./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-numeric/Binomial.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 c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:58:35,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:58:35,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:58:35,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:58:35,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:58:35,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:58:35,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:58:35,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:58:35,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:58:35,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:58:35,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:58:35,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:58:35,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:58:35,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:58:35,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:58:35,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:58:35,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:58:35,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:58:35,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:58:35,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:58:35,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:58:35,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:58:35,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:58:35,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:58:35,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:58:35,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:58:35,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:58:35,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:58:35,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:58:35,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:58:35,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:58:35,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:58:35,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:58:35,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:58:35,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:58:35,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:58:35,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:58:35,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:58:35,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:58:35,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:58:35,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:58:35,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-15 16:58:35,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:58:35,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:58:35,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:58:35,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:58:35,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:58:35,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:58:35,467 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:58:35,467 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 16:58:35,467 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 16:58:35,467 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 16:58:35,468 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 16:58:35,468 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 16:58:35,468 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 16:58:35,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 16:58:35,469 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 16:58:35,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:58:35,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 16:58:35,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:58:35,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:58:35,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:58:35,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:58:35,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:58:35,471 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 16:58:35,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2021-12-15 16:58:35,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:58:35,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:58:35,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:58:35,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:58:35,712 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:58:35,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2021-12-15 16:58:35,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af06d63f3/a2a25a42573b43f0a3add8de7f9e4fd3/FLAG46c10bbde [2021-12-15 16:58:36,153 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:58:36,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2021-12-15 16:58:36,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af06d63f3/a2a25a42573b43f0a3add8de7f9e4fd3/FLAG46c10bbde [2021-12-15 16:58:36,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af06d63f3/a2a25a42573b43f0a3add8de7f9e4fd3 [2021-12-15 16:58:36,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:58:36,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:58:36,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:58:36,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:58:36,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:58:36,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e0d980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36, skipping insertion in model container [2021-12-15 16:58:36,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:58:36,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:58:36,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:58:36,362 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:58:36,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:58:36,382 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:58:36,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36 WrapperNode [2021-12-15 16:58:36,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:58:36,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:58:36,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:58:36,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:58:36,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,412 INFO L137 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2021-12-15 16:58:36,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:58:36,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:58:36,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:58:36,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:58:36,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:58:36,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:58:36,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:58:36,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:58:36,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (1/1) ... [2021-12-15 16:58:36,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 16:58:36,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:58:36,460 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 16:58:36,469 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 16:58:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2021-12-15 16:58:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2021-12-15 16:58:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:58:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:58:36,541 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:58:36,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:58:36,618 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:58:36,623 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:58:36,623 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 16:58:36,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:58:36 BoogieIcfgContainer [2021-12-15 16:58:36,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:58:36,625 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 16:58:36,625 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 16:58:36,628 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 16:58:36,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:36,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 04:58:36" (1/3) ... [2021-12-15 16:58:36,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca840c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:58:36, skipping insertion in model container [2021-12-15 16:58:36,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:36,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:36" (2/3) ... [2021-12-15 16:58:36,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca840c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:58:36, skipping insertion in model container [2021-12-15 16:58:36,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:36,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:58:36" (3/3) ... [2021-12-15 16:58:36,638 INFO L388 chiAutomizerObserver]: Analyzing ICFG Binomial.c [2021-12-15 16:58:36,665 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 16:58:36,666 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 16:58:36,666 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 16:58:36,666 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 16:58:36,666 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 16:58:36,666 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 16:58:36,666 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 16:58:36,666 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 16:58:36,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-15 16:58:36,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-12-15 16:58:36,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:58:36,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:58:36,726 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 16:58:36,727 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 16:58:36,727 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 16:58:36,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-15 16:58:36,730 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-12-15 16:58:36,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:58:36,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:58:36,731 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 16:58:36,731 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 16:58:36,737 INFO L791 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 18#L35true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 28#L38true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 14#L41-3true [2021-12-15 16:58:36,737 INFO L793 eck$LassoCheckResult]: Loop: 14#L41-3true assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 23#L42-3true assume !(main_~k~0#1 <= main_~x~0#1); 15#L41-2true main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 14#L41-3true [2021-12-15 16:58:36,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:36,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1171944, now seen corresponding path program 1 times [2021-12-15 16:58:36,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:36,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176971723] [2021-12-15 16:58:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:36,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:36,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:58:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:36,836 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:58:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:36,838 INFO L85 PathProgramCache]: Analyzing trace with hash 57812, now seen corresponding path program 1 times [2021-12-15 16:58:36,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:36,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176098732] [2021-12-15 16:58:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:36,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:36,862 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:58:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:36,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:58:36,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:36,875 INFO L85 PathProgramCache]: Analyzing trace with hash 553673357, now seen corresponding path program 1 times [2021-12-15 16:58:36,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:36,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347556995] [2021-12-15 16:58:36,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:36,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:58:36,957 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 16:58:36,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:58:36,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347556995] [2021-12-15 16:58:36,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347556995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:58:36,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:58:36,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 16:58:36,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474457180] [2021-12-15 16:58:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:58:37,011 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 16:58:37,017 INFO L158 Benchmark]: Toolchain (without parser) took 834.86ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 51.6MB in the end (delta: 16.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-15 16:58:37,017 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:58:37,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.61ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 81.6MB in the end (delta: -13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:58:37,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.64ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:58:37,019 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:58:37,019 INFO L158 Benchmark]: RCFGBuilder took 187.84ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 69.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 16:58:37,020 INFO L158 Benchmark]: BuchiAutomizer took 390.32ms. Allocated memory is still 104.9MB. Free memory was 69.5MB in the beginning and 51.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 16:58:37,029 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 104.9MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.61ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 81.6MB in the end (delta: -13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.64ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.84ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 69.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 390.32ms. Allocated memory is still 104.9MB. Free memory was 69.5MB in the beginning and 51.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. 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 16:58:37,063 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable