./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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/array-memsafety/openbsd_cstrspn-alloca-2.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 46421108dc6473f7bf7bcbb7826a3247c1ccc8d1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 05:20:44,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 05:20:44,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 05:20:44,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 05:20:44,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 05:20:44,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 05:20:44,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 05:20:44,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 05:20:44,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 05:20:44,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 05:20:44,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 05:20:44,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 05:20:44,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 05:20:44,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 05:20:44,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 05:20:44,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 05:20:44,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 05:20:44,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 05:20:44,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 05:20:44,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 05:20:44,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 05:20:44,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 05:20:44,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 05:20:44,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 05:20:44,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 05:20:44,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 05:20:44,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 05:20:44,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 05:20:44,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 05:20:44,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 05:20:44,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 05:20:44,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 05:20:44,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 05:20:44,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 05:20:44,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 05:20:44,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 05:20:44,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 05:20:44,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 05:20:44,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 05:20:44,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 05:20:44,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 05:20:44,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 05:20:44,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 05:20:44,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 05:20:44,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 05:20:44,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 05:20:44,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 05:20:44,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 05:20:44,403 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 05:20:44,403 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 05:20:44,403 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 05:20:44,404 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 05:20:44,404 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 05:20:44,405 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 05:20:44,405 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 05:20:44,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 05:20:44,405 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 05:20:44,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 05:20:44,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 05:20:44,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 05:20:44,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 05:20:44,407 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 05:20:44,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 05:20:44,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 05:20:44,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 05:20:44,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 05:20:44,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 05:20:44,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 05:20:44,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 05:20:44,410 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 05:20:44,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46421108dc6473f7bf7bcbb7826a3247c1ccc8d1 [2021-08-31 05:20:44,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 05:20:44,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 05:20:44,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 05:20:44,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 05:20:44,732 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 05:20:44,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2021-08-31 05:20:44,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da55543a6/d2d2e3142a1847ae9ae4f788be3bf99f/FLAGdbd840458 [2021-08-31 05:20:45,330 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 05:20:45,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2021-08-31 05:20:45,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da55543a6/d2d2e3142a1847ae9ae4f788be3bf99f/FLAGdbd840458 [2021-08-31 05:20:45,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da55543a6/d2d2e3142a1847ae9ae4f788be3bf99f [2021-08-31 05:20:45,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 05:20:45,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 05:20:45,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 05:20:45,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 05:20:45,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 05:20:45,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:20:45" (1/1) ... [2021-08-31 05:20:45,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b1b33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:45, skipping insertion in model container [2021-08-31 05:20:45,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:20:45" (1/1) ... [2021-08-31 05:20:45,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 05:20:45,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 05:20:45,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 05:20:45,970 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 05:20:46,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 05:20:46,067 INFO L208 MainTranslator]: Completed translation [2021-08-31 05:20:46,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46 WrapperNode [2021-08-31 05:20:46,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 05:20:46,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 05:20:46,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 05:20:46,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 05:20:46,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 05:20:46,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 05:20:46,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 05:20:46,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 05:20:46,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 05:20:46,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 05:20:46,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 05:20:46,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 05:20:46,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (1/1) ... [2021-08-31 05:20:46,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:46,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:46,166 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) [2021-08-31 05:20:46,184 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 [2021-08-31 05:20:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-31 05:20:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-31 05:20:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 05:20:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-31 05:20:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 05:20:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 05:20:46,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 05:20:46,440 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-31 05:20:46,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:20:46 BoogieIcfgContainer [2021-08-31 05:20:46,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 05:20:46,443 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 05:20:46,443 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 05:20:46,446 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 05:20:46,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 05:20:46,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 05:20:45" (1/3) ... [2021-08-31 05:20:46,461 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b3b466d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 05:20:46, skipping insertion in model container [2021-08-31 05:20:46,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 05:20:46,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:20:46" (2/3) ... [2021-08-31 05:20:46,462 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b3b466d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 05:20:46, skipping insertion in model container [2021-08-31 05:20:46,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 05:20:46,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:20:46" (3/3) ... [2021-08-31 05:20:46,464 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrspn-alloca-2.i [2021-08-31 05:20:46,520 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 05:20:46,521 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 05:20:46,521 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 05:20:46,521 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 05:20:46,521 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 05:20:46,521 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 05:20:46,521 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 05:20:46,522 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 05:20:46,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:46,559 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-08-31 05:20:46,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:46,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:46,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-31 05:20:46,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 05:20:46,564 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 05:20:46,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:46,567 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-08-31 05:20:46,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:46,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:46,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-31 05:20:46,568 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 05:20:46,574 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 14#L528true assume !