./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:55:58,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:55:58,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:55:58,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:55:58,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:55:58,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:55:58,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:55:58,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:55:58,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:55:58,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:55:58,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:55:58,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:55:58,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:55:58,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:55:58,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:55:58,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:55:58,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:55:58,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:55:58,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:55:58,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:55:58,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:55:58,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:55:58,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:55:58,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:55:58,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:55:58,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:55:58,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:55:58,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:55:58,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:55:58,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:55:58,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:55:58,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:55:58,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:55:58,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:55:58,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:55:58,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:55:58,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:55:58,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:55:58,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:55:58,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:55:58,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:55:58,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:55:58,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:55:58,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:55:58,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:55:58,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:55:58,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:55:58,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:55:58,436 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:55:58,436 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:55:58,436 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:55:58,436 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:55:58,437 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:55:58,437 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:55:58,437 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:55:58,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:55:58,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:55:58,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:55:58,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:55:58,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:55:58,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:55:58,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:55:58,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:55:58,439 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:55:58,439 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:55:58,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:55:58,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:55:58,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:55:58,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:55:58,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:55:58,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:55:58,441 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:55:58,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2021-12-21 21:55:58,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:55:58,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:55:58,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:55:58,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:55:58,680 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:55:58,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-21 21:55:58,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bedd57414/e0aa5eab829e44ce8e46ea7d8c8490a6/FLAG86076111b [2021-12-21 21:55:59,144 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:55:59,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-21 21:55:59,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bedd57414/e0aa5eab829e44ce8e46ea7d8c8490a6/FLAG86076111b [2021-12-21 21:55:59,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bedd57414/e0aa5eab829e44ce8e46ea7d8c8490a6 [2021-12-21 21:55:59,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:55:59,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:55:59,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:55:59,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:55:59,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:55:59,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2264c303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:55:59,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:55:59,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:55:59,340 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:55:59,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:55:59,363 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:55:59,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59 WrapperNode [2021-12-21 21:55:59,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:55:59,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:55:59,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:55:59,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:55:59,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,390 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-21 21:55:59,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:55:59,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:55:59,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:55:59,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:55:59,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:55:59,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:55:59,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:55:59,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:55:59,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:55:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:55:59,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:55:59,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 21:55:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:55:59,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:55:59,528 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:55:59,530 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:55:59,622 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:55:59,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:55:59,628 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 21:55:59,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59 BoogieIcfgContainer [2021-12-21 21:55:59,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:55:59,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:55:59,631 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:55:59,634 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:55:59,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:55:59" (1/3) ... [2021-12-21 21:55:59,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1140b337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (2/3) ... [2021-12-21 21:55:59,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1140b337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59" (3/3) ... [2021-12-21 21:55:59,638 INFO L388 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-21 21:55:59,691 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:55:59,691 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:55:59,691 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:55:59,692 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:55:59,692 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:55:59,692 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:55:59,692 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:55:59,692 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:55:59,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:55:59,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:55:59,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:55:59,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:55:59,731 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 21:55:59,731 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:55:59,731 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:55:59,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:55:59,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:55:59,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:55:59,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:55:59,734 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 21:55:59,734 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:55:59,739 INFO L791 eck$LassoCheckResult]: Stem: 6#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_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L17true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 3#L19-2true [2021-12-21 21:55:59,740 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 10#L19true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 3#L19-2true [2021-12-21 21:55:59,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:55:59,751 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-21 21:55:59,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:55:59,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850239601] [2021-12-21 21:55:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:55:59,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:55:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,826 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:55:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:55:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:55:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-12-21 21:55:59,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:55:59,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345256769] [2021-12-21 21:55:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:55:59,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:55:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:55:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:55:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:55:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-12-21 21:55:59,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:55:59,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092708130] [2021-12-21 21:55:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:55:59,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:55:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:55:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:55:59,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:00,037 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:00,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:00,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:00,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:00,038 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:00,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:00,039 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:00,039 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-12-21 21:56:00,039 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:00,039 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:00,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:00,136 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:00,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,139 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) [2021-12-21 21:56:00,140 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 [2021-12-21 21:56:00,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:00,160 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: [] [2021-12-21 21:56:00,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-21 