./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash fef737e6ce8f4d154b70d44967f8d8c87159a2fe .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:22:24,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:22:24,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:22:24,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:22:24,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:22:24,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:22:24,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:22:24,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:22:24,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:22:24,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:22:24,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:22:24,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:22:24,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:22:24,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:22:24,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:22:24,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:22:24,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:22:24,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:22:24,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:22:24,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:22:24,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:22:24,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:22:24,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:22:24,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:22:24,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:22:24,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:22:24,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:22:24,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:22:24,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:22:24,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:22:24,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:22:24,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:22:24,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:22:24,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:22:24,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:22:24,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:22:24,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:22:24,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:22:24,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:22:24,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:22:24,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:22:24,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:22:24,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:22:24,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:22:24,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:22:24,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:22:24,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:22:24,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:22:24,505 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:22:24,505 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:22:24,505 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:22:24,505 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:22:24,505 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:22:24,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:22:24,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:22:24,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:22:24,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:22:24,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:22:24,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:22:24,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:22:24,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:22:24,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:22:24,509 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:22:24,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef737e6ce8f4d154b70d44967f8d8c87159a2fe [2021-08-27 15:22:24,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:22:24,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:22:24,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:22:24,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:22:24,766 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:22:24,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-08-27 15:22:24,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780c10832/282f40b20efd4f478d3283cc8d903761/FLAGdbc2d5e25 [2021-08-27 15:22:25,194 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:22:25,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-08-27 15:22:25,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780c10832/282f40b20efd4f478d3283cc8d903761/FLAGdbc2d5e25 [2021-08-27 15:22:25,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780c10832/282f40b20efd4f478d3283cc8d903761 [2021-08-27 15:22:25,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:22:25,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:22:25,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:22:25,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:22:25,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:22:25,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d76f0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25, skipping insertion in model container [2021-08-27 15:22:25,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:22:25,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:22:25,357 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-08-27 15:22:25,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:22:25,374 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:22:25,383 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-08-27 15:22:25,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:22:25,400 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:22:25,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25 WrapperNode [2021-08-27 15:22:25,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:22:25,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:22:25,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:22:25,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:22:25,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:22:25,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:22:25,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:22:25,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:22:25,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:22:25,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:22:25,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:22:25,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:22:25,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (1/1) ... [2021-08-27 15:22:25,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:25,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:25,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:25,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:22:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:22:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:22:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:22:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:22:25,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:22:25,705 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-27 15:22:25,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:25 BoogieIcfgContainer [2021-08-27 15:22:25,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:22:25,706 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:22:25,706 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:22:25,708 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:22:25,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:25,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:22:25" (1/3) ... [2021-08-27 15:22:25,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abfd05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:22:25, skipping insertion in model container [2021-08-27 15:22:25,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:25,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:25" (2/3) ... [2021-08-27 15:22:25,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abfd05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:22:25, skipping insertion in model container [2021-08-27 15:22:25,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:25,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:25" (3/3) ... [2021-08-27 15:22:25,711 INFO L389 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2021-08-27 15:22:25,758 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:22:25,758 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:22:25,758 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:22:25,759 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:22:25,759 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:22:25,759 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:22:25,759 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:22:25,759 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:22:25,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:25,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 15:22:25,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:25,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:25,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:22:25,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 15:22:25,788 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:22:25,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:25,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 15:22:25,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:25,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:25,791 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:22:25,791 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 15:22:25,796 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 5#L-1true havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 6#L35-3true [2021-08-27 15:22:25,796 INFO L793 eck$LassoCheckResult]: Loop: 6#L35-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 11#L31-2true assume !(main_~j~0 < 20); 7#L31-3true main_~k~0 := 4; 10#L35-2true assume !true; 6#L35-3true [2021-08-27 15:22:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:25,802 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:22:25,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:25,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459044475] [2021-08-27 15:22:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:25,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:25,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:25,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:25,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:25,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2021-08-27 15:22:25,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:25,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597949867] [2021-08-27 15:22:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:25,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:25,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:22:25,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597949867] [2021-08-27 15:22:25,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597949867] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:22:25,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:22:25,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 15:22:25,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493770148] [2021-08-27 15:22:25,957 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:22:25,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:22:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 15:22:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 15:22:25,974 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:25,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:22:25,977 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-08-27 15:22:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:22:25,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-08-27 15:22:25,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 15:22:25,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 6 states and 8 transitions. [2021-08-27 15:22:25,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 15:22:25,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-08-27 15:22:25,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-08-27 15:22:25,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:22:25,983 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-27 15:22:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-08-27 15:22:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-08-27 15:22:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-08-27 15:22:25,999 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-27 15:22:26,000 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-27 15:22:26,000 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:22:26,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-08-27 15:22:26,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 15:22:26,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:26,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:26,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:22:26,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 15:22:26,002 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 35#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 37#L35-3 [2021-08-27 15:22:26,002 INFO L793 eck$LassoCheckResult]: Loop: 37#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 38#L31-2 assume !(main_~j~0 < 20); 39#L31-3 main_~k~0 := 4; 36#L35-2 assume !(main_~k~0 <= 3); 37#L35-3 [2021-08-27 15:22:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,004 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-08-27 15:22:26,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27502156] [2021-08-27 15:22:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,021 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:26,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2021-08-27 15:22:26,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19714494] [2021-08-27 15:22:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,060 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,060 INFO L82 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2021-08-27 15:22:26,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533640206] [2021-08-27 15:22:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:26,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:22:26,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533640206] [2021-08-27 15:22:26,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533640206] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:22:26,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:22:26,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:22:26,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117554445] [2021-08-27 15:22:26,172 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:26,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:26,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:26,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:26,173 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:22:26,173 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,173 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:26,173 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:26,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-08-27 15:22:26,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:26,174 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:26,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:26,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:22:26,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:22:26,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:22:26,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:26,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 15:22:26,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 15:22:26,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:26,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:22:26,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:22:26,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:26,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:26,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:22:26,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:22:26,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:26,401 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:22:26,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:26,410 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:26,410 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:26,410 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:26,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:26,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:22:26,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:26,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:26,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-08-27 15:22:26,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:26,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:26,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:26,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:26,499 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:22:26,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:22:26,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:26,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:26,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:26,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:26,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:26,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:26,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:26,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:26,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:26,551 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 [2021-08-27 15:22:26,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:22:26,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:26,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:26,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:26,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:26,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:26,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:26,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:26,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:26,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:22:26,584 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:22:26,584 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:22:26,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:26,586 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:26,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 15:22:26,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:22:26,588 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:22:26,588 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:22:26,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2021-08-27 15:22:26,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-08-27 15:22:26,608 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:22:26,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:26,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:26,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:26,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:26,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:26,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:26,768 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:22:26,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:26,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 4 states. [2021-08-27 15:22:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:26,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-08-27 15:22:26,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-27 15:22:26,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:26,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 15:22:26,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:26,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-08-27 15:22:26,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:26,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2021-08-27 15:22:26,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-08-27 15:22:26,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2021-08-27 15:22:26,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 15:22:26,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 15:22:26,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2021-08-27 15:22:26,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:22:26,802 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2021-08-27 15:22:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2021-08-27 15:22:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-08-27 15:22:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2021-08-27 15:22:26,804 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2021-08-27 15:22:26,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:22:26,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:22:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:22:26,805 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:26,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:22:26,809 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2021-08-27 15:22:26,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:22:26,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2021-08-27 15:22:26,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-08-27 15:22:26,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2021-08-27 15:22:26,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 15:22:26,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-08-27 15:22:26,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2021-08-27 15:22:26,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:22:26,811 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-08-27 15:22:26,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2021-08-27 15:22:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-08-27 15:22:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2021-08-27 15:22:26,813 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-08-27 15:22:26,813 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-08-27 15:22:26,813 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 15:22:26,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2021-08-27 15:22:26,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-08-27 15:22:26,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:26,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:26,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 15:22:26,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:22:26,814 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 117#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 125#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 126#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-08-27 15:22:26,815 INFO L793 eck$LassoCheckResult]: Loop: 121#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-08-27 15:22:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-08-27 15:22:26,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870468650] [2021-08-27 15:22:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,822 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,829 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:26,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,830 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-08-27 15:22:26,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509231874] [2021-08-27 15:22:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:26,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:26,838 INFO L82 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2021-08-27 15:22:26,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:26,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082019912] [2021-08-27 15:22:26,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:26,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,845 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:26,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:27,200 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:27,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:27,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:27,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:27,201 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:22:27,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:27,201 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:27,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2021-08-27 15:22:27,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:27,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:27,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:27,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:27,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:22:27,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 15:22:27,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,430 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,465 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 15:22:27,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 15:22:27,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,549 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 [2021-08-27 15:22:27,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,551 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 15:22:27,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,593 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 15:22:27,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,640 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 [2021-08-27 15:22:27,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,641 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 15:22:27,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,692 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 15:22:27,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,735 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 15:22:27,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,780 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 15:22:27,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,844 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 15:22:27,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:27,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:27,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:27,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,879 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 15:22:27,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,929 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 