./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.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 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:23:15,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:23:15,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:23:15,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:23:15,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:23:15,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:23:15,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:23:15,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:23:15,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:23:15,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:23:15,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:23:15,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:23:15,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:23:15,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:23:15,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:23:15,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:23:15,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:23:15,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:23:15,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:23:15,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:23:15,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:23:15,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:23:15,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:23:15,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:23:15,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:23:15,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:23:15,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:23:15,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:23:15,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:23:15,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:23:15,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:23:15,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:23:15,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:23:15,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:23:15,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:23:15,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:23:15,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:23:15,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:23:15,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:23:15,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:23:15,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:23:15,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:23:15,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:23:15,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:23:15,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:23:15,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:23:15,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:23:15,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:23:15,410 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:23:15,410 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:23:15,410 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:23:15,410 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:23:15,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:23:15,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:23:15,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:23:15,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:23:15,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:23:15,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:23:15,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:23:15,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:23:15,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2022-02-21 03:23:15,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:23:15,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:23:15,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:23:15,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:23:15,657 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:23:15,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2022-02-21 03:23:15,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b799397/3743fcaa13044dba8d6d21ce044ebd64/FLAG32c9f032d [2022-02-21 03:23:16,059 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:23:16,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2022-02-21 03:23:16,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b799397/3743fcaa13044dba8d6d21ce044ebd64/FLAG32c9f032d [2022-02-21 03:23:16,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b799397/3743fcaa13044dba8d6d21ce044ebd64 [2022-02-21 03:23:16,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:23:16,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:23:16,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:23:16,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:23:16,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:23:16,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a919bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16, skipping insertion in model container [2022-02-21 03:23:16,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:23:16,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:23:16,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:23:16,236 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:23:16,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:23:16,257 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:23:16,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16 WrapperNode [2022-02-21 03:23:16,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:23:16,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:23:16,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:23:16,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:23:16,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,284 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-02-21 03:23:16,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:23:16,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:23:16,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:23:16,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:23:16,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:23:16,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:23:16,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:23:16,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:23:16,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (1/1) ... [2022-02-21 03:23:16,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:16,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:16,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 03:23:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:23:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:23:16,430 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:23:16,431 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:23:16,514 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:23:16,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:23:16,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:23:16,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:16 BoogieIcfgContainer [2022-02-21 03:23:16,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:23:16,523 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:23:16,523 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:23:16,525 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:23:16,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:16,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:23:16" (1/3) ... [2022-02-21 03:23:16,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778686ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:23:16, skipping insertion in model container [2022-02-21 03:23:16,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:16,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:16" (2/3) ... [2022-02-21 03:23:16,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778686ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:23:16, skipping insertion in model container [2022-02-21 03:23:16,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:16,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:16" (3/3) ... [2022-02-21 03:23:16,528 INFO L388 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2022-02-21 03:23:16,559 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:23:16,559 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:23:16,559 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:23:16,559 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:23:16,559 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:23:16,560 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:23:16,560 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:23:16,560 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:23:16,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:16,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:23:16,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:16,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:16,585 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:23:16,585 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:23:16,585 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:23:16,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:16,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:23:16,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:16,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:16,588 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:23:16,588 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:23:16,592 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L15true assume main_~x~0#1 > 0; 6#L16-2true [2022-02-21 03:23:16,592 INFO L793 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(0 != main_~x~0#1 && -1 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 2; 6#L16-2true [2022-02-21 03:23:16,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-02-21 