./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.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 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:31:20,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:31:20,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:31:20,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:31:20,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:31:20,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:31:20,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:31:20,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:31:20,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:31:20,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:31:20,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:31:20,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:31:20,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:31:20,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:31:20,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:31:20,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:31:20,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:31:20,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:31:20,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:31:20,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:31:20,440 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:31:20,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:31:20,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:31:20,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:31:20,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:31:20,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:31:20,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:31:20,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:31:20,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:31:20,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:31:20,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:31:20,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:31:20,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:31:20,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:31:20,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:31:20,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:31:20,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:31:20,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:31:20,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:31:20,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:31:20,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:31:20,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:31:20,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:31:20,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:31:20,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:31:20,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:31:20,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:31:20,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:31:20,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:31:20,490 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:31:20,490 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:31:20,490 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:31:20,491 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:31:20,491 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:31:20,491 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:31:20,491 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:31:20,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:31:20,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:31:20,493 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:31:20,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:31:20,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:31:20,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:31:20,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:31:20,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:31:20,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:31:20,494 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:31:20,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 [2022-07-22 01:31:20,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:31:20,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:31:20,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:31:20,792 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:31:20,795 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:31:20,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-07-22 01:31:20,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a2e7d66/784ac06d91cb440d962ee67f8e66c83d/FLAG02fc1a40a [2022-07-22 01:31:21,179 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:31:21,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-07-22 01:31:21,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a2e7d66/784ac06d91cb440d962ee67f8e66c83d/FLAG02fc1a40a [2022-07-22 01:31:21,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a2e7d66/784ac06d91cb440d962ee67f8e66c83d [2022-07-22 01:31:21,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:31:21,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:31:21,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:31:21,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:31:21,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:31:21,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afc1848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21, skipping insertion in model container [2022-07-22 01:31:21,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:31:21,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:31:21,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:31:21,317 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:31:21,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:31:21,349 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:31:21,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21 WrapperNode [2022-07-22 01:31:21,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:31:21,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:31:21,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:31:21,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:31:21,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,390 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-22 01:31:21,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:31:21,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:31:21,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:31:21,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:31:21,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:31:21,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:31:21,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:31:21,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:31:21,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (1/1) ... [2022-07-22 01:31:21,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:21,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:21,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:21,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:31:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:31:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:31:21,492 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:31:21,494 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:31:21,577 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:31:21,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:31:21,582 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:31:21,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:21 BoogieIcfgContainer [2022-07-22 01:31:21,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:31:21,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:31:21,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:31:21,587 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:31:21,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:21,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:31:21" (1/3) ... [2022-07-22 01:31:21,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66586e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:31:21, skipping insertion in model container [2022-07-22 01:31:21,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:21,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:21" (2/3) ... [2022-07-22 01:31:21,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66586e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:31:21, skipping insertion in model container [2022-07-22 01:31:21,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:21,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:21" (3/3) ... [2022-07-22 01:31:21,590 INFO L354 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2022-07-22 01:31:21,639 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:31:21,640 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:31:21,640 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:31:21,640 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:31:21,640 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:31:21,640 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:31:21,640 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:31:21,641 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:31:21,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:21,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:31:21,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:21,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:21,657 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:31:21,657 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:21,657 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:31:21,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:21,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:31:21,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:21,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:21,659 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:31:21,659 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:21,663 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5#L18-1true [2022-07-22 01:31:21,664 INFO L754 eck$LassoCheckResult]: Loop: 5#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(main_~i~0#1 >= 10); 2#L12-2true assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 7#L15-1true assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5#L18-1true [2022-07-22 01:31:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:31:21,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827535300] [2022-07-22 01:31:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:21,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:21,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-07-22 01:31:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:21,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176474862] [2022-07-22 01:31:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:21,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,741 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-07-22 01:31:21,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:21,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980849785] [2022-07-22 01:31:21,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:21,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:21,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:21,863 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:21,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:21,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:21,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:21,864 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:21,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:21,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:21,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:21,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-07-22 01:31:21,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:21,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:21,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:21,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:21,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:21,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:21,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:21,979 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:21,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:21,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:21,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:21,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:31:22,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:22,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:22,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:22,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:22,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:31:22,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:22,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:22,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:22,096 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:22,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:31:22,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:22,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:22,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:22,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:22,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 01:31:22,179 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:22,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,199 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:22,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:22,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:22,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:22,199 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:22,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:22,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:22,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-07-22 01:31:22,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:22,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:22,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:22,277 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:22,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 01:31:22,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:22,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:22,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:22,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:22,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:22,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:22,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:22,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:22,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:22,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 