./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/MinusBuiltIn.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 54fc8e0ddad462738a10cc2cd037df8c886fc836 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:10:50,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:10:50,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:10:50,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:10:50,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:10:50,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:10:50,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:10:50,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:10:50,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:10:50,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:10:50,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:10:50,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:10:50,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:10:50,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:10:50,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:10:50,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:10:50,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:10:50,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:10:50,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:10:50,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:10:50,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:10:50,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:10:50,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:10:50,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:10:50,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:10:50,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:10:50,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:10:50,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:10:50,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:10:50,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:10:50,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:10:50,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:10:50,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:10:50,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:10:50,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:10:50,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:10:50,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:10:50,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:10:50,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:10:50,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:10:50,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:10:50,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:10:50,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:10:50,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:10:50,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:10:50,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:10:50,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:10:50,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:10:50,543 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:10:50,544 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:10:50,544 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:10:50,544 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:10:50,544 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:10:50,544 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:10:50,544 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:10:50,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:10:50,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:10:50,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:10:50,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:10:50,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:10:50,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:10:50,547 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54fc8e0ddad462738a10cc2cd037df8c886fc836 [2021-08-27 14:10:50,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:10:50,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:10:50,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:10:50,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:10:50,800 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:10:50,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c [2021-08-27 14:10:50,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a44f1d13/ee6030bd470d4146b61566a47b168a57/FLAGd1b013f66 [2021-08-27 14:10:51,222 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:10:51,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c [2021-08-27 14:10:51,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a44f1d13/ee6030bd470d4146b61566a47b168a57/FLAGd1b013f66 [2021-08-27 14:10:51,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a44f1d13/ee6030bd470d4146b61566a47b168a57 [2021-08-27 14:10:51,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:10:51,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:10:51,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:10:51,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:10:51,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:10:51,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b8ee2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51, skipping insertion in model container [2021-08-27 14:10:51,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:10:51,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:10:51,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:10:51,374 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:10:51,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:10:51,391 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:10:51,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51 WrapperNode [2021-08-27 14:10:51,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:10:51,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:10:51,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:10:51,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:10:51,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:10:51,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:10:51,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:10:51,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:10:51,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:10:51,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:10:51,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:10:51,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:10:51,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (1/1) ... [2021-08-27 14:10:51,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:51,459 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) [2021-08-27 14:10:51,460 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 [2021-08-27 14:10:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:10:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:10:51,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:10:51,601 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 14:10:51,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:10:51 BoogieIcfgContainer [2021-08-27 14:10:51,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:10:51,603 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:10:51,603 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:10:51,605 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:10:51,605 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:10:51,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:10:51" (1/3) ... [2021-08-27 14:10:51,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@237289c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:10:51, skipping insertion in model container [2021-08-27 14:10:51,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:10:51,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:10:51" (2/3) ... [2021-08-27 14:10:51,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@237289c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:10:51, skipping insertion in model container [2021-08-27 14:10:51,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:10:51,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:10:51" (3/3) ... [2021-08-27 14:10:51,607 INFO L389 chiAutomizerObserver]: Analyzing ICFG MinusBuiltIn.c [2021-08-27 14:10:51,633 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:10:51,633 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:10:51,634 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:10:51,634 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:10:51,634 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:10:51,634 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:10:51,634 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:10:51,634 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:10:51,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 14:10:51,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:10:51,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:10:51,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:10:51,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:10:51,670 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:10:51,670 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:10:51,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 14:10:51,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:10:51,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:10:51,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:10:51,671 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:10:51,671 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:10:51,675 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 6#L13true assume !!(main_~x~0 < 2147483647); 7#L14-2true [2021-08-27 14:10:51,675 INFO L793 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(main_~x~0 > main_~y~0);main_~y~0 := 1 + main_~x~0; 7#L14-2true [2021-08-27 14:10:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:10:51,682 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2021-08-27 14:10:51,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:10:51,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46780384] [2021-08-27 14:10:51,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:10:51,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:10:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:10:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,759 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:10:51,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:10:51,762 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2021-08-27 14:10:51,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:10:51,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256601629] [2021-08-27 14:10:51,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:10:51,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:10:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,779 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:10:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:10:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:10:51,789 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2021-08-27 14:10:51,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:10:51,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896432249] [2021-08-27 14:10:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:10:51,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:10:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:10:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:10:51,813 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:10:51,887 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:10:51,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:10:51,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:10:51,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:10:51,887 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 