21:56:00,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,178 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) [2021-12-21 21:56:00,183 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 [2021-12-21 21:56:00,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,212 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:00,212 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: [] [2021-12-21 21:56:00,238 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 [2021-12-21 21:56:00,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,239 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) [2021-12-21 21:56:00,243 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 [2021-12-21 21:56:00,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,278 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 [2021-12-21 21:56:00,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,280 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) [2021-12-21 21:56:00,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:00,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,311 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 [2021-12-21 21:56:00,415 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:00,418 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 [2021-12-21 21:56:00,419 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:00,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:00,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:00,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:00,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:00,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:00,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:00,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-12-21 21:56:00,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:00,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:00,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:00,464 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:00,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,467 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) [2021-12-21 21:56:00,481 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 [2021-12-21 21:56:00,482 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 [2021-12-21 21:56:00,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:00,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:00,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:00,531 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 [2021-12-21 21:56:00,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,533 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) [2021-12-21 21:56:00,534 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 [2021-12-21 21:56:00,535 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 [2021-12-21 21:56:00,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:00,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:00,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:00,581 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 [2021-12-21 21:56:00,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,582 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) [2021-12-21 21:56:00,597 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 [2021-12-21 21:56:00,597 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 [2021-12-21 21:56:00,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:00,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:00,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:00,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:00,630 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 21:56:00,636 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:00,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,640 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) [2021-12-21 21:56:00,640 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 [2021-12-21 21:56:00,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:00,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:00,677 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:00,678 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-21 21:56:00,694 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 [2021-12-21 21:56:00,697 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:00,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:00,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,738 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 21:56:00,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:00,818 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:00,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:00,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 29 states and 36 transitions. Complement of second has 8 states. [2021-12-21 21:56:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:00,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:00,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-21 21:56:00,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-21 21:56:00,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-21 21:56:00,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-21 21:56:00,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-21 21:56:00,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:00,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-12-21 21:56:00,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-21 21:56:00,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-21 21:56:00,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-12-21 21:56:00,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:00,878 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-21 21:56:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-12-21 21:56:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-21 21:56:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:00,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-12-21 21:56:00,893 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-21 21:56:00,893 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-21 21:56:00,893 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 21:56:00,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-12-21 21:56:00,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:00,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:00,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:00,894 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 21:56:00,894 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:56:00,894 INFO L791 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 89#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 86#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 87#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 85#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 81#L19-2 [2021-12-21 21:56:00,894 INFO L793 eck$LassoCheckResult]: Loop: 81#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 82#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 81#L19-2 [2021-12-21 21:56:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2021-12-21 21:56:00,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:00,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290553380] [2021-12-21 21:56:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:00,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:00,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2021-12-21 21:56:00,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:00,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189329432] [2021-12-21 21:56:00,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:00,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,924 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,928 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2021-12-21 21:56:00,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:00,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100056165] [2021-12-21 21:56:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:00,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:00,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:56:00,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100056165] [2021-12-21 21:56:00,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100056165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:56:00,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:56:00,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:56:00,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410079771] [2021-12-21 21:56:00,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:56:00,997 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:00,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:00,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:00,998 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:00,998 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:00,998 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:00,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:00,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-12-21 21:56:00,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:00,998 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:00,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,032 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,032 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:01,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,034 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) [2021-12-21 21:56:01,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,085 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 [2021-12-21 21:56:01,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:01,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:01,114 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 [2021-12-21 21:56:01,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,115 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) [2021-12-21 21:56:01,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,128 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 [2021-12-21 21:56:01,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:01,144 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:01,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-21 21:56:01,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,163 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) [2021-12-21 21:56:01,164 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 [2021-12-21 21:56:01,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-21 21:56:01,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,193 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) [2021-12-21 21:56:01,194 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 [2021-12-21 21:56:01,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:01,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,300 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:01,306 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 [2021-12-21 21:56:01,306 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:01,306 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:01,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:01,306 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:01,306 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:01,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:01,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:01,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-12-21 21:56:01,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:01,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:01,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,364 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,364 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:01,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,368 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) [2021-12-21 21:56:01,376 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 [2021-12-21 21:56:01,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:01,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:01,389 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 [2021-12-21 21:56:01,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:01,421 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 [2021-12-21 21:56:01,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,423 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) [2021-12-21 21:56:01,426 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 [2021-12-21 21:56:01,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:01,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:01,439 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 [2021-12-21 21:56:01,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:01,469 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 [2021-12-21 21:56:01,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,471 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) [2021-12-21 21:56:01,471 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 [2021-12-21 21:56:01,472 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 [2021-12-21 21:56:01,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:01,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:01,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:01,498 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:01,501 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 21:56:01,501 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:01,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,511 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) [2021-12-21 21:56:01,515 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:01,515 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:01,515 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:01,516 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-21 21:56:01,536 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 [2021-12-21 21:56:01,540 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 [2021-12-21 21:56:01,541 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:01,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,569 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 21:56:01,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:01,591 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:01,591 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:01,602 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 5 states. [2021-12-21 21:56:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:01,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-12-21 21:56:01,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-21 21:56:01,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 21:56:01,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-21 21:56:01,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-12-21 21:56:01,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:01,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2021-12-21 21:56:01,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-21 21:56:01,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-21 21:56:01,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-12-21 21:56:01,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:01,606 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-21 21:56:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-12-21 21:56:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-21 21:56:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-12-21 21:56:01,608 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-21 21:56:01,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:56:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 21:56:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:56:01,615 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:56:01,632 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-12-21 21:56:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 21:56:01,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-12-21 21:56:01,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:01,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 13 transitions. [2021-12-21 21:56:01,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-21 21:56:01,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-21 21:56:01,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-21 21:56:01,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:01,634 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-21 21:56:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-21 21:56:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2021-12-21 21:56:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-12-21 21:56:01,635 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-21 21:56:01,635 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-21 21:56:01,635 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 21:56:01,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-12-21 21:56:01,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:01,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:01,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:01,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 21:56:01,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:56:01,637 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 180#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 177#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 178#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 174#L19 [2021-12-21 21:56:01,637 INFO L793 eck$LassoCheckResult]: Loop: 174#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 173#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 174#L19 [2021-12-21 21:56:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,637 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-21 21:56:01,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034528333] [2021-12-21 21:56:01,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,642 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2021-12-21 21:56:01,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125995685] [2021-12-21 21:56:01,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 2 times [2021-12-21 21:56:01,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649320269] [2021-12-21 21:56:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,684 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,710 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 [2021-12-21 21:56:01,737 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:01,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:01,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:01,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:01,738 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:01,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:01,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:01,738 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-12-21 21:56:01,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:01,738 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:01,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:01,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,774 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:01,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,776 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:01,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-21 21:56:01,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:01,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,835 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:01,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-21 21:56:01,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:01,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,040 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:02,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,044 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:02,044 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:02,044 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:02,044 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:02,044 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:02,044 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,044 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:02,045 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:02,045 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-12-21 21:56:02,045 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:02,045 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:02,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:02,091 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:02,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,092 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-21 21:56:02,096 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 [2021-12-21 21:56:02,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:02,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:02,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:02,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:02,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:02,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:02,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:02,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:02,117 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 21:56:02,117 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:02,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,118 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-21 21:56:02,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:02,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:02,120 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:02,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-21 21:56:02,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,136 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,195 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:02,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,203 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 states and 15 transitions. Complement of second has 5 states. [2021-12-21 21:56:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-12-21 21:56:02,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-21 21:56:02,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-21 21:56:02,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-21 21:56:02,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-21 21:56:02,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:02,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2021-12-21 21:56:02,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-21 21:56:02,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-21 21:56:02,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-21 21:56:02,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:02,207 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-21 21:56:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-21 21:56:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-12-21 21:56:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2021-12-21 21:56:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-12-21 21:56:02,209 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-21 21:56:02,209 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-21 21:56:02,209 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 21:56:02,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2021-12-21 21:56:02,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 21:56:02,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:02,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:02,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-12-21 21:56:02,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:56:02,210 INFO L791 eck$LassoCheckResult]: Stem: 238#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 239#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 237#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 233#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 234#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 235#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 236#L19 [2021-12-21 21:56:02,210 INFO L793 eck$LassoCheckResult]: Loop: 236#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 240#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 236#L19 [2021-12-21 21:56:02,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-12-21 21:56:02,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:02,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427171300] [2021-12-21 21:56:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:02,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:02,216 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:02,220 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-12-21 21:56:02,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:02,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577688905] [2021-12-21 21:56:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:02,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:02,224 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:02,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:02,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 2 times [2021-12-21 21:56:02,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:02,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603556275] [2021-12-21 21:56:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:02,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:56:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603556275] [2021-12-21 