01:31:22,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:22,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:22,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:22,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:22,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:22,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:22,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:22,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:22,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 01:31:22,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:22,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:22,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:22,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:22,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:22,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:22,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:22,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:22,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 01:31:22,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:22,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:22,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:22,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:22,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:22,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:22,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:22,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:22,431 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:22,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:22,434 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:31:22,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:22,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:22,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 01:31:22,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:22,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:22,438 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:22,438 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-22 01:31:22,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:22,472 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:22,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:22,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:22,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:22,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:22,617 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:22,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:22,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 8 states. [2022-07-22 01:31:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:31:22,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-22 01:31:22,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-22 01:31:22,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:22,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-22 01:31:22,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:22,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-22 01:31:22,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:22,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-07-22 01:31:22,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-22 01:31:22,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-07-22 01:31:22,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-22 01:31:22,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-22 01:31:22,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-07-22 01:31:22,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:22,721 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-07-22 01:31:22,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-22 01:31:22,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-07-22 01:31:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-07-22 01:31:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 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) [2022-07-22 01:31:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-07-22 01:31:22,784 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-22 01:31:22,784 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-22 01:31:22,785 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:31:22,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-07-22 01:31:22,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-22 01:31:22,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:22,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:22,787 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:31:22,787 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:22,788 INFO L752 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 99#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 104#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-22 01:31:22,790 INFO L754 eck$LassoCheckResult]: Loop: 106#L12 assume !(main_~i~0#1 >= 10); 92#L12-2 assume !(main_~i~0#1 <= 0); 94#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 108#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-22 01:31:22,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:22,793 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-22 01:31:22,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:22,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796809099] [2022-07-22 01:31:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:22,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:22,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:22,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-07-22 01:31:22,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:22,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711136807] [2022-07-22 01:31:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:22,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:22,828 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:22,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:22,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-07-22 01:31:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:22,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920026022] [2022-07-22 01:31:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:22,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920026022] [2022-07-22 01:31:22,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920026022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:31:22,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:31:22,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:31:22,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866034633] [2022-07-22 01:31:22,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:31:22,933 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:22,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:22,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:22,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:22,934 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:22,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:22,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:22,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-07-22 01:31:22,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:22,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:22,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:22,990 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:22,990 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:22,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:22,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,005 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 01:31:23,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:23,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,032 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:23,032 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: [] [2022-07-22 01:31:23,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 01:31:23,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:23,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 01:31:23,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:23,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,172 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:23,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,176 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:23,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:23,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:23,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:23,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:23,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,176 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:23,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:23,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-07-22 01:31:23,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:23,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:23,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:23,229 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:23,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,232 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:31:23,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:23,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:23,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:23,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:23,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:23,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:23,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:23,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:23,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:31:23,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:23,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:23,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:23,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:23,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:23,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:23,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:23,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:23,299 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:23,301 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:23,302 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:31:23,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,303 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 01:31:23,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:23,304 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:23,304 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:23,304 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-22 01:31:23,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,324 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:23,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:23,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:23,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:23,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:23,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:23,440 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:31:23,440 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 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) [2022-07-22 01:31:23,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. 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 44 states and 73 transitions. Complement of second has 7 states. [2022-07-22 01:31:23,474 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 [2022-07-22 01:31:23,475 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) [2022-07-22 01:31:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-07-22 01:31:23,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-22 01:31:23,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:23,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-22 01:31:23,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:23,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-22 01:31:23,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:23,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 73 transitions. [2022-07-22 01:31:23,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-22 01:31:23,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 36 states and 59 transitions. [2022-07-22 01:31:23,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-22 01:31:23,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-07-22 01:31:23,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 59 transitions. [2022-07-22 01:31:23,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:23,486 INFO L369 hiAutomatonCegarLoop]: Abstraction has 36 states and 59 transitions. [2022-07-22 01:31:23,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 59 transitions. [2022-07-22 01:31:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-07-22 01:31:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 27 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) [2022-07-22 01:31:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2022-07-22 01:31:23,489 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-07-22 01:31:23,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:31:23,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:31:23,491 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:23,501 INFO L93 Difference]: Finished difference Result 37 states and 56 transitions. [2022-07-22 01:31:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:31:23,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 56 transitions. [2022-07-22 01:31:23,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:31:23,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 49 transitions. [2022-07-22 01:31:23,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-22 01:31:23,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-22 01:31:23,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2022-07-22 01:31:23,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:23,503 INFO L369 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2022-07-22 01:31:23,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2022-07-22 01:31:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-07-22 01:31:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 25 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) [2022-07-22 01:31:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2022-07-22 01:31:23,508 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-07-22 01:31:23,508 INFO L374 stractBuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-07-22 01:31:23,509 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:31:23,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2022-07-22 01:31:23,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:31:23,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:23,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:23,511 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 01:31:23,511 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:23,512 INFO L752 eck$LassoCheckResult]: Stem: 274#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 278#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 279#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 266#L12-2 assume !(main_~i~0#1 <= 0); 267#L15-1 [2022-07-22 01:31:23,512 INFO L754 eck$LassoCheckResult]: Loop: 267#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 276#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 285#L12 assume !(main_~i~0#1 >= 10); 283#L12-2 assume !(main_~i~0#1 <= 0); 267#L15-1 [2022-07-22 01:31:23,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-22 01:31:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:23,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488659548] [2022-07-22 01:31:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:23,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,519 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:23,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:23,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-07-22 01:31:23,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:23,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413188130] [2022-07-22 01:31:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:23,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,534 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-07-22 01:31:23,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:23,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362416441] [2022-07-22 01:31:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:23,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:23,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:23,562 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:23,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:23,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:23,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:23,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:23,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:23,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:23,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-07-22 01:31:23,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:23,562 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:23,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:23,622 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,623 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:23,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:31:23,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:23,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:23,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:23,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:23,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,695 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) [2022-07-22 01:31:23,695 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 [2022-07-22 01:31:23,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:23,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,716 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:23,716 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:23,750 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 [2022-07-22 01:31:23,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,751 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) [2022-07-22 01:31:23,752 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 [2022-07-22 01:31:23,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:23,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,802 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 [2022-07-22 01:31:23,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,804 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) [2022-07-22 01:31:23,804 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 [2022-07-22 01:31:23,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:23,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:23,880 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:23,883 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 [2022-07-22 01:31:23,884 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:23,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:23,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:23,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:23,884 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:23,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:23,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:23,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-07-22 01:31:23,884 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:23,884 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:23,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:23,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:23,936 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:23,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,946 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) [2022-07-22 01:31:23,947 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 [2022-07-22 01:31:23,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:23,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:23,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:23,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:23,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:23,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:23,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:23,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:23,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:23,991 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 [2022-07-22 01:31:23,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:23,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:23,992 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) [2022-07-22 01:31:23,993 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 [2022-07-22 01:31:23,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:24,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:24,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:24,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:24,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:24,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:24,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:24,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:24,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:24,010 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:31:24,010 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:31:24,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,011 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) [2022-07-22 01:31:24,012 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 [2022-07-22 01:31:24,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:24,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:24,013 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:24,013 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:31:24,037 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 [2022-07-22 01:31:24,038 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:24,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:24,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:24,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,090 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 90 transitions. Complement of second has 7 states. [2022-07-22 01:31:24,091 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 [2022-07-22 01:31:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:31:24,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-22 01:31:24,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-22 01:31:24,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-07-22 01:31:24,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 90 transitions. [2022-07-22 01:31:24,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-07-22 01:31:24,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 85 transitions. [2022-07-22 01:31:24,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-22 01:31:24,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-22 01:31:24,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 85 transitions. [2022-07-22 01:31:24,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:24,096 INFO L369 hiAutomatonCegarLoop]: Abstraction has 55 states and 85 transitions. [2022-07-22 01:31:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 85 transitions. [2022-07-22 01:31:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-07-22 01:31:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.6122448979591837) internal successors, (79), 48 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2022-07-22 01:31:24,100 INFO L392 hiAutomatonCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-07-22 01:31:24,100 INFO L374 stractBuchiCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-07-22 01:31:24,100 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:31:24,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 79 transitions. [2022-07-22 01:31:24,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-07-22 01:31:24,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:24,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:24,101 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:31:24,101 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:24,102 INFO L752 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 410#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 415#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 426#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 420#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 421#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 427#L18-1 [2022-07-22 01:31:24,102 INFO L754 eck$LassoCheckResult]: Loop: 427#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 422#L12 assume !(main_~i~0#1 >= 10); 423#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 433#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 427#L18-1 [2022-07-22 01:31:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,102 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-07-22 01:31:24,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560755081] [2022-07-22 01:31:24,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:24,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560755081] [2022-07-22 01:31:24,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560755081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:31:24,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:31:24,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:31:24,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807791147] [2022-07-22 01:31:24,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:31:24,114 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:31:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2022-07-22 01:31:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603479839] [2022-07-22 01:31:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:24,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603479839] [2022-07-22 01:31:24,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603479839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:31:24,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:31:24,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:31:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442028868] [2022-07-22 01:31:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:31:24,126 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:31:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:31:24,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:31:24,127 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. cyclomatic complexity: 36 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:24,135 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2022-07-22 01:31:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:31:24,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2022-07-22 01:31:24,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:31:24,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 60 transitions. [2022-07-22 01:31:24,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-22 01:31:24,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-22 01:31:24,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 60 transitions. [2022-07-22 01:31:24,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:24,139 INFO L369 hiAutomatonCegarLoop]: Abstraction has 41 states and 60 transitions. [2022-07-22 01:31:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 60 transitions. [2022-07-22 01:31:24,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-07-22 01:31:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.475) internal successors, (59), 39 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2022-07-22 01:31:24,142 INFO L392 hiAutomatonCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-07-22 01:31:24,142 INFO L374 stractBuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-07-22 01:31:24,142 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:31:24,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. [2022-07-22 01:31:24,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:31:24,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:24,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:24,143 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-22 01:31:24,143 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:24,144 INFO L752 eck$LassoCheckResult]: Stem: 508#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 509#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 517#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 524#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 522#L12-2 assume !