./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3dbbec33 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-wcet2.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 f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:41:36,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:41:36,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:41:36,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:41:36,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:41:36,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:41:36,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:41:36,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:41:36,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:41:36,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:41:36,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:41:36,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:41:36,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:41:36,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:41:36,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:41:36,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:41:36,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:41:36,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:41:36,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:41:36,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:41:36,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:41:36,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:41:36,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:41:36,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:41:36,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:41:36,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:41:36,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:41:36,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:41:36,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:41:36,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:41:36,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:41:36,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:41:36,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:41:36,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:41:36,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:41:36,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:41:36,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:41:36,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:41:36,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:41:36,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:41:36,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:41:36,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:41:36,432 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:41:36,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:41:36,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:41:36,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:41:36,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:41:36,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:41:36,435 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:41:36,435 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:41:36,435 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:41:36,435 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:41:36,436 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:41:36,436 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:41:36,437 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:41:36,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:41:36,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:41:36,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:41:36,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:41:36,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:41:36,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:41:36,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:41:36,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:41:36,438 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:41:36,439 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:41:36,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:41:36,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:41:36,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:41:36,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:41:36,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:41:36,441 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:41:36,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2023-02-14 14:41:36,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:41:36,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:41:36,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:41:36,748 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:41:36,748 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:41:36,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-14 14:41:37,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:41:38,080 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:41:38,081 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-14 14:41:38,085 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a361a1d/13ce6de1b6da4b24ae64721bc0e7c6ca/FLAG485c0b5c3 [2023-02-14 14:41:38,102 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a361a1d/13ce6de1b6da4b24ae64721bc0e7c6ca [2023-02-14 14:41:38,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:41:38,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:41:38,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:38,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:41:38,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:41:38,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11580a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38, skipping insertion in model container [2023-02-14 14:41:38,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:41:38,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:41:38,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:38,261 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:41:38,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:38,285 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:41:38,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38 WrapperNode [2023-02-14 14:41:38,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:38,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:38,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:41:38,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:41:38,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,314 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-14 14:41:38,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:38,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:41:38,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:41:38,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:41:38,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:41:38,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:41:38,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:41:38,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:41:38,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (1/1) ... [2023-02-14 14:41:38,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:38,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:38,362 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) [2023-02-14 14:41:38,373 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 [2023-02-14 14:41:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:41:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:41:38,450 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:41:38,453 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:41:38,510 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:41:38,515 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:41:38,515 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:41:38,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:38 BoogieIcfgContainer [2023-02-14 14:41:38,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:41:38,517 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:41:38,517 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:41:38,520 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:41:38,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:38,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:41:38" (1/3) ... [2023-02-14 14:41:38,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63759ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:38, skipping insertion in model container [2023-02-14 14:41:38,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:38,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:38" (2/3) ... [2023-02-14 14:41:38,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63759ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:38, skipping insertion in model container [2023-02-14 14:41:38,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:38,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:38" (3/3) ... [2023-02-14 14:41:38,524 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-14 14:41:38,570 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:41:38,571 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:41:38,571 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:41:38,571 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:41:38,571 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:41:38,571 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:41:38,571 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:41:38,571 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:41:38,574 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) [2023-02-14 14:41:38,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:38,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:38,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:38,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:38,590 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:38,591 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:41:38,591 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) [2023-02-14 14:41:38,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:38,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:38,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:38,592 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:38,592 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:38,598 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2023-02-14 14:41:38,599 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 2#L19-2true assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 9#L19-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L17-2true [2023-02-14 14:41:38,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:41:38,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:38,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044860112] [2023-02-14 14:41:38,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:38,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:38,697 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-02-14 14:41:38,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:38,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645132494] [2023-02-14 14:41:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:38,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:38,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-02-14 14:41:38,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:38,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096415838] [2023-02-14 14:41:38,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:38,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:38,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:38,825 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:38,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:38,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:38,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:38,826 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:38,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:38,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:38,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:38,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-02-14 14:41:38,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:38,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:38,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:38,870 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:38,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:38,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:38,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:38,952 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:38,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:38,965 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) [2023-02-14 14:41:38,970 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 [2023-02-14 14:41:38,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:38,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:38,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:38,996 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: [] [2023-02-14 14:41:39,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:39,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,003 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) [2023-02-14 