./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/eca-rers2012/Problem04_label57.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/eca-rers2012/Problem04_label57.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 38aa25e947c9aeec3b3f3e35d3468f9ff877b07f2e274d39775d21c39593400d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:08:17,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:08:17,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:08:17,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:08:17,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:08:17,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:08:17,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:08:17,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:08:17,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:08:17,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:08:17,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:08:17,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:08:17,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:08:17,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:08:17,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:08:17,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:08:17,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:08:17,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:08:17,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:08:17,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:08:17,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:08:17,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:08:17,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:08:17,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:08:17,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:08:17,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:08:17,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:08:17,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:08:17,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:08:17,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:08:17,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:08:17,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:08:17,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:08:17,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:08:17,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:08:17,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:08:17,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:08:17,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:08:17,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:08:17,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:08:17,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:08:17,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:08:17,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:08:17,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:08:17,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:08:17,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:08:17,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:08:17,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:08:17,539 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:08:17,539 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:08:17,539 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:08:17,540 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:08:17,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:08:17,541 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:08:17,541 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:08:17,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:08:17,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:08:17,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:08:17,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:08:17,543 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:08:17,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:08:17,544 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:08:17,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:08:17,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:08:17,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:08:17,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:08:17,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:08:17,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:08:17,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:08:17,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:08:17,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38aa25e947c9aeec3b3f3e35d3468f9ff877b07f2e274d39775d21c39593400d [2021-12-15 17:08:17,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:08:17,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:08:17,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:08:17,768 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:08:17,769 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:08:17,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem04_label57.c [2021-12-15 17:08:17,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc02b36/8510545d9f724a3faba67de4e625d178/FLAG9c4814f4f [2021-12-15 17:08:18,481 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:08:18,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label57.c [2021-12-15 17:08:18,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc02b36/8510545d9f724a3faba67de4e625d178/FLAG9c4814f4f [2021-12-15 17:08:18,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdc02b36/8510545d9f724a3faba67de4e625d178 [2021-12-15 17:08:18,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:08:18,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:08:18,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:08:18,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:08:18,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:08:18,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:08:18" (1/1) ... [2021-12-15 17:08:18,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae31c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:18, skipping insertion in model container [2021-12-15 17:08:18,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:08:18" (1/1) ... [2021-12-15 17:08:18,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:08:18,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:08:19,735 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/eca-rers2012/Problem04_label57.c[181554,181567] [2021-12-15 17:08:19,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:08:19,756 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:08:20,184 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/eca-rers2012/Problem04_label57.c[181554,181567] [2021-12-15 17:08:20,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:08:20,212 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:08:20,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20 WrapperNode [2021-12-15 17:08:20,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:08:20,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:08:20,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:08:20,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:08:20,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,445 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5567 [2021-12-15 17:08:20,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:08:20,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:08:20,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:08:20,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:08:20,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:08:20,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:08:20,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:08:20,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:08:20,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (1/1) ... [2021-12-15 17:08:20,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:08:20,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:08:20,808 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 17:08:20,810 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 17:08:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:08:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:08:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:08:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:08:20,904 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:08:20,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:08:23,892 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:08:23,912 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:08:23,915 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:08:23,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:08:23 BoogieIcfgContainer [2021-12-15 17:08:23,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:08:23,918 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:08:23,918 