(main_~length1~0 < 1); 9#L528-2true assume !(main_~length2~0 < 1); 15#L531-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 8#L537-3true [2021-08-31 05:20:46,575 INFO L793 eck$LassoCheckResult]: Loop: 8#L537-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 17#L537-2true main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 8#L537-3true [2021-08-31 05:20:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:46,579 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-08-31 05:20:46,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:46,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230385318] [2021-08-31 05:20:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:46,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,687 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:46,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-08-31 05:20:46,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:46,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965103512] [2021-08-31 05:20:46,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:46,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,764 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:46,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:46,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-08-31 05:20:46,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:46,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205362028] [2021-08-31 05:20:46,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:46,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,814 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:46,856 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:47,342 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:20:47,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:20:47,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:20:47,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:20:47,344 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:20:47,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:47,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:20:47,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:20:47,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration1_Lasso [2021-08-31 05:20:47,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:20:47,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:20:47,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:47,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:20:47,822 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:20:47,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:47,825 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) [2021-08-31 05:20:47,829 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 [2021-08-31 05:20:47,830 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 [2021-08-31 05:20:47,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:47,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:47,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:47,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:47,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:47,845 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:47,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:47,885 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 [2021-08-31 05:20:47,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:47,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:47,888 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) [2021-08-31 05:20:47,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 05:20:47,900 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 [2021-08-31 05:20:47,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:47,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:47,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:47,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:47,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:47,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:47,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:47,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:47,949 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 [2021-08-31 05:20:47,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:47,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:47,951 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) [2021-08-31 05:20:47,956 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 [2021-08-31 05:20:47,957 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 [2021-08-31 05:20:47,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:47,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:47,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:47,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:47,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:47,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:47,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:47,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:47,995 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 [2021-08-31 05:20:47,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:47,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:47,997 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) [2021-08-31 05:20:48,002 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 [2021-08-31 05:20:48,031 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 [2021-08-31 05:20:48,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-08-31 05:20:48,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,064 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) [2021-08-31 05:20:48,065 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 [2021-08-31 05:20:48,066 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 [2021-08-31 05:20:48,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:48,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,093 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) [2021-08-31 05:20:48,094 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 [2021-08-31 05:20:48,097 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 [2021-08-31 05:20:48,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,135 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 [2021-08-31 05:20:48,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,136 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) [2021-08-31 05:20:48,138 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 [2021-08-31 05:20:48,139 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 [2021-08-31 05:20:48,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,198 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 [2021-08-31 05:20:48,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,200 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) [2021-08-31 05:20:48,203 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 [2021-08-31 05:20:48,204 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 [2021-08-31 05:20:48,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,262 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 [2021-08-31 05:20:48,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,263 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) [2021-08-31 05:20:48,264 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 [2021-08-31 05:20:48,266 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 [2021-08-31 05:20:48,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:48,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,323 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) [2021-08-31 05:20:48,326 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 [2021-08-31 05:20:48,326 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 [2021-08-31 05:20:48,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-08-31 05:20:48,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,353 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) [2021-08-31 05:20:48,353 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 [2021-08-31 05:20:48,355 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 [2021-08-31 05:20:48,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,385 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 [2021-08-31 05:20:48,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,387 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) [2021-08-31 05:20:48,392 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 [2021-08-31 05:20:48,392 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 [2021-08-31 05:20:48,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-08-31 05:20:48,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,422 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) [2021-08-31 05:20:48,423 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 [2021-08-31 05:20:48,424 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 [2021-08-31 05:20:48,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,454 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 [2021-08-31 05:20:48,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,456 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) [2021-08-31 05:20:48,457 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 [2021-08-31 05:20:48,460 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 [2021-08-31 05:20:48,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:48,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:48,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:48,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,488 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 [2021-08-31 05:20:48,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,489 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) [2021-08-31 05:20:48,490 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 [2021-08-31 05:20:48,493 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 [2021-08-31 05:20:48,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,565 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 [2021-08-31 05:20:48,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,566 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) [2021-08-31 05:20:48,568 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 [2021-08-31 05:20:48,569 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 [2021-08-31 05:20:48,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,627 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 [2021-08-31 05:20:48,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,629 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) [2021-08-31 05:20:48,640 