03:23:16,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:16,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433297571] [2022-02-21 03:23:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,653 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,667 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:16,671 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2022-02-21 03:23:16,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:16,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512116942] [2022-02-21 03:23:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:16,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,692 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:16,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-02-21 03:23:16,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:16,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351712229] [2022-02-21 03:23:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,707 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:16,713 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:16,777 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:23:16,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:23:16,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:23:16,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:23:16,792 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:23:16,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:16,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:23:16,792 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:23:16,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2022-02-21 03:23:16,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:23:16,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:23:16,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:16,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:16,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:16,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:23:16,993 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:23:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:16,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,000 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) [2022-02-21 03:23:17,001 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 [2022-02-21 03:23:17,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,020 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: [] [2022-02-21 03:23:17,037 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 [2022-02-21 03:23:17,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,039 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) [2022-02-21 03:23:17,040 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 [2022-02-21 03:23:17,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,054 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: [] [2022-02-21 03:23:17,069 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 [2022-02-21 03:23:17,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,073 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) [2022-02-21 03:23:17,074 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 [2022-02-21 03:23:17,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,110 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 [2022-02-21 03:23:17,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,111 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) [2022-02-21 03:23:17,112 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 [2022-02-21 03:23:17,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:23:17,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,143 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [0, 1, 14] Nus: [1, 0] [2022-02-21 03:23:17,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,174 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:23:17,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:23:17,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:23:17,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:23:17,174 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:23:17,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:23:17,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:23:17,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2022-02-21 03:23:17,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:23:17,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:23:17,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:23:17,336 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:23:17,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,338 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) [2022-02-21 03:23:17,339 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 [2022-02-21 03:23:17,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,352 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,352 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:23:17,370 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 [2022-02-21 03:23:17,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,372 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) [2022-02-21 03:23:17,373 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 [2022-02-21 03:23:17,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:23:17,444 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 [2022-02-21 03:23:17,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,445 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) [2022-02-21 03:23:17,446 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 [2022-02-21 03:23:17,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:23:17,475 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 [2022-02-21 03:23:17,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,476 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) [2022-02-21 03:23:17,477 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 [2022-02-21 03:23:17,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:23:17,495 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:23:17,510 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 [2022-02-21 03:23:17,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-02-21 03:23:17,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:23:17,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,544 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-02-21 03:23:17,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:23:17,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:23:17,588 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:23:17,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,591 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:23:17,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:23:17,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:23:17,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:23:17,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:23:17,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:23:17,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:23:17,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2022-02-21 03:23:17,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:23:17,592 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:23:17,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:23:17,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:23:17,721 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:23:17,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-02-21 03:23:17,726 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 [2022-02-21 03:23:17,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:23:17,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:23:17,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:23:17,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:23:17,736 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:23:17,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:23:17,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:23:17,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,769 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-02-21 03:23:17,772 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 [2022-02-21 03:23:17,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:23:17,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:23:17,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:23:17,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:23:17,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:23:17,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:23:17,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:23:17,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,813 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-02-21 03:23:17,818 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 [2022-02-21 03:23:17,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:23:17,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:23:17,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:23:17,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:23:17,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:23:17,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:23:17,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:23:17,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:23:17,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,866 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-02-21 03:23:17,869 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 [2022-02-21 03:23:17,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:23:17,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:23:17,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:23:17,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:23:17,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:23:17,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:23:17,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:23:17,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:23:17,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:17,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,897 