(main_~i~0#1 <= 0); 514#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 515#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 534#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 504#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 505#L15-1 [2022-07-22 01:31:24,144 INFO L754 eck$LassoCheckResult]: Loop: 505#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 520#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 533#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 531#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 505#L15-1 [2022-07-22 01:31:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,144 INFO L85 PathProgramCache]: Analyzing trace with hash 588716517, now seen corresponding path program 1 times [2022-07-22 01:31:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260060774] [2022-07-22 01:31:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:24,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260060774] [2022-07-22 01:31:24,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260060774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:31:24,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:31:24,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:31:24,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584821873] [2022-07-22 01:31:24,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:31:24,162 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:31:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1709112, now seen corresponding path program 1 times [2022-07-22 01:31:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279500127] [2022-07-22 01:31:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:24,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279500127] [2022-07-22 01:31:24,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279500127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:31:24,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:31:24,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:31:24,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076012753] [2022-07-22 01:31:24,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:31:24,173 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:31:24,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:24,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:31:24,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:31:24,174 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. cyclomatic complexity: 24 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:24,182 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-07-22 01:31:24,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:31:24,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2022-07-22 01:31:24,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-07-22 01:31:24,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 45 states and 60 transitions. [2022-07-22 01:31:24,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-07-22 01:31:24,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-07-22 01:31:24,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 60 transitions. [2022-07-22 01:31:24,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:24,185 INFO L369 hiAutomatonCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-07-22 01:31:24,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 60 transitions. [2022-07-22 01:31:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-07-22 01:31:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-07-22 01:31:24,188 INFO L392 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-22 01:31:24,188 INFO L374 stractBuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-22 01:31:24,188 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:31:24,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2022-07-22 01:31:24,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:31:24,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:24,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:24,190 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:31:24,190 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:24,190 INFO L752 eck$LassoCheckResult]: Stem: 609#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 610#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 604#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 605#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 600#L12-2 assume !(main_~i~0#1 <= 0); 601#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 611#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 624#L12 assume !(main_~i~0#1 >= 10); 619#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 615#L15-1 [2022-07-22 01:31:24,190 INFO L754 eck$LassoCheckResult]: Loop: 615#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 616#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 621#L12 assume !(main_~i~0#1 >= 10); 620#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 615#L15-1 [2022-07-22 01:31:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash 588716579, now seen corresponding path program 1 times [2022-07-22 01:31:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592759720] [2022-07-22 01:31:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:24,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592759720] [2022-07-22 01:31:24,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592759720] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:31:24,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030741438] [2022-07-22 01:31:24,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:31:24,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,217 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:31:24,229 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 [2022-07-22 01:31:24,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 01:31:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:31:24,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:31:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030741438] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:31:24,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:31:24,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 01:31:24,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158000658] [2022-07-22 01:31:24,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:31:24,296 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:31:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1709174, now seen corresponding path program 2 times [2022-07-22 01:31:24,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446242564] [2022-07-22 01:31:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,301 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:24,352 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:24,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:24,353 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:24,353 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:24,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:24,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:24,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:24,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-07-22 01:31:24,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:24,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:24,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,403 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:24,403 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:24,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,404 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) [2022-07-22 01:31:24,405 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 [2022-07-22 01:31:24,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:24,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:24,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:24,428 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: [] [2022-07-22 01:31:24,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:24,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,446 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) [2022-07-22 01:31:24,446 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 [2022-07-22 01:31:24,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:24,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:24,467 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:24,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:24,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-22 01:31:24,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,496 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) [2022-07-22 01:31:24,497 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 [2022-07-22 01:31:24,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:24,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:24,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-22 01:31:24,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,541 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) [2022-07-22 01:31:24,542 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 [2022-07-22 01:31:24,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:24,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:24,603 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:24,621 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 [2022-07-22 01:31:24,622 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:24,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:24,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:24,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:24,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:24,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:24,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:24,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-07-22 01:31:24,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:24,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:24,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:24,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:24,679 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,681 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) [2022-07-22 01:31:24,681 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 [2022-07-22 01:31:24,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:24,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:24,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:24,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:24,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:24,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:24,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:24,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:24,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:24,721 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 [2022-07-22 01:31:24,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,736 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) [2022-07-22 01:31:24,737 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 [2022-07-22 01:31:24,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:24,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:24,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:24,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:24,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:24,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:24,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:24,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:24,775 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:24,779 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:24,779 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:31:24,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:24,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:24,782 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) [2022-07-22 01:31:24,783 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 [2022-07-22 01:31:24,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:24,783 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:24,783 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:24,783 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:31:24,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-22 01:31:24,799 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:24,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:24,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:24,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:24,858 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:24,858 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-07-22 01:31:24,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 101 states and 136 transitions. Complement of second has 7 states. [2022-07-22 01:31:24,903 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 [2022-07-22 01:31:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-07-22 01:31:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-07-22 01:31:24,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-22 01:31:24,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 13 letters. Loop has 4 letters. [2022-07-22 01:31:24,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 8 letters. [2022-07-22 01:31:24,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:24,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 136 transitions. [2022-07-22 01:31:24,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-07-22 01:31:24,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 91 states and 122 transitions. [2022-07-22 01:31:24,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-07-22 01:31:24,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-07-22 01:31:24,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 122 transitions. [2022-07-22 01:31:24,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:24,906 INFO L369 hiAutomatonCegarLoop]: Abstraction has 91 states and 122 transitions. [2022-07-22 01:31:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 122 transitions. [2022-07-22 01:31:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2022-07-22 01:31:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2022-07-22 01:31:24,912 INFO L392 hiAutomatonCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-07-22 01:31:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:24,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:31:24,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:31:24,912 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,956 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 [2022-07-22 01:31:24,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:24,968 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2022-07-22 01:31:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 01:31:24,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 174 transitions. [2022-07-22 01:31:24,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-07-22 01:31:24,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 108 states and 137 transitions. [2022-07-22 01:31:24,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-07-22 01:31:24,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-07-22 01:31:24,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 137 transitions. [2022-07-22 01:31:24,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:24,974 INFO L369 hiAutomatonCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-07-22 01:31:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 137 transitions. [2022-07-22 01:31:24,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86. [2022-07-22 01:31:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 85 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-07-22 01:31:24,978 INFO L392 hiAutomatonCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-07-22 01:31:24,978 INFO L374 stractBuchiCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-07-22 01:31:24,978 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:31:24,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 111 transitions. [2022-07-22 01:31:24,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-07-22 01:31:24,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:24,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:24,980 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 01:31:24,980 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:24,980 INFO L752 eck$LassoCheckResult]: Stem: 1079#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1080#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1083#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1093#L12 assume !(main_~i~0#1 >= 10); 1102#L12-2 assume !(main_~i~0#1 <= 0); 1101#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1099#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1096#L12 assume !(main_~i~0#1 >= 10); 1095#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1094#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1074#L18-1 [2022-07-22 01:31:24,980 INFO L754 eck$LassoCheckResult]: Loop: 1074#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1075#L12 assume !(main_~i~0#1 >= 10); 1123#L12-2 assume !(main_~i~0#1 <= 0); 1085#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1074#L18-1 [2022-07-22 01:31:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1449615143, now seen corresponding path program 1 times [2022-07-22 01:31:24,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64543370] [2022-07-22 01:31:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,984 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 2 times [2022-07-22 01:31:24,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539601785] [2022-07-22 01:31:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:24,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:24,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash -130036926, now seen corresponding path program 2 times [2022-07-22 01:31:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:24,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652427186] [2022-07-22 01:31:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:25,005 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:25,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:25,035 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:25,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:25,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:25,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:25,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:25,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:25,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:25,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-07-22 01:31:25,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:25,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:25,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,074 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:25,074 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,090 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) [2022-07-22 01:31:25,091 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 [2022-07-22 01:31:25,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:25,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-22 01:31:25,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,130 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) [2022-07-22 01:31:25,131 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 [2022-07-22 01:31:25,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:25,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,153 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:25,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-07-22 01:31:25,168 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:25,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:25,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:25,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:25,169 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:25,169 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,169 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:25,169 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:25,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-07-22 01:31:25,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:25,169 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:25,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:25,210 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:25,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,211 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:31:25,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:25,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:25,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:25,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:25,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:25,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:25,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:25,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:25,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:25,223 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:25,223 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:31:25,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,225 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:31:25,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:25,226 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:25,226 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:25,226 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-22 01:31:25,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-22 01:31:25,250 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:25,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:25,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:25,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:25,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:25,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:25,298 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:25,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-07-22 01:31:25,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Result 115 states and 145 transitions. Complement of second has 7 states. [2022-07-22 01:31:25,327 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 [2022-07-22 01:31:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-07-22 01:31:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:31:25,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-22 01:31:25,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:25,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-22 01:31:25,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:25,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 8 letters. [2022-07-22 01:31:25,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:25,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 145 transitions. [2022-07-22 01:31:25,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-07-22 01:31:25,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 97 states and 125 transitions. [2022-07-22 01:31:25,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-07-22 01:31:25,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-07-22 01:31:25,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 125 transitions. [2022-07-22 01:31:25,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:25,339 INFO L369 hiAutomatonCegarLoop]: Abstraction has 97 states and 125 transitions. [2022-07-22 01:31:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 125 transitions. [2022-07-22 01:31:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-07-22 01:31:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.302325581395349) internal successors, (112), 85 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-07-22 01:31:25,342 INFO L392 hiAutomatonCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-07-22 01:31:25,342 INFO L374 stractBuchiCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-07-22 01:31:25,342 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:31:25,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 112 transitions. [2022-07-22 01:31:25,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-07-22 01:31:25,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:25,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:25,356 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1, 1] [2022-07-22 01:31:25,356 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:25,356 INFO L752 eck$LassoCheckResult]: Stem: 1346#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1347#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1351#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1345#L12 assume !(main_~i~0#1 >= 10); 1352#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1357#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1410#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1343#L12 assume !(main_~i~0#1 >= 10); 1339#L12-2 assume !(main_~i~0#1 <= 0); 1340#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1350#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1342#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1337#L12-2 [2022-07-22 01:31:25,356 INFO L754 eck$LassoCheckResult]: Loop: 1337#L12-2 assume !(main_~i~0#1 <= 0); 1338#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1356#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1399#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1337#L12-2 [2022-07-22 01:31:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1818617978, now seen corresponding path program 1 times [2022-07-22 01:31:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:25,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060347699] [2022-07-22 01:31:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:25,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:25,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:25,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060347699] [2022-07-22 01:31:25,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060347699] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:31:25,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269589257] [2022-07-22 01:31:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:25,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:31:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,387 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-07-22 01:31:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:25,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:25,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:25,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:31:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:25,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269589257] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:31:25,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:31:25,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 01:31:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663220173] [2022-07-22 01:31:25,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:31:25,452 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:31:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-07-22 01:31:25,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:25,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178194023] [2022-07-22 01:31:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:25,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:25,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:25,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:25,484 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:25,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:25,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:25,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:25,485 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:25,485 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:25,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:25,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-07-22 01:31:25,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:25,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:25,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,545 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:25,545 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:25,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,556 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:31:25,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:25,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:25,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:25,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,635 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-22 01:31:25,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:25,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:25,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:25,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,666 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-22 01:31:25,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:25,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:25,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:25,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,724 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-22 