15:22:27,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:27,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:27,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:27,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:27,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:27,982 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:27,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 15:22:27,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:27,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:27,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:27,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:27,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:27,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:27,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:28,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:22:28,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-08-27 15:22:28,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,035 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 15:22:28,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:28,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:28,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:28,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:28,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:28,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:22:28,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:22:28,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:22:28,082 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-08-27 15:22:28,083 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-08-27 15:22:28,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,084 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:22:28,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 15:22:28,098 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 15:22:28,098 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:22:28,099 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2021-08-27 15:22:28,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-08-27 15:22:28,130 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-08-27 15:22:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,209 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:28,210 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2021-08-27 15:22:28,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 34 transitions. Complement of second has 6 states. [2021-08-27 15:22:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-08-27 15:22:28,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 15:22:28,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 15:22:28,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 15:22:28,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2021-08-27 15:22:28,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:22:28,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2021-08-27 15:22:28,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 15:22:28,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 15:22:28,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2021-08-27 15:22:28,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:22:28,238 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2021-08-27 15:22:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2021-08-27 15:22:28,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-08-27 15:22:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2021-08-27 15:22:28,239 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-08-27 15:22:28,239 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-08-27 15:22:28,239 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 15:22:28,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2021-08-27 15:22:28,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:22:28,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:28,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:28,240 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:22:28,240 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:22:28,241 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 214#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 224#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 225#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 218#L31-2 assume !(main_~j~0 < 20); 219#L31-3 main_~k~0 := 4; 215#L35-2 [2021-08-27 15:22:28,241 INFO L793 eck$LassoCheckResult]: Loop: 215#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 215#L35-2 [2021-08-27 15:22:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,241 INFO L82 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-08-27 15:22:28,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:28,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546307216] [2021-08-27 15:22:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:28,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:22:28,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546307216] [2021-08-27 15:22:28,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546307216] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:22:28,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895332518] [2021-08-27 15:22:28,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:22:28,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,284 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-27 15:22:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,429 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 [2021-08-27 15:22:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:28,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895332518] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:22:28,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:22:28,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-27 15:22:28,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334042528] [2021-08-27 15:22:28,448 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:22:28,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,449 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2021-08-27 15:22:28,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:28,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090875237] [2021-08-27 15:22:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:28,455 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:28,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:28,470 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:28,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:28,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:28,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:28,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:22:28,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:28,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:28,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-08-27 15:22:28,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:28,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:28,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:28,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:28,489 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:22:28,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,500 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 15:22:28,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:22:28,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:28,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-08-27 15:22:28,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,537 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 15:22:28,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:22:28,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:28,570 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:22:28,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-08-27 15:22:28,572 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:28,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:28,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:28,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:28,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:22:28,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:28,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:28,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-08-27 15:22:28,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:28,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:28,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:28,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:28,591 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:22:28,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,592 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 15:22:28,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:28,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:28,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:28,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:28,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:28,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:28,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:28,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:28,608 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:22:28,610 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:22:28,610 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:22:28,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,611 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 15:22:28,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:22:28,613 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:22:28,613 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:22:28,613 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-08-27 15:22:28,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:28,628 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:22:28,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,682 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:28,683 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 15:22:28,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,700 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 48 states and 76 transitions. Complement of second has 5 states. [2021-08-27 15:22:28,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-08-27 15:22:28,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2021-08-27 15:22:28,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2021-08-27 15:22:28,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-08-27 15:22:28,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:28,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2021-08-27 15:22:28,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:22:28,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2021-08-27 15:22:28,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-08-27 15:22:28,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 15:22:28,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2021-08-27 15:22:28,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:22:28,706 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2021-08-27 15:22:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2021-08-27 15:22:28,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2021-08-27 15:22:28,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-08-27 15:22:28,708 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-08-27 15:22:28,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:22:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 15:22:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-27 15:22:28,708 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:22:28,720 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2021-08-27 15:22:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 15:22:28,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2021-08-27 15:22:28,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:22:28,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2021-08-27 15:22:28,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 15:22:28,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-08-27 15:22:28,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2021-08-27 15:22:28,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:22:28,723 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-08-27 15:22:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2021-08-27 15:22:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-27 15:22:28,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-08-27 15:22:28,724 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-08-27 15:22:28,725 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-08-27 15:22:28,725 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 15:22:28,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-08-27 15:22:28,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:22:28,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:28,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:28,725 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-08-27 15:22:28,725 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:22:28,726 INFO L791 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 373#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 377#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 381#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 382#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 387#L31-2 assume !(main_~j~0 < 20); 384#L31-3 main_~k~0 := 4; 375#L35-2 assume !(main_~k~0 <= 3); 376#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 383#L31-2 assume !