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 [2021-08-31 05:20:48,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,653 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 [2021-08-31 05:20:48,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,688 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 [2021-08-31 05:20:48,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,690 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) [2021-08-31 05:20:48,691 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 [2021-08-31 05:20:48,692 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 [2021-08-31 05:20:48,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:48,734 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 [2021-08-31 05:20:48,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,735 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) [2021-08-31 05:20:48,736 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 [2021-08-31 05:20:48,737 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 [2021-08-31 05:20:48,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:48,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:48,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:48,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:48,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:48,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:48,765 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:20:48,801 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-08-31 05:20:48,801 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-08-31 05:20:48,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:48,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:48,817 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) [2021-08-31 05:20:48,819 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:20:48,833 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 [2021-08-31 05:20:48,836 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 05:20:48,836 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:20:48,836 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 05:20:48,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:48,881 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-08-31 05:20:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:48,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 05:20:48,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:48,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 05:20:48,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:48,976 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 [2021-08-31 05:20:48,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:49,074 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 67 transitions. Complement of second has 7 states. [2021-08-31 05:20:49,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 05:20:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2021-08-31 05:20:49,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-31 05:20:49,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:49,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-31 05:20:49,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:49,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-31 05:20:49,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:49,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 67 transitions. [2021-08-31 05:20:49,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-31 05:20:49,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 16 states and 22 transitions. [2021-08-31 05:20:49,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-31 05:20:49,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-08-31 05:20:49,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2021-08-31 05:20:49,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 05:20:49,092 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-08-31 05:20:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2021-08-31 05:20:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-31 05:20:49,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-08-31 05:20:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-08-31 05:20:49,138 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-08-31 05:20:49,138 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-08-31 05:20:49,138 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 05:20:49,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-08-31 05:20:49,141 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-31 05:20:49,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:49,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:49,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:49,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 05:20:49,144 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 141#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 151#L528 assume !(main_~length1~0 < 1); 149#L528-2 assume !(main_~length2~0 < 1); 150#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 146#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 144#L537-4 main_~i~1 := 0; 145#L541-3 [2021-08-31 05:20:49,144 INFO L793 eck$LassoCheckResult]: Loop: 145#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 155#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 145#L541-3 [2021-08-31 05:20:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:49,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-08-31 05:20:49,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:49,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578129719] [2021-08-31 05:20:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:49,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,167 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:49,187 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-08-31 05:20:49,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:49,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172943978] [2021-08-31 05:20:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:49,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,198 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:49,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-08-31 05:20:49,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:49,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417766807] [2021-08-31 05:20:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:49,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:49,242 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:49,539 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:20:49,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:20:49,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:20:49,539 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:20:49,539 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:20:49,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:49,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:20:49,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:20:49,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration2_Lasso [2021-08-31 05:20:49,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:20:49,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:20:49,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:49,953 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:20:49,953 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:20:49,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:49,956 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) [2021-08-31 05:20:49,959 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 [2021-08-31 05:20:49,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:49,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:49,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:49,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:49,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:49,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:49,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:49,969 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 [2021-08-31 05:20:49,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:49,992 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 [2021-08-31 05:20:49,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:49,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:49,993 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:49,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-31 05:20:49,995 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 [2021-08-31 05:20:50,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:50,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,057 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) [2021-08-31 05:20:50,061 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 [2021-08-31 05:20:50,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:50,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:50,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:50,071 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 [2021-08-31 05:20:50,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:50,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,112 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) [2021-08-31 05:20:50,121 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 [2021-08-31 05:20:50,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,134 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 [2021-08-31 05:20:50,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:50,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,169 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) [2021-08-31 05:20:50,170 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 [2021-08-31 05:20:50,171 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 [2021-08-31 05:20:50,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,219 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 [2021-08-31 05:20:50,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,221 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) [2021-08-31 05:20:50,222 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 [2021-08-31 05:20:50,223 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 [2021-08-31 05:20:50,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,279 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 [2021-08-31 05:20:50,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,280 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:50,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-31 05:20:50,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 05:20:50,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:50,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:50,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:50,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:50,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,333 