21:56:02,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603556275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:56:02,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:56:02,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 21:56:02,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983510837] [2021-12-21 21:56:02,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:56:02,277 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:02,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:02,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:02,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:02,277 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:02,278 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,278 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:02,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:02,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-12-21 21:56:02,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:02,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:02,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,310 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:02,310 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:02,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,312 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-21 21:56:02,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:02,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:02,336 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:02,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-21 21:56:02,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,355 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-21 21:56:02,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:02,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,369 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:02,369 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:02,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-21 21:56:02,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,387 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-21 21:56:02,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:02,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,421 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-21 21:56:02,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:02,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,652 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:02,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-21 21:56:02,656 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:02,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:02,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:02,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:02,656 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:02,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:02,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:02,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-12-21 21:56:02,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:02,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:02,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:02,695 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:02,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,696 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-21 21:56:02,698 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 [2021-12-21 21:56:02,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:02,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:02,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:02,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:02,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:02,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:02,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:02,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,748 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,751 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 [2021-12-21 21:56:02,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-21 21:56:02,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:02,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:02,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:02,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:02,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:02,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:02,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:02,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-21 21:56:02,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,788 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-21 21:56:02,790 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 [2021-12-21 21:56:02,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:02,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:02,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:02,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:02,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:02,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:02,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:02,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:02,829 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 21:56:02,829 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:02,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,832 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:02,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-21 21:56:02,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:02,839 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:02,839 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:02,839 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-21 21:56:02,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,856 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:02,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 states and 10 transitions. Complement of second has 3 states. [2021-12-21 21:56:02,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-21 21:56:02,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-21 21:56:02,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,929 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 21:56:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,963 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,985 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:02,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,990 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 states and 10 transitions. Complement of second has 3 states. [2021-12-21 21:56:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:02,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-21 21:56:02,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-21 21:56:02,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,992 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 21:56:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:03,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:03,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:03,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 21:56:03,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:03,039 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 21:56:03,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:03,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 states and 11 transitions. Complement of second has 4 states. [2021-12-21 21:56:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 21:56:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:03,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-21 21:56:03,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-21 21:56:03,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:03,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-21 21:56:03,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:03,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-21 21:56:03,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:03,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-21 21:56:03,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:03,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-12-21 21:56:03,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 21:56:03,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 21:56:03,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 21:56:03,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 21:56:03,050 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:03,050 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:03,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:56:03,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 21:56:03,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 21:56:03,051 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:56:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:56:03,051 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-21 21:56:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 21:56:03,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-21 21:56:03,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:03,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 21:56:03,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 21:56:03,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 21:56:03,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 21:56:03,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 21:56:03,053 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:03,053 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:03,053 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:03,053 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 21:56:03,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 21:56:03,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:03,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 21:56:03,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:56:03 BoogieIcfgContainer [2021-12-21 21:56:03,073 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:56:03,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:56:03,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:56:03,074 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:56:03,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59" (3/4) ... [2021-12-21 21:56:03,076 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 21:56:03,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:56:03,086 INFO L158 Benchmark]: Toolchain (without parser) took 3915.79ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 71.5MB in the beginning and 104.4MB in the end (delta: -32.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:03,086 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:03,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.76ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 84.3MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:56:03,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.76ms. Allocated memory is still 107.0MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:03,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:03,091 INFO L158 Benchmark]: Boogie Preprocessor took 14.83ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 863.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:56:03,092 INFO L158 Benchmark]: RCFGBuilder took 222.75ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 74.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 21:56:03,092 INFO L158 Benchmark]: BuchiAutomizer took 3442.19ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.2MB in the beginning and 104.4MB in the end (delta: -30.2MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2021-12-21 21:56:03,092 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 130.0MB. Free memory was 104.4MB in the beginning and 104.4MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:03,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.76ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 84.3MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.76ms. Allocated memory is still 107.0MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.83ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 863.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 222.75ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 74.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3442.19ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.2MB in the beginning and 104.4MB in the end (delta: -30.2MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 130.0MB. Free memory was 104.4MB in the beginning and 104.4MB in the end (delta: 51.5kB). 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 38 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 21:56:03,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:03,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE