./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/WhilePart.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/termination-restricted-15/WhilePart.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:58:19,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:58:19,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:58:19,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:58:19,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:58:19,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:58:19,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:58:19,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:58:19,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:58:19,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:58:19,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:58:19,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:58:19,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:58:19,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:58:19,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:58:19,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:58:19,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:58:19,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:58:19,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:58:19,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:58:19,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:58:19,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:58:19,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:58:19,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:58:19,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:58:19,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:58:19,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:58:19,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:58:19,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:58:19,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:58:19,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:58:19,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:58:19,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:58:19,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:58:19,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:58:19,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:58:19,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:58:19,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:58:19,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:58:19,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:58:19,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:58:19,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:58:19,497 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:58:19,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:58:19,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:58:19,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:58:19,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:58:19,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:58:19,498 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:58:19,499 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:58:19,499 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:58:19,499 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:58:19,500 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:58:19,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:58:19,500 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:58:19,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:58:19,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:58:19,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:58:19,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:58:19,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:58:19,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:58:19,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:58:19,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:58:19,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:58:19,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:58:19,504 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:58:19,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 [2021-12-21 21:58:19,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:58:19,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:58:19,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:58:19,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:58:19,690 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:58:19,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/WhilePart.c [2021-12-21 21:58:19,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc1431c1/72595b5c9d8c47f2b129020fc54833eb/FLAG0e50a6070 [2021-12-21 21:58:20,070 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:58:20,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/WhilePart.c [2021-12-21 21:58:20,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc1431c1/72595b5c9d8c47f2b129020fc54833eb/FLAG0e50a6070 [2021-12-21 21:58:20,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc1431c1/72595b5c9d8c47f2b129020fc54833eb [2021-12-21 21:58:20,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:58:20,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:58:20,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:58:20,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:58:20,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:58:20,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4f479f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20, skipping insertion in model container [2021-12-21 21:58:20,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:58:20,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:58:20,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:58:20,209 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:58:20,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:58:20,223 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:58:20,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20 WrapperNode [2021-12-21 21:58:20,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:58:20,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:58:20,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:58:20,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:58:20,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,240 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2021-12-21 21:58:20,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:58:20,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:58:20,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:58:20,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:58:20,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:58:20,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:58:20,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:58:20,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:58:20,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (1/1) ... [2021-12-21 21:58:20,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:58:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:58:20,271 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) [2021-12-21 21:58:20,286 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 [2021-12-21 21:58:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:58:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:58:20,327 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:58:20,328 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:58:20,388 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:58:20,402 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:58:20,402 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 21:58:20,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:58:20 BoogieIcfgContainer [2021-12-21 21:58:20,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:58:20,404 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:58:20,404 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:58:20,407 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:58:20,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:58:20,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:58:20" (1/3) ... [2021-12-21 21:58:20,409 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3454a152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:58:20, skipping insertion in model container [2021-12-21 21:58:20,409 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:58:20,410 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:58:20" (2/3) ... [2021-12-21 21:58:20,410 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3454a152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:58:20, skipping insertion in model container [2021-12-21 21:58:20,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:58:20,410 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:58:20" (3/3) ... [2021-12-21 21:58:20,412 INFO L388 chiAutomizerObserver]: Analyzing ICFG WhilePart.c [2021-12-21 21:58:20,442 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:58:20,443 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:58:20,443 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:58:20,443 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:58:20,443 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:58:20,443 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:58:20,443 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:58:20,443 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:58:20,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-12-21 21:58:20,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:58:20,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:58:20,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:58:20,466 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:58:20,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:58:20,466 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:58:20,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-12-21 21:58:20,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:58:20,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:58:20,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:58:20,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:58:20,467 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:58:20,472 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L10-2true [2021-12-21 21:58:20,472 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 > 5); 6#L10true assume !(main_~i~0#1 < 10); 4#L10-2true [2021-12-21 21:58:20,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:58:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 21:58:20,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:58:20,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336907424] [2021-12-21 21:58:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:58:20,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:58:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:58:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:58:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:58:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-12-21 21:58:20,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:58:20,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285013084] [2021-12-21 21:58:20,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:58:20,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:58:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:58:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,557 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:58:20,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:58:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-21 21:58:20,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:58:20,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482001709] [2021-12-21 21:58:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:58:20,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:58:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,563 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:58:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:58:20,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:58:20,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:58:20 BoogieIcfgContainer [2021-12-21 21:58:20,604 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:58:20,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:58:20,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:58:20,605 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:58:20,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:58:20" (3/4) ... [2021-12-21 21:58:20,607 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 21:58:20,625 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 21:58:20,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:58:20,626 INFO L158 Benchmark]: Toolchain (without parser) took 540.46ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 68.9MB in the end (delta: 16.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,627 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:58:20,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 137.15ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 95.3MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.73ms. Allocated memory is still 119.5MB. Free memory was 95.3MB in the beginning and 94.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:58:20,628 INFO L158 Benchmark]: Boogie Preprocessor took 9.33ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 93.2MB in the end (delta: 808.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,628 INFO L158 Benchmark]: RCFGBuilder took 152.40ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 85.6MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,629 INFO L158 Benchmark]: BuchiAutomizer took 200.55ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 70.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,629 INFO L158 Benchmark]: Witness Printer took 20.45ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:58:20,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 137.15ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 95.3MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.73ms. Allocated memory is still 119.5MB. Free memory was 95.3MB in the beginning and 94.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.33ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 93.2MB in the end (delta: 808.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 152.40ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 85.6MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 200.55ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 70.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 20.45ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=10, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39081986=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i > 5 [L10] COND FALSE !(i < 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 21:58:20,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)