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) [2021-08-31 05:20:50,334 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 [2021-08-31 05:20:50,335 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 [2021-08-31 05:20:50,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,387 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 [2021-08-31 05:20:50,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,389 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) [2021-08-31 05:20:50,397 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 [2021-08-31 05:20:50,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,410 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 [2021-08-31 05:20:50,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:50,452 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 [2021-08-31 05:20:50,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,454 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) [2021-08-31 05:20:50,456 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 [2021-08-31 05:20:50,459 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 [2021-08-31 05:20:50,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:50,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:50,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:50,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:50,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:50,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:50,504 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:20:50,531 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-08-31 05:20:50,531 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-08-31 05:20:50,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:50,537 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) [2021-08-31 05:20:50,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:20:50,548 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 [2021-08-31 05:20:50,571 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 05:20:50,572 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:20:50,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~nondetString2~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1) = -1*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~nondetString2~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 Supporting invariants [] [2021-08-31 05:20:50,599 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 [2021-08-31 05:20:50,609 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-08-31 05:20:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:50,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 05:20:50,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:50,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 05:20:50,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:50,675 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 [2021-08-31 05:20:50,675 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:50,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 34 transitions. Complement of second has 6 states. [2021-08-31 05:20:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 05:20:50,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-08-31 05:20:50,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-31 05:20:50,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:50,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2021-08-31 05:20:50,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:50,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2021-08-31 05:20:50,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:50,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2021-08-31 05:20:50,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 05:20:50,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 24 transitions. [2021-08-31 05:20:50,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-08-31 05:20:50,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-31 05:20:50,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2021-08-31 05:20:50,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 05:20:50,725 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-08-31 05:20:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2021-08-31 05:20:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-08-31 05:20:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-08-31 05:20:50,727 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-08-31 05:20:50,727 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-08-31 05:20:50,727 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 05:20:50,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-08-31 05:20:50,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 05:20:50,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:50,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:50,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:50,729 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 05:20:50,729 INFO L791 eck$LassoCheckResult]: Stem: 253#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 254#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 264#L528 assume !(main_~length1~0 < 1); 262#L528-2 assume !(main_~length2~0 < 1); 263#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 259#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 257#L537-4 main_~i~1 := 0; 258#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 265#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 266#L522 [2021-08-31 05:20:50,729 INFO L793 eck$LassoCheckResult]: Loop: 266#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 255#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 256#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 267#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 266#L522 [2021-08-31 05:20:50,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:50,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-08-31 05:20:50,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:50,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931093070] [2021-08-31 05:20:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:50,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:50,741 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:50,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:50,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:50,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 1 times [2021-08-31 05:20:50,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:50,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744480811] [2021-08-31 05:20:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:50,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:50,768 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:50,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:50,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:50,773 INFO L82 PathProgramCache]: Analyzing trace with hash -587636803, now seen corresponding path program 1 times [2021-08-31 05:20:50,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:50,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764431800] [2021-08-31 05:20:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:50,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:50,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 05:20:50,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764431800] [2021-08-31 05:20:50,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764431800] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 05:20:50,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 05:20:50,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-31 05:20:50,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26444070] [2021-08-31 05:20:51,037 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 [2021-08-31 05:20:51,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 05:20:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-31 05:20:51,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-31 05:20:51,109 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 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) [2021-08-31 05:20:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 05:20:51,248 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2021-08-31 05:20:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-31 05:20:51,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-08-31 05:20:51,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-08-31 05:20:51,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 38 transitions. [2021-08-31 05:20:51,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-08-31 05:20:51,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-08-31 05:20:51,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-08-31 05:20:51,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 05:20:51,252 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-08-31 05:20:51,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-08-31 05:20:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-08-31 05:20:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 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) [2021-08-31 05:20:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-08-31 05:20:51,255 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-08-31 05:20:51,255 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-08-31 05:20:51,255 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 05:20:51,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2021-08-31 05:20:51,256 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-31 05:20:51,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:51,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:51,256 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:51,256 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 05:20:51,257 INFO L791 eck$LassoCheckResult]: Stem: 320#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 321#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 332#L528 assume !(main_~length1~0 < 1); 330#L528-2 assume !(main_~length2~0 < 1); 331#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 326#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 324#L537-4 main_~i~1 := 0; 325#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 333#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 334#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 336#L520-3 [2021-08-31 05:20:51,257 INFO L793 eck$LassoCheckResult]: Loop: 336#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 343#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 335#L521 assume !(cstrspn_~sc~0 == cstrspn_~c~0); 336#L520-3 [2021-08-31 05:20:51,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1595220887, now seen corresponding path program 1 times [2021-08-31 05:20:51,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475844182] [2021-08-31 05:20:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,269 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,283 INFO L82 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 1 times [2021-08-31 05:20:51,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133002070] [2021-08-31 05:20:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,287 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,291 INFO L82 PathProgramCache]: Analyzing trace with hash -587636801, now seen corresponding path program 1 times [2021-08-31 05:20:51,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399841203] [2021-08-31 05:20:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:51,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 05:20:51,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399841203] [2021-08-31 05:20:51,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399841203] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 05:20:51,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 05:20:51,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-31 05:20:51,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421467594] [2021-08-31 05:20:51,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 05:20:51,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-31 05:20:51,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-31 05:20:51,442 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. cyclomatic complexity: 14 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-08-31 05:20:51,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 05:20:51,577 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-08-31 05:20:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-31 05:20:51,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 43 transitions. [2021-08-31 05:20:51,579 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-31 05:20:51,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 28 states and 35 transitions. [2021-08-31 05:20:51,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-08-31 05:20:51,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-08-31 05:20:51,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2021-08-31 05:20:51,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 05:20:51,588 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-08-31 05:20:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2021-08-31 05:20:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2021-08-31 05:20:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 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) [2021-08-31 05:20:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-08-31 05:20:51,592 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-08-31 05:20:51,592 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-08-31 05:20:51,592 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 05:20:51,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2021-08-31 05:20:51,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-31 05:20:51,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:51,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:51,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:51,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 05:20:51,596 INFO L791 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 405#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 416#L528 assume !(main_~length1~0 < 1); 414#L528-2 assume !(main_~length2~0 < 1); 415#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 410#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 408#L537-4 main_~i~1 := 0; 409#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 429#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 428#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 427#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 426#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 420#L520-3 [2021-08-31 05:20:51,596 INFO L793 eck$LassoCheckResult]: Loop: 420#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 425#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 419#L521 assume !(cstrspn_~sc~0 == cstrspn_~c~0); 420#L520-3 [2021-08-31 05:20:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,597 INFO L82 PathProgramCache]: Analyzing trace with hash -294332619, now seen corresponding path program 1 times [2021-08-31 05:20:51,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142610508] [2021-08-31 05:20:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,638 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:51,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,658 INFO L82 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 2 times [2021-08-31 05:20:51,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074715396] [2021-08-31 05:20:51,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,665 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:51,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1860214625, now seen corresponding path program 1 times [2021-08-31 05:20:51,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:51,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495703763] [2021-08-31 05:20:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:51,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,681 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:51,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:52,495 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:20:52,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:20:52,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:20:52,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:20:52,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:20:52,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:52,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:20:52,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:20:52,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration5_Lasso [2021-08-31 05:20:52,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:20:52,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:20:52,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:52,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:53,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:20:53,456 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:20:53,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,471 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-31 05:20:53,473 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 [2021-08-31 05:20:53,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:53,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,517 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,525 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 [2021-08-31 05:20:53,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-31 05:20:53,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:53,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:53,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:53,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,566 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-31 05:20:53,568 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 [2021-08-31 05:20:53,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-31 05:20:53,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,593 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-08-31 05:20:53,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-31 05:20:53,595 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 [2021-08-31 05:20:53,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-08-31 05:20:53,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,620 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-31 05:20:53,622 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 [2021-08-31 05:20:53,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-08-31 05:20:53,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,648 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-31 05:20:53,650 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 [2021-08-31 05:20:53,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:53,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,679 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-31 05:20:53,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 05:20:53,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:53,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:53,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:53,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,735 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-31 05:20:53,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 05:20:53,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-08-31 05:20:53,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,763 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-31 05:20:53,765 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 [2021-08-31 05:20:53,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:53,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:53,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-08-31 05:20:53,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,793 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-31 05:20:53,796 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 [2021-08-31 05:20:53,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-08-31 05:20:53,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,821 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-31 05:20:53,828 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 [2021-08-31 05:20:53,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-31 05:20:53,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,853 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-31 05:20:53,855 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 [2021-08-31 05:20:53,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:53,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:53,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-08-31 05:20:53,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,884 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-31 05:20:53,886 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 [2021-08-31 05:20:53,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-08-31 05:20:53,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,911 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-31 05:20:53,917 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 [2021-08-31 05:20:53,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:53,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,942 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-08-31 05:20:53,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-31 05:20:53,944 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 [2021-08-31 05:20:53,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:53,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:53,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:53,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:53,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-08-31 