./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/IntPath.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/IntPath.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 2b72dfebd4c79ba85f160ba6afde9f14f50064a660c2c64f182224d2f229f848 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:26:27,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:26:27,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:26:27,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:26:27,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:26:27,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:26:27,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:26:27,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:26:27,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:26:27,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:26:27,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:26:27,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:26:27,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:26:27,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:26:27,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:26:27,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:26:27,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:26:27,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:26:27,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:26:27,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:26:27,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:26:27,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:26:27,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:26:27,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:26:27,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:26:27,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:26:27,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:26:27,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:26:27,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:26:27,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:26:27,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:26:27,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:26:27,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:26:27,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:26:27,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:26:27,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:26:27,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:26:27,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:26:27,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:26:27,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:26:27,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:26:27,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:26:27,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:26:27,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:26:27,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:26:27,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:26:27,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:26:27,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:26:27,442 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:26:27,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:26:27,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:26:27,442 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:26:27,443 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:26:27,443 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:26:27,444 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:26:27,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:26:27,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:26:27,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:26:27,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:26:27,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:26:27,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:26:27,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:26:27,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:26:27,445 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:26:27,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:26:27,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:26:27,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:26:27,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:26:27,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:26:27,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:26:27,449 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:26:27,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b72dfebd4c79ba85f160ba6afde9f14f50064a660c2c64f182224d2f229f848 [2022-02-21 03:26:27,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:26:27,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:26:27,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:26:27,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:26:27,696 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:26:27,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/IntPath.c [2022-02-21 03:26:27,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f00b4863/de8785717c7b403fbef50385abd66814/FLAGea2369fc9 [2022-02-21 03:26:28,152 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:26:28,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/IntPath.c [2022-02-21 03:26:28,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f00b4863/de8785717c7b403fbef50385abd66814/FLAGea2369fc9 [2022-02-21 03:26:28,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f00b4863/de8785717c7b403fbef50385abd66814 [2022-02-21 03:26:28,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:26:28,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:26:28,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:26:28,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:26:28,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:26:28,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cc8650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28, skipping insertion in model container [2022-02-21 03:26:28,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:26:28,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:26:28,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:26:28,348 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:26:28,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:26:28,378 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:26:28,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28 WrapperNode [2022-02-21 03:26:28,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:26:28,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:26:28,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:26:28,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:26:28,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,401 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-02-21 03:26:28,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:26:28,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:26:28,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:26:28,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:26:28,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:26:28,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:26:28,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:26:28,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:26:28,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (1/1) ... [2022-02-21 03:26:28,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:26:28,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:26:28,443 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) [2022-02-21 03:26:28,445 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 [2022-02-21 03:26:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:26:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:26:28,513 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:26:28,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:26:28,567 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:26:28,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:26:28,574 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:26:28,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:26:28 BoogieIcfgContainer [2022-02-21 03:26:28,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:26:28,576 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:26:28,576 