(main_~j~0 < 20); 379#L31-3 main_~k~0 := 4; 374#L35-2 [2021-08-27 15:22:28,726 INFO L793 eck$LassoCheckResult]: Loop: 374#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 374#L35-2 [2021-08-27 15:22:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1360977536, now seen corresponding path program 1 times [2021-08-27 15:22:28,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:28,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22141576] [2021-08-27 15:22:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 15:22:28,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:22:28,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22141576] [2021-08-27 15:22:28,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22141576] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:22:28,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387489218] [2021-08-27 15:22:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:22:28,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,768 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-27 15:22:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:28,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 15:22:28,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:28,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 15:22:28,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387489218] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:22:28,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:22:28,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-27 15:22:28,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94354729] [2021-08-27 15:22:28,914 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:22:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:28,915 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2021-08-27 15:22:28,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:28,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896487424] [2021-08-27 15:22:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:28,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:28,917 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:28,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:28,928 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:28,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:28,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:28,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:28,929 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:22:28,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:28,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:28,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-08-27 15:22:28,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:28,929 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:28,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:28,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:28,942 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:22:28,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,945 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:22:28,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:22:28,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:28,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 15:22:28,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:28,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:28,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:28,985 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) [2021-08-27 15:22:28,986 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 [2021-08-27 15:22:28,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:22:28,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:29,017 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:22:29,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:29,027 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:29,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:29,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:29,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:29,027 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:22:29,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:29,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:29,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:29,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-08-27 15:22:29,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:29,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:29,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:29,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:29,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:22:29,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:29,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:29,043 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) [2021-08-27 15:22:29,044 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 [2021-08-27 15:22:29,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:29,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:29,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:29,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:29,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:29,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:29,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:29,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:29,064 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:22:29,066 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:22:29,066 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:22:29,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:29,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:29,068 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) [2021-08-27 15:22:29,068 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 [2021-08-27 15:22:29,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:22:29,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:22:29,069 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:22:29,069 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-08-27 15:22:29,087 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 [2021-08-27 15:22:29,088 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:22:29,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,158 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:29,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:29,159 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 15:22:29,159 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,166 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 44 states and 69 transitions. Complement of second has 5 states. [2021-08-27 15:22:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-08-27 15:22:29,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-08-27 15:22:29,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:29,167 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:22:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,216 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:29,217 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 15:22:29,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,226 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 44 states and 69 transitions. Complement of second has 5 states. [2021-08-27 15:22:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-08-27 15:22:29,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-08-27 15:22:29,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:29,228 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:22:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:29,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:29,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:29,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:29,275 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 1 loop predicates [2021-08-27 15:22:29,275 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 33 states and 49 transitions. Complement of second has 4 states. [2021-08-27 15:22:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:29,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:22:29,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-08-27 15:22:29,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2021-08-27 15:22:29,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:29,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2021-08-27 15:22:29,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:29,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-08-27 15:22:29,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:29,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-08-27 15:22:29,286 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:22:29,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-08-27 15:22:29,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:22:29,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:22:29,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:22:29,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:22:29,286 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:29,286 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:22:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 15:22:29,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-08-27 15:22:29,287 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 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) [2021-08-27 15:22:29,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:22:29,287 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 15:22:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:22:29,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 15:22:29,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:22:29,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:22:29,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:22:29,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:22:29,288 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 15:22:29,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:22:29,288 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:22:29,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:22:29,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:22:29 BoogieIcfgContainer [2021-08-27 15:22:29,293 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:22:29,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:22:29,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:22:29,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:22:29,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:25" (3/4) ... [2021-08-27 15:22:29,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:22:29,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:22:29,296 INFO L168 Benchmark]: Toolchain (without parser) took 4080.35 ms. Allocated memory was 52.4 MB in the beginning and 111.1 MB in the end (delta: 58.7 MB). Free memory was 29.6 MB in the beginning and 55.2 MB in the end (delta: -25.7 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:29,296 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:29,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.78 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 33.7 MB in the end (delta: -4.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:29,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.13 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 32.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:29,297 INFO L168 Benchmark]: Boogie Preprocessor took 25.56 ms. Allocated memory is still 52.4 MB. Free memory was 32.3 MB in the beginning and 31.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:29,297 INFO L168 Benchmark]: RCFGBuilder took 256.48 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.2 MB in the beginning and 41.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:29,298 INFO L168 Benchmark]: BuchiAutomizer took 3586.24 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 41.7 MB in the beginning and 55.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:29,298 INFO L168 Benchmark]: Witness Printer took 2.36 ms. Allocated memory is still 111.1 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:29,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 183.78 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 33.7 MB in the end (delta: -4.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.13 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 32.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.56 ms. Allocated memory is still 52.4 MB. Free memory was 32.3 MB in the beginning and 31.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 256.48 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.2 MB in the beginning and 41.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3586.24 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 41.7 MB in the beginning and 55.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * Witness Printer took 2.36 ms. Allocated memory is still 111.1 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function 39 + -2 * j and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. One nondeterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 13.5ms AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 52 SDslu, 32 SDs, 0 SdLazy, 43 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp85 ukn92 mio100 lsp93 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:22:29,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:29,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-08-27 15:22:29,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...