01:31:25,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:25,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,750 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-22 01:31:25,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:25,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:25,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:25,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:25,845 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:25,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:25,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:25,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:25,845 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:25,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,845 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:25,845 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:25,845 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-07-22 01:31:25,845 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:25,845 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:25,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:25,884 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:25,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:25,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,885 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-22 01:31:25,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:25,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:25,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:25,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:25,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:25,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:25,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:25,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:25,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-07-22 01:31:25,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,952 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-22 01:31:25,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:25,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:25,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:25,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:25,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:25,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:25,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:25,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:25,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-22 01:31:25,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:25,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:25,994 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:25,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-22 01:31:25,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:26,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:26,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:26,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:26,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:26,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:26,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:26,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:26,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:26,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,037 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-22 01:31:26,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:26,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:26,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:26,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:26,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:26,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:26,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:26,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:26,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:26,053 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:26,053 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:31:26,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,055 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-22 01:31:26,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:26,056 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:26,056 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:26,056 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:31:26,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-22 01:31:26,073 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:26,126 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:26,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-07-22 01:31:26,155 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Result 188 states and 256 transitions. Complement of second has 7 states. [2022-07-22 01:31:26,155 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 [2022-07-22 01:31:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-07-22 01:31:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:31:26,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-22 01:31:26,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:26,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-07-22 01:31:26,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:26,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-07-22 01:31:26,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:26,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 256 transitions. [2022-07-22 01:31:26,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-07-22 01:31:26,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 140 states and 182 transitions. [2022-07-22 01:31:26,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-07-22 01:31:26,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2022-07-22 01:31:26,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 182 transitions. [2022-07-22 01:31:26,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:26,163 INFO L369 hiAutomatonCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-07-22 01:31:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 182 transitions. [2022-07-22 01:31:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 94. [2022-07-22 01:31:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 93 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-07-22 01:31:26,183 INFO L392 hiAutomatonCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-07-22 01:31:26,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 01:31:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 01:31:26,184 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:26,227 INFO L93 Difference]: Finished difference Result 160 states and 178 transitions. [2022-07-22 01:31:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 01:31:26,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 178 transitions. [2022-07-22 01:31:26,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-07-22 01:31:26,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 150 states and 168 transitions. [2022-07-22 01:31:26,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2022-07-22 01:31:26,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-07-22 01:31:26,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 168 transitions. [2022-07-22 01:31:26,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:26,232 INFO L369 hiAutomatonCegarLoop]: Abstraction has 150 states and 168 transitions. [2022-07-22 01:31:26,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 168 transitions. [2022-07-22 01:31:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2022-07-22 01:31:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.1205673758865249) internal successors, (158), 140 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 158 transitions. [2022-07-22 01:31:26,235 INFO L392 hiAutomatonCegarLoop]: Abstraction has 141 states and 158 transitions. [2022-07-22 01:31:26,236 INFO L374 stractBuchiCegarLoop]: Abstraction has 141 states and 158 transitions. [2022-07-22 01:31:26,236 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-22 01:31:26,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 158 transitions. [2022-07-22 01:31:26,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-07-22 01:31:26,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:26,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:26,238 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 9, 9, 6, 4, 2, 1, 1, 1] [2022-07-22 01:31:26,238 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:31:26,238 INFO L752 eck$LassoCheckResult]: Stem: 2011#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2012#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2019#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2030#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 2031#L12-2 assume !(main_~i~0#1 <= 0); 2052#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 2051#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2049#L12 assume !(main_~i~0#1 >= 10); 2048#L12-2 assume !(main_~i~0#1 <= 0); 2047#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 2046#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2045#L12 assume !(main_~i~0#1 >= 10); 2044#L12-2 assume !(main_~i~0#1 <= 0); 2043#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 2042#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2041#L12 assume !(main_~i~0#1 >= 10); 2038#L12-2 assume !(main_~i~0#1 <= 0); 2040#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 2039#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2036#L12 assume !(main_~i~0#1 >= 10); 2037#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 2104#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2102#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2101#L12 assume !(main_~i~0#1 >= 10); 2100#L12-2 assume !(main_~i~0#1 <= 0); 2099#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2098#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2097#L12 assume !(main_~i~0#1 >= 10); 2096#L12-2 assume !(main_~i~0#1 <= 0); 2095#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2094#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2093#L12 assume !(main_~i~0#1 >= 10); 2092#L12-2 assume !(main_~i~0#1 <= 0); 2091#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2090#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2089#L12 assume !(main_~i~0#1 >= 10); 2088#L12-2 assume !(main_~i~0#1 <= 0); 2087#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2086#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2064#L12 assume !(main_~i~0#1 >= 10); 2068#L12-2 assume !(main_~i~0#1 <= 0); 2066#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 2063#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2058#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 2057#L12-2 [2022-07-22 01:31:26,238 INFO L754 eck$LassoCheckResult]: Loop: 2057#L12-2 assume !(main_~i~0#1 <= 0); 2060#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 2059#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2056#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 2057#L12-2 [2022-07-22 01:31:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:26,239 INFO L85 PathProgramCache]: Analyzing trace with hash 178061768, now seen corresponding path program 1 times [2022-07-22 01:31:26,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:26,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867983961] [2022-07-22 01:31:26,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 117 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 01:31:26,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:26,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867983961] [2022-07-22 01:31:26,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867983961] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:31:26,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126470468] [2022-07-22 01:31:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:26,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:31:26,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,281 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-07-22 01:31:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 117 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 01:31:26,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:31:26,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-07-22 01:31:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 117 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 01:31:26,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126470468] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:31:26,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:31:26,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-07-22 01:31:26,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919956937] [2022-07-22 01:31:26,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:31:26,403 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:31:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-07-22 01:31:26,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:26,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786552008] [2022-07-22 01:31:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:26,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:26,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:26,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:26,433 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:26,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:26,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:26,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:26,434 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:26,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:26,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:26,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-07-22 01:31:26,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:26,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:26,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,476 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:26,476 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,477 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:26,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:26,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-22 01:31:26,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:26,503 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:31:26,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:26,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,521 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-22 