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:26:28,581 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:26:28,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:26:28,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:26:28" (1/3) ... [2022-02-21 03:26:28,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49a8ecaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:26:28, skipping insertion in model container [2022-02-21 03:26:28,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:26:28,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:26:28" (2/3) ... [2022-02-21 03:26:28,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49a8ecaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:26:28, skipping insertion in model container [2022-02-21 03:26:28,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:26:28,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:26:28" (3/3) ... [2022-02-21 03:26:28,585 INFO L388 chiAutomizerObserver]: Analyzing ICFG IntPath.c [2022-02-21 03:26:28,625 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:26:28,625 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:26:28,625 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:26:28,625 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:26:28,625 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:26:28,625 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:26:28,626 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:26:28,626 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:26:28,637 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) [2022-02-21 03:26:28,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:26:28,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:26:28,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:26:28,654 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:26:28,654 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:26:28,654 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:26:28,654 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) [2022-02-21 03:26:28,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:26:28,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:26:28,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:26:28,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:26:28,657 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:26:28,662 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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, main_~x~0#1, main_~y~0#1;havoc main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := 0;main_~y~0#1 := 0; 5#L13true assume !(main_~i~0#1 > 10);main_~y~0#1 := 1; 6#L18-1true [2022-02-21 03:26:28,663 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(main_~x~0#1 == main_~y~0#1); 6#L18-1true [2022-02-21 03:26:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:28,672 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-02-21 03:26:28,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:28,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123035778] [2022-02-21 03:26:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:28,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:28,775 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:26:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:28,792 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:26:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-02-21 03:26:28,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:28,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840252207] [2022-02-21 03:26:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:28,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:28,815 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:26:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:28,828 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:26:28,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-02-21 03:26:28,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:28,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483419194] [2022-02-21 03:26:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:26:28,910 INFO L290 TraceCheckUtils]: 0: Hoare triple {16#true} assume { :begin_inline_ULTIMATE.init } true; {16#true} is VALID [2022-02-21 03:26:28,911 INFO L290 TraceCheckUtils]: 1: Hoare triple {16#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~x~0#1, main_~y~0#1;havoc main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := 0;main_~y~0#1 := 0; {18#(<= |ULTIMATE.start_main_~x~0#1| 0)} is VALID [2022-02-21 03:26:28,912 INFO L290 TraceCheckUtils]: 2: Hoare triple {18#(<= |ULTIMATE.start_main_~x~0#1| 0)} assume !(main_~i~0#1 > 10);main_~y~0#1 := 1; {19#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|)} is VALID [2022-02-21 03:26:28,913 INFO L290 TraceCheckUtils]: 3: Hoare triple {19#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|)} assume !!(main_~x~0#1 == main_~y~0#1); {17#false} is VALID [2022-02-21 03:26:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:26:28,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:26:28,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483419194] [2022-02-21 03:26:28,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483419194] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:26:28,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:26:28,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:26:28,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977207449] [2022-02-21 03:26:28,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:26:28,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:26:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 03:26:28,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 03:26:28,970 INFO L87 Difference]: Start difference. First 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:26:29,057 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-02-21 03:26:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 03:26:29,059 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,065 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:26:29,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 13 transitions. [2022-02-21 03:26:29,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:26:29,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 4 states and 4 transitions. [2022-02-21 03:26:29,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-02-21 03:26:29,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-02-21 03:26:29,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2022-02-21 03:26:29,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:26:29,088 INFO L681 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-02-21 03:26:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2022-02-21 03:26:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2022-02-21 03:26:29,103 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:26:29,104 INFO L82 GeneralOperation]: Start isEquivalent. First operand 4 states and 4 transitions. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,104 INFO L74 IsIncluded]: Start isIncluded. First operand 4 states and 4 transitions. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,105 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:26:29,106 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2022-02-21 03:26:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2022-02-21 03:26:29,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:26:29,108 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:26:29,108 INFO L74 IsIncluded]: Start isIncluded. First operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 4 states and 4 transitions. [2022-02-21 03:26:29,108 INFO L87 Difference]: Start difference. First operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 4 states and 4 transitions. [2022-02-21 03:26:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:26:29,109 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2022-02-21 03:26:29,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2022-02-21 03:26:29,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:26:29,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:26:29,110 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:26:29,110 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:26:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2022-02-21 03:26:29,112 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-02-21 03:26:29,112 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-02-21 03:26:29,112 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:26:29,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2022-02-21 03:26:29,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:26:29,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:26:29,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:26:29,113 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:26:29,113 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:26:29,114 INFO L791 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 36#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~x~0#1, main_~y~0#1;havoc main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := 0;main_~y~0#1 := 0; 37#L13 assume main_~i~0#1 > 10;main_~x~0#1 := 1; 38#L18-1 [2022-02-21 03:26:29,114 INFO L793 eck$LassoCheckResult]: Loop: 38#L18-1 assume !!