipping insertion in model container [2021-12-15 17:12:02,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:12:02,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:12:02" (3/3) ... [2021-12-15 17:12:02,082 INFO L388 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2021-12-15 17:12:02,132 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:12:02,133 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:12:02,133 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:12:02,133 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:12:02,133 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:12:02,133 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:12:02,133 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:12:02,133 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:12:02,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 17:12:02,840 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2021-12-15 17:12:02,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:12:02,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:12:02,849 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] [2021-12-15 17:12:02,850 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:02,850 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:12:02,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 17:12:03,016 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2021-12-15 17:12:03,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:12:03,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:12:03,019 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] [2021-12-15 17:12:03,019 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:03,028 INFO L791 eck$LassoCheckResult]: Stem: 7195#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(32, 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);~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;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~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; 4317#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3927#L2983true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16724#L2976true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 9522#L2991true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 8971#L1277true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 6934#L1250true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 2414#L95true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 11133#L120true aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 17132#L530true assume 0 == initPersonOnFloor_~floor#1; 11833#L531true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 14351#L638-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 13120#L322true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 12584#L334-2true assume { :end_inline_callOnFloor } true; 17702#L674true assume { :end_inline_initPersonOnFloor } true; 13050#L1006true assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 81#L95-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 14352#L120-1true angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 6972#L530-1true assume 0 == initPersonOnFloor_~floor#1; 13026#L531-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 10086#L638-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 2909#L322-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4321#L334-5true assume { :end_inline_callOnFloor } true; 9340#L674-1true assume { :end_inline_initPersonOnFloor } true; 5355#L1017true assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 4549#L1680true __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 17892#L851true assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 17123#L1637true timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 2412#L2587true assume 0 != timeShift_~tmp~24#1; 5434#L2588true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 17486#L2587-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 5073#L869true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 3638#L870true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 12371#L2807true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 6307#L2811-2true [2021-12-15 17:12:03,028 INFO L793 eck$LassoCheckResult]: Loop: 6307#L2811-2true assume !false; 4904#L2812true assume existInLiftCallsInDirection_~i~3#1 < 5; 508#L2813true assume !(0 == existInLiftCallsInDirection_~i~3#1); 7017#L2826true assume !(1 == existInLiftCallsInDirection_~i~3#1); 7241#L2835true assume !(2 == existInLiftCallsInDirection_~i~3#1); 3717#L2844true assume !(3 == existInLiftCallsInDirection_~i~3#1); 9526#L2853true assume !(4 == existInLiftCallsInDirection_~i~3#1); 976#L2854-1true existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 6307#L2811-2true [2021-12-15 17:12:03,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1529622645, now seen corresponding path program 1 times [2021-12-15 17:12:03,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:03,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268080126] [2021-12-15 17:12:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:03,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:12:03,265 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 17:12:03,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:12:03,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268080126] [2021-12-15 17:12:03,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268080126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:12:03,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:12:03,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:12:03,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400028189] [2021-12-15 17:12:03,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:12:03,271 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:12:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1374005635, now seen corresponding path program 1 times [2021-12-15 17:12:03,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:03,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504723784] [2021-12-15 17:12:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:03,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:03,280 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:12:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:03,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:12:03,354 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 17:12:03,357 INFO L158 Benchmark]: Toolchain (without parser) took 18647.84ms. Allocated memory was 127.9MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 96.3MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 430.5MB. Max. memory is 16.1GB. [2021-12-15 17:12:03,357 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 44.2MB in the beginning and 44.2MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:12:03,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.78ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 77.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 17:12:03,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 649.60ms. Allocated memory was 127.9MB in the beginning and 220.2MB in the end (delta: 92.3MB). Free memory was 77.8MB in the beginning and 120.9MB in the end (delta: -43.1MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2021-12-15 17:12:03,359 INFO L158 Benchmark]: Boogie Preprocessor took 1057.04ms. Allocated memory was 220.2MB in the beginning and 440.4MB in the end (delta: 220.2MB). Free memory was 120.9MB in the beginning and 238.3MB in the end (delta: -117.4MB). Peak memory consumption was 103.8MB. Max. memory is 16.1GB. [2021-12-15 17:12:03,359 INFO L158 Benchmark]: RCFGBuilder took 15126.94ms. Allocated memory was 440.4MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 238.3MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 433.0MB. Max. memory is 16.1GB. [2021-12-15 17:12:03,360 INFO L158 Benchmark]: BuchiAutomizer took 1279.85ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.6GB in the end (delta: -79.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:12:03,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 44.2MB in the beginning and 44.2MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.78ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 77.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 649.60ms. Allocated memory was 127.9MB in the beginning and 220.2MB in the end (delta: 92.3MB). Free memory was 77.8MB in the beginning and 120.9MB in the end (delta: -43.1MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1057.04ms. Allocated memory was 220.2MB in the beginning and 440.4MB in the end (delta: 220.2MB). Free memory was 120.9MB in the beginning and 238.3MB in the end (delta: -117.4MB). Peak memory consumption was 103.8MB. Max. memory is 16.1GB. * RCFGBuilder took 15126.94ms. Allocated memory was 440.4MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 238.3MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 433.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 1279.85ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.6GB in the end (delta: -79.7MB). There was no memory consumed. 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 17:12:03,424 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