14:10:51,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:51,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:10:51,888 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:10:51,888 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusBuiltIn.c_Iteration1_Loop [2021-08-27 14:10:51,888 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:10:51,888 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:10:51,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:51,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:51,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:51,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:10:51,980 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 14:10:51,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:51,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:51,982 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-08-27 14:10:51,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 14:10:51,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:10:51,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:10:52,000 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:10:52,000 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:10:52,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:52,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:52,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:52,020 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2021-08-27 14:10:52,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 14:10:52,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:10:52,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:10:52,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:10:52,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 14:10:52,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:52,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:52,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:52,051 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2021-08-27 14:10:52,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 14:10:52,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:10:52,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:10:52,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:52,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:52,087 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2021-08-27 14:10:52,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 14:10:52,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:10:52,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:10:52,865 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 14:10:52,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-08-27 14:10:52,872 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:10:52,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:10:52,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:10:52,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:10:52,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:10:52,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:52,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:10:52,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:10:52,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusBuiltIn.c_Iteration1_Loop [2021-08-27 14:10:52,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:10:52,873 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:10:52,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:52,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:52,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:10:52,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:10:52,958 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:10:52,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:52,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:52,963 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2021-08-27 14:10:52,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 14:10:52,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:10:52,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:10:52,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:10:52,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:10:52,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:10:52,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:10:52,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:10:52,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:10:53,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:53,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:53,009 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-08-27 14:10:53,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 14:10:53,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:10:53,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:10:53,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:10:53,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:10:53,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:10:53,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:10:53,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:10:53,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:10:53,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:53,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:53,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:53,070 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2021-08-27 14:10:53,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 14:10:53,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:10:53,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:10:53,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:10:53,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:10:53,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:10:53,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:10:53,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:10:53,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:10:53,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:10:53,096 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:10:53,096 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 14:10:53,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:10:53,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:10:53,108 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2021-08-27 14:10:53,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:10:53,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:10:53,111 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:10:53,111 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-08-27 14:10:53,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:10:53,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:53,128 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 14:10:53,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:10:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:10:53,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:10:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:10:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:10:53,213 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:10:53,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:10:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:10:53,222 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 14:10:53,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 14:10:53,242 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Result 19 states and 22 transitions. Complement of second has 5 states. [2021-08-27 14:10:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:10:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 14:10:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-08-27 14:10:53,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-27 14:10:53,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:10:53,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-27 14:10:53,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:10:53,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-27 14:10:53,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:10:53,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2021-08-27 14:10:53,247 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:10:53,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-08-27 14:10:53,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:10:53,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:10:53,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:10:53,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:10:53,249 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:10:53,249 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:10:53,249 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:10:53,249 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:10:53,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:10:53,250 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:10:53,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:10:53,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:10:53 BoogieIcfgContainer [2021-08-27 14:10:53,253 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:10:53,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:10:53,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:10:53,253 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:10:53,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:10:51" (3/4) ... [2021-08-27 14:10:53,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:10:53,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:10:53,256 INFO L168 Benchmark]: Toolchain (without parser) took 2011.43 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.7 MB in the beginning and 39.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-27 14:10:53,257 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:10:53,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.82 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 27.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:10:53,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.35 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 25.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:10:53,258 INFO L168 Benchmark]: Boogie Preprocessor took 14.86 ms. Allocated memory is still 56.6 MB. Free memory was 25.7 MB in the beginning and 40.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:10:53,258 INFO L168 Benchmark]: RCFGBuilder took 176.38 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 32.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:10:53,258 INFO L168 Benchmark]: BuchiAutomizer took 1649.92 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 39.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-08-27 14:10:53,259 INFO L168 Benchmark]: Witness Printer took 1.94 ms. Allocated memory is still 69.2 MB. Free memory was 39.5 MB in the beginning and 39.2 MB in the end (delta: 250.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:10:53,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.82 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 27.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 17.35 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 25.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.86 ms. Allocated memory is still 56.6 MB. Free memory was 25.7 MB in the beginning and 40.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 176.38 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 32.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1649.92 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 39.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Witness Printer took 1.94 ms. Allocated memory is still 69.2 MB. Free memory was 39.5 MB in the beginning and 39.2 MB in the end (delta: 250.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 14:10:53,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 14:10:53,499 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...