14:41:39,025 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 [2023-02-14 14:41:39,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:39,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:39,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:39,048 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: [] [2023-02-14 14:41:39,053 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 [2023-02-14 14:41:39,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,055 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) [2023-02-14 14:41:39,063 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 [2023-02-14 14:41:39,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:39,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:39,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-14 14:41:39,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,085 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) [2023-02-14 14:41:39,086 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 [2023-02-14 14:41:39,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:39,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:39,125 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:39,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:39,129 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:39,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:39,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:39,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:39,129 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:39,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:39,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:39,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-02-14 14:41:39,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:39,140 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:39,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:39,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:39,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:39,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:39,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:39,227 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:39,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,237 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) [2023-02-14 14:41:39,240 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 [2023-02-14 14:41:39,242 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 [2023-02-14 14:41:39,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:39,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:39,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:39,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:39,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:39,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:39,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:39,283 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 [2023-02-14 14:41:39,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,286 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) [2023-02-14 14:41:39,288 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 [2023-02-14 14:41:39,288 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 [2023-02-14 14:41:39,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:39,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:39,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:39,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:39,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:39,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:39,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:39,325 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 [2023-02-14 14:41:39,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,327 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) [2023-02-14 14:41:39,333 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 [2023-02-14 14:41:39,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:39,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:39,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:39,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:39,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:39,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:39,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:39,348 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 [2023-02-14 14:41:39,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:39,367 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 [2023-02-14 14:41:39,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,369 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) [2023-02-14 14:41:39,373 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 [2023-02-14 14:41:39,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:39,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:39,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:39,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:39,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:39,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:39,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:39,387 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 [2023-02-14 14:41:39,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:39,402 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:39,402 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:39,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,452 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) [2023-02-14 14:41:39,453 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 [2023-02-14 14:41:39,470 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:39,470 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:39,470 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:39,471 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-02-14 14:41:39,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-14 14:41:39,479 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:39,516 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:39,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:39,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:41:39,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:39,610 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:39,612 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-02-14 14:41:39,690 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 31 states and 49 transitions. Complement of second has 9 states. [2023-02-14 14:41:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-02-14 14:41:39,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2023-02-14 14:41:39,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-14 14:41:39,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:39,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-14 14:41:39,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:39,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-14 14:41:39,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:39,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2023-02-14 14:41:39,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:39,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 14 states and 19 transitions. [2023-02-14 14:41:39,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 14:41:39,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 14:41:39,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-02-14 14:41:39,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:39,717 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-14 14:41:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-02-14 14:41:39,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-02-14 14:41:39,739 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) [2023-02-14 14:41:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-02-14 14:41:39,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-14 14:41:39,741 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-14 14:41:39,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:41:39,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-02-14 14:41:39,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:39,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:39,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:39,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:41:39,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:41:39,744 INFO L748 eck$LassoCheckResult]: Stem: 93#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 94#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 95#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 86#L19-2 [2023-02-14 14:41:39,744 INFO L750 eck$LassoCheckResult]: Loop: 86#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 87#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 96#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 91#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 86#L19-2 [2023-02-14 14:41:39,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 14:41:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520293179] [2023-02-14 14:41:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:39,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:39,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:39,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:39,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1537394, now seen corresponding path program 1 times [2023-02-14 14:41:39,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:39,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725911120] [2023-02-14 14:41:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:39,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:39,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:39,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2023-02-14 14:41:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:39,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019368635] [2023-02-14 14:41:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:39,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:39,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019368635] [2023-02-14 14:41:39,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019368635] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:41:39,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914441151] [2023-02-14 14:41:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:39,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:41:39,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:39,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:41:39,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-14 14:41:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:39,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:39,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:39,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:41:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:39,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914441151] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:41:39,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:41:39,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-02-14 14:41:39,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977762593] [2023-02-14 14:41:39,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:41:40,037 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:40,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:40,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:40,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:40,037 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:40,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:40,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:40,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-02-14 14:41:40,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:40,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:40,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:40,114 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:40,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,121 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) [2023-02-14 14:41:40,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:40,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:40,138 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 [2023-02-14 14:41:40,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:40,146 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: [] [2023-02-14 14:41:40,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:40,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,156 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) [2023-02-14 14:41:40,157 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 [2023-02-14 14:41:40,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:40,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:40,200 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 [2023-02-14 14:41:40,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,201 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) [2023-02-14 14:41:40,209 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 [2023-02-14 14:41:40,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:40,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:40,268 