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:17,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-02-21 03:23:17,899 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 [2022-02-21 03:23:17,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:23:17,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:23:17,906 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-02-21 03:23:17,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:23:17,912 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-02-21 03:23:17,912 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-02-21 03:23:17,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:23:17,953 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-02-21 03:23:17,954 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-02-21 03:23:17,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:17,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:17,972 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:23:18,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-02-21 03:23:18,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:23:18,047 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-02-21 03:23:18,047 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:23:18,048 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 + 1 >= 0] [2022-02-21 03:23:18,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-02-21 03:23:18,079 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-02-21 03:23:18,086 INFO L390 LassoCheck]: Loop: "assume !!(0 != main_~x~0#1 && -1 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 2;" [2022-02-21 03:23:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:23:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:23:18,121 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-21 03:23:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:23:18,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:23:18,135 INFO L290 TraceCheckUtils]: 0: Hoare triple {18#unseeded} assume { :begin_inline_ULTIMATE.init } true; {18#unseeded} is VALID [2022-02-21 03:23:18,135 INFO L290 TraceCheckUtils]: 1: Hoare triple {18#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; {18#unseeded} is VALID [2022-02-21 03:23:18,136 INFO L290 TraceCheckUtils]: 2: Hoare triple {18#unseeded} assume main_~x~0#1 > 0; {37#(and unseeded (>= (+ |ULTIMATE.start_main_~x~0#1| 1) 0))} is VALID [2022-02-21 03:23:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:23:18,140 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-21 03:23:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:23:18,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:23:18,143 INFO L290 TraceCheckUtils]: 0: Hoare triple {38#(and (>= (+ |ULTIMATE.start_main_~x~0#1| 1) 0) (>= oldRank0 |ULTIMATE.start_main_~x~0#1|))} assume !!(0 != main_~x~0#1 && -1 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 2; {40#(and (or unseeded (and (>= oldRank0 0) (> oldRank0 |ULTIMATE.start_main_~x~0#1|))) (>= (+ |ULTIMATE.start_main_~x~0#1| 1) 0))} is VALID [2022-02-21 03:23:18,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:23:18,157 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,162 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:23:18,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,167 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 [2022-02-21 03:23:18,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,215 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 5 states. [2022-02-21 03:23:18,215 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 [2022-02-21 03:23:18,216 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:23:18,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:23:18,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:18,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:18,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:23:18,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:18,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:18,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 24 transitions. [2022-02-21 03:23:18,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:23:18,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:23:18,221 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:23:18,222 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:23:18,222 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:23:18,223 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:23:18,223 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2022-02-21 03:23:18,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2022-02-21 03:23:18,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:23:18,224 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:23:18,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 21 letters. Loop has 21 letters. [2022-02-21 03:23:18,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 21 letters. Loop has 21 letters. [2022-02-21 03:23:18,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 21 letters. Loop has 21 letters. [2022-02-21 03:23:18,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 8 letters. Loop has 8 letters. [2022-02-21 03:23:18,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 8 letters. Loop has 8 letters. [2022-02-21 03:23:18,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 8 letters. Loop has 8 letters. [2022-02-21 03:23:18,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:23:18,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:23:18,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:23:18,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:23:18,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:23:18,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:23:18,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:23:18,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,231 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:23:18,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:23:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-02-21 03:23:18,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:23:18,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:23:18,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2022-02-21 03:23:18,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:23:18,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2022-02-21 03:23:18,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:23:18,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2022-02-21 03:23:18,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:23:18,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:23:18,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:23:18,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:23:18,241 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:23:18,241 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:23:18,241 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:23:18,241 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:23:18,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:23:18,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:23:18,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:23:18,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:23:18 BoogieIcfgContainer [2022-02-21 03:23:18,246 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:23:18,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:23:18,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:23:18,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:23:18,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:16" (3/4) ... [2022-02-21 03:23:18,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:23:18,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:23:18,250 INFO L158 Benchmark]: Toolchain (without parser) took 2167.85ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 38.0MB in the beginning and 43.2MB in the end (delta: -5.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,250 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:18,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.71ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 37.8MB in the beginning and 76.5MB in the end (delta: -38.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.35ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,251 INFO L158 Benchmark]: Boogie Preprocessor took 12.59ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,251 INFO L158 Benchmark]: RCFGBuilder took 223.40ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 78.0MB in the end (delta: -4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,252 INFO L158 Benchmark]: BuchiAutomizer took 1722.97ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 43.2MB in the end (delta: 34.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-02-21 03:23:18,252 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 102.8MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:18,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.71ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 37.8MB in the beginning and 76.5MB in the end (delta: -38.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.35ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.59ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.40ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 78.0MB in the end (delta: -4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1722.97ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 43.2MB in the end (delta: 34.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 102.8MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf96 smp100 dnf270 smp44 tf101 neg94 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 151ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:23:18,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-02-21 03:23:18,487 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 Writing output log to file Ultimate.log Result: TRUE