01:31:26,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:26,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:26,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:26,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,560 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-22 01:31:26,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:26,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:26,646 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:26,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-07-22 01:31:26,649 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:26,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:26,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:26,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:26,649 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:26,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:26,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:26,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-07-22 01:31:26,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:26,650 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:26,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:26,701 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:26,701 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:26,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,703 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-22 01:31:26,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:26,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:26,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:26,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:26,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:26,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:26,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:26,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:26,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-22 01:31:26,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,737 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-22 01:31:26,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:31:26,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:26,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:26,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:26,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:26,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:26,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:26,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:26,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:26,753 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:26,753 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:31:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:26,756 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:31:26,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-22 01:31:26,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:26,757 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:26,758 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:26,758 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:31:26,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2022-07-22 01:31:26,778 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:26,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:26,861 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:26,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 172 states and 193 transitions. Complement of second has 7 states. [2022-07-22 01:31:26,877 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 [2022-07-22 01:31:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:31:26,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 44 letters. Loop has 4 letters. [2022-07-22 01:31:26,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:26,878 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:31:26,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:26,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:26,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:26,971 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:26,971 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:26,992 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 202 states and 225 transitions. Complement of second has 7 states. [2022-07-22 01:31:26,992 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 [2022-07-22 01:31:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-07-22 01:31:26,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 44 letters. Loop has 4 letters. [2022-07-22 01:31:26,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:26,993 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:31:27,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:27,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:27,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:27,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:27,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:27,100 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:31:27,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:27,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 141 states and 158 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 187 states and 211 transitions. Complement of second has 8 states. [2022-07-22 01:31:27,124 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 [2022-07-22 01:31:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-22 01:31:27,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 44 letters. Loop has 4 letters. [2022-07-22 01:31:27,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:27,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 48 letters. Loop has 4 letters. [2022-07-22 01:31:27,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:27,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 44 letters. Loop has 8 letters. [2022-07-22 01:31:27,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:27,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 211 transitions. [2022-07-22 01:31:27,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2022-07-22 01:31:27,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 144 states and 161 transitions. [2022-07-22 01:31:27,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-07-22 01:31:27,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-07-22 01:31:27,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 161 transitions. [2022-07-22 01:31:27,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:27,129 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 161 transitions. [2022-07-22 01:31:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 161 transitions. [2022-07-22 01:31:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 92. [2022-07-22 01:31:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.1195652173913044) internal successors, (103), 91 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2022-07-22 01:31:27,131 INFO L392 hiAutomatonCegarLoop]: Abstraction has 92 states and 103 transitions. [2022-07-22 01:31:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:27,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 01:31:27,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:31:27,132 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:27,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:27,220 INFO L93 Difference]: Finished difference Result 191 states and 208 transitions. [2022-07-22 01:31:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 01:31:27,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 208 transitions. [2022-07-22 01:31:27,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-07-22 01:31:27,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 178 states and 195 transitions. [2022-07-22 01:31:27,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-07-22 01:31:27,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2022-07-22 01:31:27,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 195 transitions. [2022-07-22 01:31:27,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:27,224 INFO L369 hiAutomatonCegarLoop]: Abstraction has 178 states and 195 transitions. [2022-07-22 01:31:27,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 195 transitions. [2022-07-22 01:31:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2022-07-22 01:31:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.1011904761904763) internal successors, (185), 167 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 185 transitions. [2022-07-22 01:31:27,226 INFO L392 hiAutomatonCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-07-22 01:31:27,227 INFO L374 stractBuchiCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-07-22 01:31:27,227 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-22 01:31:27,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 185 transitions. [2022-07-22 01:31:27,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-22 01:31:27,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:27,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:27,229 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1] [2022-07-22 01:31:27,229 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-07-22 01:31:27,229 INFO L752 eck$LassoCheckResult]: Stem: 3741#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3746#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3750#L12 assume !(main_~i~0#1 >= 10); 3756#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3753#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3755#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3862#L12 assume !(main_~i~0#1 >= 10); 3808#L12-2 assume !(main_~i~0#1 <= 0); 3809#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3886#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3885#L12 assume !(main_~i~0#1 >= 10); 3860#L12-2 assume !(main_~i~0#1 <= 0); 3861#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3883#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3881#L12 assume !(main_~i~0#1 >= 10); 3879#L12-2 assume !(main_~i~0#1 <= 0); 3854#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3853#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3851#L12 assume !(main_~i~0#1 >= 10); 3852#L12-2 assume !(main_~i~0#1 <= 0); 3848#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3737#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3738#L12 assume !(main_~i~0#1 >= 10); 3866#L12-2 assume !(main_~i~0#1 <= 0); 3865#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3863#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3801#L12 [2022-07-22 01:31:27,229 INFO L754 eck$LassoCheckResult]: Loop: 3801#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 3800#L12-2 assume !(main_~i~0#1 <= 0); 3745#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3739#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3740#L12 assume !(main_~i~0#1 >= 10); 3735#L12-2 assume !(main_~i~0#1 <= 0); 3736#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3845#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3844#L12 assume !(main_~i~0#1 >= 10); 3843#L12-2 assume !(main_~i~0#1 <= 0); 3842#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3841#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3840#L12 assume !(main_~i~0#1 >= 10); 3839#L12-2 assume !(main_~i~0#1 <= 0); 3838#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3837#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3836#L12 assume !(main_~i~0#1 >= 10); 3835#L12-2 assume !(main_~i~0#1 <= 0); 3834#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3833#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3832#L12 assume !(main_~i~0#1 >= 10); 3831#L12-2 assume !(main_~i~0#1 <= 0); 3830#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3829#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3828#L12 assume !(main_~i~0#1 >= 10); 3827#L12-2 assume !(main_~i~0#1 <= 0); 3826#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3825#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3824#L12 assume !(main_~i~0#1 >= 10); 3823#L12-2 assume !(main_~i~0#1 <= 0); 3822#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3821#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3820#L12 assume !(main_~i~0#1 >= 10); 3819#L12-2 assume !(main_~i~0#1 <= 0); 3818#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3817#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3816#L12 assume !(main_~i~0#1 >= 10); 3811#L12-2 assume !(main_~i~0#1 <= 0); 3815#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3813#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3810#L12 assume !(main_~i~0#1 >= 10); 3805#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3806#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3814#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3812#L12 assume !(main_~i~0#1 >= 10); 3807#L12-2 assume !(main_~i~0#1 <= 0); 3803#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3804#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3846#L12 assume !(main_~i~0#1 >= 10); 3847#L12-2 assume !(main_~i~0#1 <= 0); 3859#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3858#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3857#L12 assume !(main_~i~0#1 >= 10); 3855#L12-2 assume !(main_~i~0#1 <= 0); 3856#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3875#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3873#L12 assume !(main_~i~0#1 >= 10); 3849#L12-2 assume !(main_~i~0#1 <= 0); 3850#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3869#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3747#L12 assume !(main_~i~0#1 >= 10); 3748#L12-2 assume !(main_~i~0#1 <= 0); 3900#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3888#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3887#L12 assume !(main_~i~0#1 >= 10); 3733#L12-2 assume !(main_~i~0#1 <= 0); 3734#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3752#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3899#L12 assume !(main_~i~0#1 >= 10); 3898#L12-2 assume !(main_~i~0#1 <= 0); 3897#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3896#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3895#L12 assume !(main_~i~0#1 >= 10); 3894#L12-2 assume !(main_~i~0#1 <= 0); 3893#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3892#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3891#L12 assume !(main_~i~0#1 >= 10); 3890#L12-2 assume !