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:40,275 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 [2023-02-14 14:41:40,275 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:40,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:40,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:40,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:40,276 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:40,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:40,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:40,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-02-14 14:41:40,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:40,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:40,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:40,351 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:40,351 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:40,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,353 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) [2023-02-14 14:41:40,364 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 [2023-02-14 14:41:40,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:40,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:40,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:40,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:40,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:40,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:40,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:40,376 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 [2023-02-14 14:41:40,389 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:40,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:40,393 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:40,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,397 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) [2023-02-14 14:41:40,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:40,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:40,404 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:40,404 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-02-14 14:41:40,408 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 [2023-02-14 14:41:40,412 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 [2023-02-14 14:41:40,413 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:40,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:40,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:40,439 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 14:41:40,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:40,474 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:40,474 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-02-14 14:41:40,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 32 states and 42 transitions. Complement of second has 9 states. [2023-02-14 14:41:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-02-14 14:41:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-02-14 14:41:40,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-14 14:41:40,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:40,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-14 14:41:40,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:40,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-02-14 14:41:40,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:40,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-02-14 14:41:40,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:40,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 36 transitions. [2023-02-14 14:41:40,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-14 14:41:40,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:40,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2023-02-14 14:41:40,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:40,520 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 36 transitions. [2023-02-14 14:41:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2023-02-14 14:41:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-02-14 14:41:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 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) [2023-02-14 14:41:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2023-02-14 14:41:40,526 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-02-14 14:41:40,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:41:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:41:40,531 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2023-02-14 14:41:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:40,569 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2023-02-14 14:41:40,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2023-02-14 14:41:40,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-14 14:41:40,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 23 states and 29 transitions. [2023-02-14 14:41:40,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-14 14:41:40,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-02-14 14:41:40,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2023-02-14 14:41:40,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:40,572 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-02-14 14:41:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2023-02-14 14:41:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-02-14 14:41:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2023-02-14 14:41:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2023-02-14 14:41:40,575 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-02-14 14:41:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:41:40,578 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-02-14 14:41:40,578 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:41:40,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2023-02-14 14:41:40,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-14 14:41:40,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:40,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:40,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:41:40,581 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2023-02-14 14:41:40,581 INFO L748 eck$LassoCheckResult]: Stem: 277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 279#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 270#L19-2 [2023-02-14 14:41:40,581 INFO L750 eck$LassoCheckResult]: Loop: 270#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 271#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 285#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 284#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 283#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 280#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 274#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 270#L19-2 [2023-02-14 14:41:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2023-02-14 14:41:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:40,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652763638] [2023-02-14 14:41:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:40,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:40,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:40,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1390285212, now seen corresponding path program 2 times [2023-02-14 14:41:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:40,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314113191] [2023-02-14 14:41:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:40,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:40,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:40,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2036023261, now seen corresponding path program 2 times [2023-02-14 14:41:40,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:40,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031521006] [2023-02-14 14:41:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:40,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:40,672 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 [2023-02-14 14:41:40,681 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 [2023-02-14 14:41:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:40,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:40,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031521006] [2023-02-14 14:41:40,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031521006] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:41:40,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761948] [2023-02-14 14:41:40,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:41:40,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:41:40,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:40,749 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:41:40,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-14 14:41:40,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:41:40,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:41:40,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 14:41:40,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:40,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:41:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:40,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761948] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:41:40,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:41:40,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-14 14:41:40,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169106570] [2023-02-14 14:41:40,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:41:41,041 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:41,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:41,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:41,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:41,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:41,043 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,043 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:41,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:41,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-02-14 14:41:41,044 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:41,044 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:41,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:41,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:41,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,121 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) [2023-02-14 14:41:41,125 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 [2023-02-14 14:41:41,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:41,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,163 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 [2023-02-14 14:41:41,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,164 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) [2023-02-14 14:41:41,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:41,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,189 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 [2023-02-14 14:41:41,205 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:41,212 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 [2023-02-14 14:41:41,212 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:41,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:41,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:41,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:41,212 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:41,212 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,212 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:41,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:41,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-02-14 14:41:41,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:41,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:41,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,220 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:41,273 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:41,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,274 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) [2023-02-14 14:41:41,276 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 [2023-02-14 14:41:41,278 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 [2023-02-14 14:41:41,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:41,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:41,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:41,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:41,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:41,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:41,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:41,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:41,298 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:41,298 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:41,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,301 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) [2023-02-14 14:41:41,312 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:41,312 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:41,312 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:41,312 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-02-14 14:41:41,315 