(main_~x~0#1 == main_~y~0#1); 38#L18-1 [2022-02-21 03:26:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-02-21 03:26:29,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:29,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496358772] [2022-02-21 03:26:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:29,122 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:26:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:29,125 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:26:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:29,126 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 2 times [2022-02-21 03:26:29,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:29,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875266961] [2022-02-21 03:26:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:29,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:29,131 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:26:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:26:29,133 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:26:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:26:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 925614, now seen corresponding path program 1 times [2022-02-21 03:26:29,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:26:29,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308614223] [2022-02-21 03:26:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:26:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:26:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:26:29,165 INFO L290 TraceCheckUtils]: 0: Hoare triple {54#true} assume { :begin_inline_ULTIMATE.init } true; {54#true} is VALID [2022-02-21 03:26:29,166 INFO L290 TraceCheckUtils]: 1: Hoare triple {54#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~x~0#1, main_~y~0#1;havoc main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := 0;main_~y~0#1 := 0; {56#(<= |ULTIMATE.start_main_~y~0#1| 0)} is VALID [2022-02-21 03:26:29,167 INFO L290 TraceCheckUtils]: 2: Hoare triple {56#(<= |ULTIMATE.start_main_~y~0#1| 0)} assume main_~i~0#1 > 10;main_~x~0#1 := 1; {57#(<= (+ |ULTIMATE.start_main_~y~0#1| 1) |ULTIMATE.start_main_~x~0#1|)} is VALID [2022-02-21 03:26:29,168 INFO L290 TraceCheckUtils]: 3: Hoare triple {57#(<= (+ |ULTIMATE.start_main_~y~0#1| 1) |ULTIMATE.start_main_~x~0#1|)} assume !!(main_~x~0#1 == main_~y~0#1); {55#false} is VALID [2022-02-21 03:26:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:26:29,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:26:29,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308614223] [2022-02-21 03:26:29,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308614223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:26:29,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:26:29,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:26:29,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984509341] [2022-02-21 03:26:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:26:29,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:26:29,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 03:26:29,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 03:26:29,179 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. cyclomatic complexity: 1 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:26:29,194 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2022-02-21 03:26:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 03:26:29,195 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-02-21 03:26:29,199 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:26:29,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 3 transitions. [2022-02-21 03:26:29,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:26:29,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 0 states and 0 transitions. [2022-02-21 03:26:29,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:26:29,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:26:29,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:26:29,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:26:29,202 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:26:29,202 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:26:29,202 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:26:29,203 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 03:26:29,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:26:29,203 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:26:29,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:26:29,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:26:29 BoogieIcfgContainer [2022-02-21 03:26:29,209 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:26:29,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:26:29,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:26:29,210 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:26:29,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:26:28" (3/4) ... [2022-02-21 03:26:29,213 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:26:29,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:26:29,214 INFO L158 Benchmark]: Toolchain (without parser) took 1040.67ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.3MB in the beginning and 77.8MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:26:29,215 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 62.7MB in the beginning and 62.6MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:26:29,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.95ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 68.9MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:26:29,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.04ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 67.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:26:29,216 INFO L158 Benchmark]: Boogie Preprocessor took 14.16ms. Allocated memory is still 90.2MB. Free memory was 67.6MB in the beginning and 66.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:26:29,217 INFO L158 Benchmark]: RCFGBuilder took 158.01ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 58.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 03:26:29,218 INFO L158 Benchmark]: BuchiAutomizer took 633.45ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.5MB in the beginning and 78.3MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:26:29,218 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 77.8MB in the end (delta: 489.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:26:29,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 62.7MB in the beginning and 62.6MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.95ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 68.9MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.04ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 67.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.16ms. Allocated memory is still 90.2MB. Free memory was 67.6MB in the beginning and 66.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 158.01ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 58.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 633.45ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.5MB in the beginning and 78.3MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 77.8MB in the end (delta: 489.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:26:29,252 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 Result: TRUE