(main_~i~0#1 <= 0); 3889#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3802#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3801#L12 [2022-07-22 01:31:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:27,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1514411024, now seen corresponding path program 1 times [2022-07-22 01:31:27,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:27,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268852320] [2022-07-22 01:31:27,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:27,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:27,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:27,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:27,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:27,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 1 times [2022-07-22 01:31:27,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:27,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078338015] [2022-07-22 01:31:27,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:27,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:27,256 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:27,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -883489176, now seen corresponding path program 2 times [2022-07-22 01:31:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462070629] [2022-07-22 01:31:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:27,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-22 01:31:27,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:31:27,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462070629] [2022-07-22 01:31:27,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462070629] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:31:27,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133496910] [2022-07-22 01:31:27,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:31:27,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:31:27,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:27,338 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:31:27,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2022-07-22 01:31:27,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:31:27,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:31:27,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 01:31:27,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-22 01:31:27,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:31:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-22 01:31:27,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133496910] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:31:27,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:31:27,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-22 01:31:27,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440919603] [2022-07-22 01:31:27,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:31:27,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:31:27,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 01:31:27,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:31:27,943 INFO L87 Difference]: Start difference. First operand 168 states and 185 transitions. cyclomatic complexity: 21 Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:31:28,025 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-07-22 01:31:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 01:31:28,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 229 transitions. [2022-07-22 01:31:28,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-22 01:31:28,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 208 states and 223 transitions. [2022-07-22 01:31:28,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-07-22 01:31:28,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2022-07-22 01:31:28,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 223 transitions. [2022-07-22 01:31:28,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:28,029 INFO L369 hiAutomatonCegarLoop]: Abstraction has 208 states and 223 transitions. [2022-07-22 01:31:28,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 223 transitions. [2022-07-22 01:31:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 167. [2022-07-22 01:31:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.089820359281437) internal successors, (182), 166 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:31:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2022-07-22 01:31:28,033 INFO L392 hiAutomatonCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-07-22 01:31:28,033 INFO L374 stractBuchiCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-07-22 01:31:28,033 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-22 01:31:28,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 182 transitions. [2022-07-22 01:31:28,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-22 01:31:28,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:28,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:28,037 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-22 01:31:28,037 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-07-22 01:31:28,038 INFO L752 eck$LassoCheckResult]: Stem: 4776#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4777#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4779#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4791#L12 assume !(main_~i~0#1 >= 10); 4788#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4784#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4786#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4831#L12 assume !(main_~i~0#1 >= 10); 4828#L12-2 assume !(main_~i~0#1 <= 0); 4827#L15-1 [2022-07-22 01:31:28,039 INFO L754 eck$LassoCheckResult]: Loop: 4827#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4826#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4825#L12 assume !(main_~i~0#1 >= 10); 4824#L12-2 assume !(main_~i~0#1 <= 0); 4823#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4822#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4821#L12 assume !(main_~i~0#1 >= 10); 4820#L12-2 assume !(main_~i~0#1 <= 0); 4819#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4818#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4817#L12 assume !(main_~i~0#1 >= 10); 4816#L12-2 assume !(main_~i~0#1 <= 0); 4815#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4814#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4813#L12 assume !(main_~i~0#1 >= 10); 4812#L12-2 assume !(main_~i~0#1 <= 0); 4811#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4810#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4809#L12 assume !(main_~i~0#1 >= 10); 4808#L12-2 assume !(main_~i~0#1 <= 0); 4807#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4806#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4805#L12 assume !(main_~i~0#1 >= 10); 4804#L12-2 assume !(main_~i~0#1 <= 0); 4803#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4802#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4801#L12 assume !(main_~i~0#1 >= 10); 4800#L12-2 assume !(main_~i~0#1 <= 0); 4799#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4798#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4797#L12 assume !(main_~i~0#1 >= 10); 4796#L12-2 assume !(main_~i~0#1 <= 0); 4795#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4794#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4793#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 4790#L12-2 assume !(main_~i~0#1 <= 0); 4771#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4774#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4775#L12 assume !(main_~i~0#1 >= 10); 4870#L12-2 assume !(main_~i~0#1 <= 0); 4869#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4868#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4867#L12 assume !(main_~i~0#1 >= 10); 4866#L12-2 assume !(main_~i~0#1 <= 0); 4865#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4864#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4863#L12 assume !(main_~i~0#1 >= 10); 4862#L12-2 assume !(main_~i~0#1 <= 0); 4861#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4860#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4859#L12 assume !(main_~i~0#1 >= 10); 4858#L12-2 assume !(main_~i~0#1 <= 0); 4857#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4856#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4855#L12 assume !(main_~i~0#1 >= 10); 4854#L12-2 assume !(main_~i~0#1 <= 0); 4853#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4852#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4851#L12 assume !(main_~i~0#1 >= 10); 4850#L12-2 assume !(main_~i~0#1 <= 0); 4849#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4848#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4847#L12 assume !(main_~i~0#1 >= 10); 4846#L12-2 assume !(main_~i~0#1 <= 0); 4845#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4844#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4843#L12 assume !(main_~i~0#1 >= 10); 4842#L12-2 assume !(main_~i~0#1 <= 0); 4841#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4840#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4839#L12 assume !(main_~i~0#1 >= 10); 4838#L12-2 assume !(main_~i~0#1 <= 0); 4837#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4836#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4835#L12 assume !(main_~i~0#1 >= 10); 4834#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4832#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4833#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4829#L12 assume !(main_~i~0#1 >= 10); 4830#L12-2 assume !(main_~i~0#1 <= 0); 4827#L15-1 [2022-07-22 01:31:28,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:28,039 INFO L85 PathProgramCache]: Analyzing trace with hash 644068259, now seen corresponding path program 2 times [2022-07-22 01:31:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:28,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219336625] [2022-07-22 01:31:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:28,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:28,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1888138361, now seen corresponding path program 2 times [2022-07-22 01:31:28,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:28,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085867318] [2022-07-22 01:31:28,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:28,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,079 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1126640613, now seen corresponding path program 3 times [2022-07-22 01:31:28,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:28,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192630568] [2022-07-22 01:31:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:28,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:28,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:31:28 BoogieIcfgContainer [2022-07-22 01:31:28,645 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:31:28,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:31:28,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:31:28,646 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:31:28,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:21" (3/4) ... [2022-07-22 01:31:28,649 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 01:31:28,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 01:31:28,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:31:28,683 INFO L158 Benchmark]: Toolchain (without parser) took 7480.81ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 37.8MB in the beginning and 56.0MB in the end (delta: -18.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,683 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:28,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.71ms. Allocated memory is still 54.5MB. Free memory was 37.4MB in the beginning and 39.0MB in the end (delta: -1.6MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.27ms. Allocated memory is still 54.5MB. Free memory was 39.0MB in the beginning and 37.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,684 INFO L158 Benchmark]: Boogie Preprocessor took 12.33ms. Allocated memory is still 54.5MB. Free memory was 37.7MB in the beginning and 36.8MB in the end (delta: 881.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:28,684 INFO L158 Benchmark]: RCFGBuilder took 178.44ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 28.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,685 INFO L158 Benchmark]: BuchiAutomizer took 7060.70ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 28.6MB in the beginning and 59.3MB in the end (delta: -30.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,685 INFO L158 Benchmark]: Witness Printer took 36.63ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 56.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 01:31:28,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 146.71ms. Allocated memory is still 54.5MB. Free memory was 37.4MB in the beginning and 39.0MB in the end (delta: -1.6MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.27ms. Allocated memory is still 54.5MB. Free memory was 39.0MB in the beginning and 37.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.33ms. Allocated memory is still 54.5MB. Free memory was 37.7MB in the beginning and 36.8MB in the end (delta: 881.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 178.44ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 28.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7060.70ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 28.6MB in the beginning and 59.3MB in the end (delta: -30.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Witness Printer took 36.63ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 56.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. 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 14 terminating modules (7 trivial, 6 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 167 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.0s and 11 iterations. TraceHistogramMax:20. Analysis of lassos took 5.3s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 14. Automata minimization 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 232 StatesRemovedByMinimization, 14 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 [6, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 127 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc1 concLT1 SILN0 SILU0 SILI2 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf110 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24a35b8=0, up=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) Loop: [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 01:31:28,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:28,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2022-07-22 01:31:29,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2022-07-22 01:31:29,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-07-22 01:31:29,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)