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:08:23,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:08:23,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:23,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:08:18" (1/3) ... [2021-12-15 17:08:23,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0ff776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:08:23, skipping insertion in model container [2021-12-15 17:08:23,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:23,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:20" (2/3) ... [2021-12-15 17:08:23,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e0ff776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:08:23, skipping insertion in model container [2021-12-15 17:08:23,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:23,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:08:23" (3/3) ... [2021-12-15 17:08:23,924 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem04_label57.c [2021-12-15 17:08:23,956 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:08:23,956 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:08:23,956 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:08:23,956 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:08:23,956 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:08:23,957 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:08:23,957 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:08:23,957 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:08:23,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 884 states, 883 states have (on average 1.9218573046432617) internal successors, (1697), 883 states have internal predecessors, (1697), 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 17:08:24,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 879 [2021-12-15 17:08:24,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:08:24,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:08:24,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:08:24,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:08:24,048 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:08:24,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 884 states, 883 states have (on average 1.9218573046432617) internal successors, (1697), 883 states have internal predecessors, (1697), 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 17:08:24,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 879 [2021-12-15 17:08:24,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:08:24,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:08:24,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:08:24,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:08:24,068 INFO L791 eck$LassoCheckResult]: Stem: 439#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(20, 2);call #Ultimate.allocInit(12, 3);~f~0 := 6;~e~0 := 5;~d~0 := 4;~b~0 := 2;~a~0 := 1;~c~0 := 3;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a3~0 := 1;~a4~0 := 17;~a25~0 := 1;~a1~0 := 1;~a26~0 := 18;~a28~0 := 15;~a7~0 := 1;~a14~0 := 19; 802#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~ret13#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 765#L4826-2true [2021-12-15 17:08:24,069 INFO L793 eck$LassoCheckResult]: Loop: 765#L4826-2true assume !false;havoc main_~input~0#1;main_~input~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 198#L4831true assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 660#L50true assume (1 == ~a25~0 && 1 == ~a1~0 && 5 == calculate_output_~input#1 && (((((17 == ~a4~0 && 19 == ~a26~0) && 17 == ~a28~0) && !(1 == ~a7~0)) && 20 == ~a14~0) || ((1 == ~a7~0 && (17 == ~a26~0 && 18 == ~a4~0) && 15 == ~a28~0) && 18 == ~a14~0))) && 1 == ~a3~0;~a28~0 := 15;~a26~0 := 17;~a4~0 := 16;~a14~0 := 18;~a7~0 := 1;calculate_output_#res#1 := -1; 463#L1382true main_#t~ret13#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret13#1;havoc main_#t~ret13#1; 765#L4826-2true [2021-12-15 17:08:24,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:24,074 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:08:24,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:24,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095220397] [2021-12-15 17:08:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:24,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:24,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:08:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:24,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:08:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1271450, now seen corresponding path program 1 times [2021-12-15 17:08:24,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:24,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985196748] [2021-12-15 17:08:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:24,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:24,263 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:08:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:24,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:08:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:24,297 INFO L85 PathProgramCache]: Analyzing trace with hash 889698652, now seen corresponding path program 1 times [2021-12-15 17:08:24,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:24,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605474609] [2021-12-15 17:08:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:24,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:08:24,397 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 17:08:24,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:08:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605474609] [2021-12-15 17:08:24,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605474609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:08:24,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:08:24,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:08:24,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904149612] [2021-12-15 17:08:24,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:08:24,716 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$LassoCheckResult.(LassoCheck.java:834) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 17:08:24,724 INFO L158 Benchmark]: Toolchain (without parser) took 6094.07ms. Allocated memory was 109.1MB in the beginning and 442.5MB in the end (delta: 333.4MB). Free memory was 61.4MB in the beginning and 198.8MB in the end (delta: -137.5MB). Peak memory consumption was 196.0MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,725 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:08:24,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1582.29ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 60.9MB in the beginning and 69.3MB in the end (delta: -8.4MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 230.74ms. Allocated memory is still 132.1MB. Free memory was 69.3MB in the beginning and 51.9MB in the end (delta: 17.4MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,729 INFO L158 Benchmark]: Boogie Preprocessor took 335.14ms. Allocated memory was 132.1MB in the beginning and 239.1MB in the end (delta: 107.0MB). Free memory was 51.9MB in the beginning and 147.7MB in the end (delta: -95.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,729 INFO L158 Benchmark]: RCFGBuilder took 3135.14ms. Allocated memory was 239.1MB in the beginning and 442.5MB in the end (delta: 203.4MB). Free memory was 147.7MB in the beginning and 241.8MB in the end (delta: -94.2MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,730 INFO L158 Benchmark]: BuchiAutomizer took 804.23ms. Allocated memory is still 442.5MB. Free memory was 241.8MB in the beginning and 198.8MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-12-15 17:08:24,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1582.29ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 60.9MB in the beginning and 69.3MB in the end (delta: -8.4MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 230.74ms. Allocated memory is still 132.1MB. Free memory was 69.3MB in the beginning and 51.9MB in the end (delta: 17.4MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 335.14ms. Allocated memory was 132.1MB in the beginning and 239.1MB in the end (delta: 107.0MB). Free memory was 51.9MB in the beginning and 147.7MB in the end (delta: -95.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3135.14ms. Allocated memory was 239.1MB in the beginning and 442.5MB in the end (delta: 203.4MB). Free memory was 147.7MB in the beginning and 241.8MB in the end (delta: -94.2MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 804.23ms. Allocated memory is still 442.5MB. Free memory was 241.8MB in the beginning and 198.8MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. 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 17:08:24,783 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