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 [2023-02-14 14:41:41,319 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 [2023-02-14 14:41:41,320 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:41,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:41,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:41,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:41,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-14 14:41:41,376 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:41:41,376 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2023-02-14 14:41:41,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 34 states and 42 transitions. Complement of second has 6 states. [2023-02-14 14:41:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2023-02-14 14:41:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 14:41:41,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 7 letters. [2023-02-14 14:41:41,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 7 letters. [2023-02-14 14:41:41,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 14 letters. [2023-02-14 14:41:41,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2023-02-14 14:41:41,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:41,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2023-02-14 14:41:41,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 14:41:41,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 14:41:41,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2023-02-14 14:41:41,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:41,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2023-02-14 14:41:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2023-02-14 14:41:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-02-14 14:41:41,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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) [2023-02-14 14:41:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2023-02-14 14:41:41,405 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2023-02-14 14:41:41,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:41,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:41:41,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:41:41,406 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-02-14 14:41:41,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:41,450 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2023-02-14 14:41:41,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 49 transitions. [2023-02-14 14:41:41,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:41,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 49 transitions. [2023-02-14 14:41:41,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-14 14:41:41,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-14 14:41:41,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 49 transitions. [2023-02-14 14:41:41,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:41,458 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 49 transitions. [2023-02-14 14:41:41,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 49 transitions. [2023-02-14 14:41:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2023-02-14 14:41:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 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) [2023-02-14 14:41:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-14 14:41:41,460 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-14 14:41:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:41:41,461 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-14 14:41:41,461 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 14:41:41,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2023-02-14 14:41:41,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:41,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:41,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:41,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-14 14:41:41,462 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:41,463 INFO L748 eck$LassoCheckResult]: Stem: 511#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 512#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 507#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 509#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 504#L19-2 [2023-02-14 14:41:41,463 INFO L750 eck$LassoCheckResult]: Loop: 504#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 504#L19-2 [2023-02-14 14:41:41,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-02-14 14:41:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:41,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353692789] [2023-02-14 14:41:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,484 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-14 14:41:41,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:41,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566314865] [2023-02-14 14:41:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:41,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,503 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2023-02-14 14:41:41,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130570640] [2023-02-14 14:41:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:41,522 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:41,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:41,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:41,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:41,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:41,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:41,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:41,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-02-14 14:41:41,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:41,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:41,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,528 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,556 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:41,557 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:41,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,558 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) [2023-02-14 14:41:41,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:41,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,592 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 [2023-02-14 14:41:41,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:41,609 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: [] [2023-02-14 14:41:41,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:41,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,617 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) [2023-02-14 14:41:41,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:41,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,641 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 [2023-02-14 14:41:41,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:41,650 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: [] [2023-02-14 14:41:41,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:41,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,658 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) [2023-02-14 14:41:41,660 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 [2023-02-14 14:41:41,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:41,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,689 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 [2023-02-14 14:41:41,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,691 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) [2023-02-14 14:41:41,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:41,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:41,713 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 [2023-02-14 14:41:41,725 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:41,728 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 [2023-02-14 14:41:41,728 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:41,728 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:41,728 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:41,728 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:41,728 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:41,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:41,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:41,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-02-14 14:41:41,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:41,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:41,729 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,732 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,738 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:41,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:41,765 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:41,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,766 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) [2023-02-14 14:41:41,769 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 [2023-02-14 14:41:41,804 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 [2023-02-14 14:41:41,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:41,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:41,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:41,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:41,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:41,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:41,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:41,821 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 [2023-02-14 14:41:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,822 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) [2023-02-14 14:41:41,825 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 [2023-02-14 14:41:41,826 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 [2023-02-14 14:41:41,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:41,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:41,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:41,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:41,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:41,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:41,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:41,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:41,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,858 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) [2023-02-14 14:41:41,867 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 [2023-02-14 14:41:41,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:41,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:41,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:41,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:41,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:41,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:41,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:41,881 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 [2023-02-14 14:41:41,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:41,889 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:41,889 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:41,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:41,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:41,891 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) [2023-02-14 14:41:41,892 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 [2023-02-14 14:41:41,892 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:41,892 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:41,892 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:41,893 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-02-14 14:41:41,897 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 [2023-02-14 14:41:41,898 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:41,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:41,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:41,931 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:41,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:41,932 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:41,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-14 14:41:41,943 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 67 states and 79 transitions. Complement of second has 5 states. [2023-02-14 14:41:41,944 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 [2023-02-14 14:41:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-14 14:41:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-14 14:41:41,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-14 14:41:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-14 14:41:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 14:41:41,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:41,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 79 transitions. [2023-02-14 14:41:41,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:41,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 72 transitions. [2023-02-14 14:41:41,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-14 14:41:41,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 14:41:41,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 72 transitions. [2023-02-14 14:41:41,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:41,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-02-14 14:41:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 72 transitions. [2023-02-14 14:41:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 37. [2023-02-14 14:41:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 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) [2023-02-14 14:41:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-02-14 14:41:41,965 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-02-14 14:41:41,965 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-02-14 14:41:41,965 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 14:41:41,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2023-02-14 14:41:41,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:41,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:41,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:41,967 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 2, 1, 1, 1, 1] [2023-02-14 14:41:41,967 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:41,967 INFO L748 eck$LassoCheckResult]: Stem: 645#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 646#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 641#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 638#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 639#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 640#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 673#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 671#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 669#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 667#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 665#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 663#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 661#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 659#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 647#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 648#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 649#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 650#L19-2 [2023-02-14 14:41:41,968 INFO L750 eck$LassoCheckResult]: Loop: 650#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 650#L19-2 [2023-02-14 14:41:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash -178305705, now seen corresponding path program 3 times [2023-02-14 14:41:41,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:41,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276038765] [2023-02-14 14:41:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:41,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:41,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:42,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-02-14 14:41:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:42,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618067775] [2023-02-14 14:41:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:42,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:42,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1232509539, now seen corresponding path program 4 times [2023-02-14 14:41:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:42,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349553924] [2023-02-14 14:41:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:42,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:42,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:42,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:42,056 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:42,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:42,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:42,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:42,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:42,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:42,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:42,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-02-14 14:41:42,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:42,057 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:42,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:42,094 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:42,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:42,097 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-02-14 14:41:42,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:42,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:42,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-14 14:41:42,131 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 [2023-02-14 14:41:42,137 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 [2023-02-14 14:41:42,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:42,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:42,145 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-02-14 14:41:42,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:42,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:42,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-14 14:41:42,181 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:42,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:42,188 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:42,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:42,188 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:42,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:42,188 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:42,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:42,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:42,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-02-14 14:41:42,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:42,189 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:42,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:42,230 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:42,230 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:42,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:42,231 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-02-14 14:41:42,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-14 14:41:42,236 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 [2023-02-14 14:41:42,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:42,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:42,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:42,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:42,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:42,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:42,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:42,259 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:42,273 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:42,273 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:42,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:42,277 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-02-14 14:41:42,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-14 14:41:42,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:42,281 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:42,281 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:42,281 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-02-14 14:41:42,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:42,288 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:42,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,333 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:42,334 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:42,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2023-02-14 14:41:42,344 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 [2023-02-14 14:41:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-14 14:41:42,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-14 14:41:42,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:42,345 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,382 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:42,383 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:42,383 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,391 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2023-02-14 14:41:42,392 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 [2023-02-14 14:41:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-14 14:41:42,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-14 14:41:42,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:42,393 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:42,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:42,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:42,436 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:42,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 42 states and 51 transitions. Complement of second has 4 states. [2023-02-14 14:41:42,447 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 [2023-02-14 14:41:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-14 14:41:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-14 14:41:42,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-14 14:41:42,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:42,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 18 letters. Loop has 1 letters. [2023-02-14 14:41:42,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:42,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 2 letters. [2023-02-14 14:41:42,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:42,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2023-02-14 14:41:42,450 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:42,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-02-14 14:41:42,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:41:42,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:41:42,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:41:42,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:41:42,451 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:42,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:42,451 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:42,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 14:41:42,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:41:42,451 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:42,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:41:42,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:41:42 BoogieIcfgContainer [2023-02-14 14:41:42,457 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:41:42,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:41:42,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:41:42,458 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:41:42,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:38" (3/4) ... [2023-02-14 14:41:42,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:41:42,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:41:42,461 INFO L158 Benchmark]: Toolchain (without parser) took 4355.96ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 85.4MB in the beginning and 104.7MB in the end (delta: -19.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-02-14 14:41:42,462 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:42,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:41:42,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.55ms. Allocated memory is still 130.0MB. Free memory was 76.1MB in the beginning and 74.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:41:42,462 INFO L158 Benchmark]: Boogie Preprocessor took 19.18ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 74.0MB in the end (delta: 523.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:42,463 INFO L158 Benchmark]: RCFGBuilder took 179.57ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 65.6MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:41:42,463 INFO L158 Benchmark]: BuchiAutomizer took 3940.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 104.7MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:42,463 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:42,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.55ms. Allocated memory is still 130.0MB. Free memory was 76.1MB in the beginning and 74.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.18ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 74.0MB in the end (delta: 523.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 179.57ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 65.6MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3940.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 104.7MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. 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 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function j and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 6 iterations. TraceHistogramMax:11. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 44 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 55 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax174 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp93 dnf100 smp100 tf113 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 14:41:42,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:42,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-14 14:41:42,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:43,081 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