05:20:53,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:53,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:53,969 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:53,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-31 05:20:53,971 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 [2021-08-31 05:20:53,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:53,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:53,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:53,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:53,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:53,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:54,020 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:20:54,058 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-08-31 05:20:54,058 INFO L444 ModelExtractionUtils]: 26 out of 49 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-08-31 05:20:54,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:54,065 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:54,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-31 05:20:54,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:20:54,101 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 05:20:54,101 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:20:54,101 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3, ULTIMATE.start_cstrspn_~spanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3 - 1*ULTIMATE.start_cstrspn_~spanp~0.offset Supporting invariants [] [2021-08-31 05:20:54,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:54,166 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2021-08-31 05:20:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:54,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-31 05:20:54,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:54,277 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-31 05:20:54,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:54,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:54,322 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-08-31 05:20:54,322 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:54,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 46 transitions. Complement of second has 7 states. [2021-08-31 05:20:54,386 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 [2021-08-31 05:20:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-08-31 05:20:54,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2021-08-31 05:20:54,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:54,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2021-08-31 05:20:54,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:54,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2021-08-31 05:20:54,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:54,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 46 transitions. [2021-08-31 05:20:54,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 05:20:54,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 24 states and 30 transitions. [2021-08-31 05:20:54,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-31 05:20:54,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-31 05:20:54,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2021-08-31 05:20:54,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 05:20:54,399 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-08-31 05:20:54,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2021-08-31 05:20:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-08-31 05:20:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 22 states have internal predecessors, (29), 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) [2021-08-31 05:20:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2021-08-31 05:20:54,402 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-08-31 05:20:54,402 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-08-31 05:20:54,402 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-31 05:20:54,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2021-08-31 05:20:54,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 05:20:54,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:54,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:54,404 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:54,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 05:20:54,404 INFO L791 eck$LassoCheckResult]: Stem: 618#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 619#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 631#L528 assume !(main_~length1~0 < 1); 629#L528-2 assume !(main_~length2~0 < 1); 630#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 626#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 627#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 628#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 624#L537-4 main_~i~1 := 0; 625#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 638#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 639#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 632#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 633#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 640#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 623#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 634#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 635#L522 [2021-08-31 05:20:54,404 INFO L793 eck$LassoCheckResult]: Loop: 635#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 620#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 621#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 637#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 635#L522 [2021-08-31 05:20:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash -796682687, now seen corresponding path program 1 times [2021-08-31 05:20:54,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:54,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178663931] [2021-08-31 05:20:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:54,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:54,439 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:54,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:54,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 2 times [2021-08-31 05:20:54,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:54,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099448716] [2021-08-31 05:20:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:54,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:54,467 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:54,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:54,476 INFO L82 PathProgramCache]: Analyzing trace with hash 477217064, now seen corresponding path program 2 times [2021-08-31 05:20:54,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:54,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220646927] [2021-08-31 05:20:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:54,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:54,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-31 05:20:54,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 05:20:54,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220646927] [2021-08-31 05:20:54,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220646927] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 05:20:54,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129386984] [2021-08-31 05:20:54,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 05:20:54,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 05:20:54,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:54,746 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 05:20:54,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-08-31 05:20:54,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 05:20:54,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 05:20:54,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-31 05:20:54,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:55,011 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-08-31 05:20:55,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 26 [2021-08-31 05:20:55,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-08-31 05:20:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-31 05:20:55,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 05:20:55,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2021-08-31 05:20:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-31 05:20:55,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129386984] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 05:20:55,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 05:20:55,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2021-08-31 05:20:55,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863136324] [2021-08-31 05:20:55,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 05:20:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-31 05:20:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-08-31 05:20:55,427 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand has 21 states, 20 states have (on average 2.3) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:20:55,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 05:20:55,790 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-08-31 05:20:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-31 05:20:55,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2021-08-31 05:20:55,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-08-31 05:20:55,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 52 transitions. [2021-08-31 05:20:55,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-08-31 05:20:55,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-08-31 05:20:55,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 52 transitions. [2021-08-31 05:20:55,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 05:20:55,794 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-08-31 05:20:55,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 52 transitions. [2021-08-31 05:20:55,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2021-08-31 05:20:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.225) internal successors, (49), 39 states have internal predecessors, (49), 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) [2021-08-31 05:20:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-08-31 05:20:55,797 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-08-31 05:20:55,797 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-08-31 05:20:55,797 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-31 05:20:55,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2021-08-31 05:20:55,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-31 05:20:55,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:20:55,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:20:55,798 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:20:55,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 05:20:55,798 INFO L791 eck$LassoCheckResult]: Stem: 848#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 849#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 862#L528 assume !(main_~length1~0 < 1); 860#L528-2 assume !(main_~length2~0 < 1); 861#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 856#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 857#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 887#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 886#L537-4 main_~i~1 := 0; 885#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 884#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 883#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 882#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 874#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 875#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 879#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 878#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 872#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 850#L520-3 [2021-08-31 05:20:55,799 INFO L793 eck$LassoCheckResult]: Loop: 850#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 851#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 865#L521 assume !(cstrspn_~sc~0 == cstrspn_~c~0); 850#L520-3 [2021-08-31 05:20:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:55,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1072640524, now seen corresponding path program 3 times [2021-08-31 05:20:55,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:55,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090430523] [2021-08-31 05:20:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:55,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:55,823 INFO L82 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 3 times [2021-08-31 05:20:55,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:55,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920040447] [2021-08-31 05:20:55,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:55,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,826 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 477217066, now seen corresponding path program 1 times [2021-08-31 05:20:55,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:20:55,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042226861] [2021-08-31 05:20:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:20:55,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:20:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,864 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:20:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:20:55,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:20:57,426 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:20:57,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:20:57,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:20:57,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:20:57,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:20:57,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:57,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:20:57,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:20:57,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration7_Lasso [2021-08-31 05:20:57,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:20:57,427 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:20:57,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:57,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:20:58,897 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:20:58,897 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:20:58,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:58,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:58,909 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:58,926 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 [2021-08-31 05:20:58,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:58,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:58,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:58,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:58,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:58,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:58,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:58,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-31 05:20:58,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:58,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:58,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:58,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:58,975 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:58,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-31 05:20:58,978 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 [2021-08-31 05:20:58,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:58,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:58,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:58,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:58,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:58,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:58,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:59,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,026 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 05:20:59,033 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 [2021-08-31 05:20:59,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-08-31 05:20:59,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:59,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,082 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-08-31 05:20:59,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-31 05:20:59,084 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 [2021-08-31 05:20:59,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-08-31 05:20:59,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,130 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-08-31 05:20:59,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-31 05:20:59,132 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 [2021-08-31 05:20:59,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-31 05:20:59,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,165 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-08-31 05:20:59,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-31 05:20:59,167 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 [2021-08-31 05:20:59,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-08-31 05:20:59,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,191 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2021-08-31 05:20:59,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-31 05:20:59,193 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 [2021-08-31 05:20:59,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-08-31 05:20:59,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,225 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-08-31 05:20:59,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-31 05:20:59,227 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 [2021-08-31 05:20:59,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:59,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,250 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-08-31 05:20:59,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-08-31 05:20:59,252 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 [2021-08-31 05:20:59,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:59,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,284 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-08-31 05:20:59,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-08-31 05:20:59,286 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 [2021-08-31 05:20:59,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-08-31 05:20:59,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,311 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-08-31 05:20:59,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-08-31 05:20:59,312 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 [2021-08-31 05:20:59,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-08-31 05:20:59,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,337 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-08-31 05:20:59,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-08-31 05:20:59,340 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 [2021-08-31 05:20:59,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:20:59,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 05:20:59,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:20:59,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-08-31 05:20:59,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,364 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-08-31 05:20:59,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-08-31 05:20:59,366 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 [2021-08-31 05:20:59,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-08-31 05:20:59,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,397 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-08-31 05:20:59,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-08-31 05:20:59,399 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 [2021-08-31 05:20:59,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-08-31 05:20:59,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,441 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-08-31 05:20:59,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-08-31 05:20:59,443 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 [2021-08-31 05:20:59,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:20:59,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-08-31 05:20:59,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,471 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2021-08-31 05:20:59,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-08-31 05:20:59,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 05:20:59,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:20:59,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:20:59,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:20:59,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:20:59,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:20:59,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:20:59,512 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:20:59,565 INFO L443 ModelExtractionUtils]: Simplification made 27 calls to the SMT solver. [2021-08-31 05:20:59,565 INFO L444 ModelExtractionUtils]: 13 out of 58 variables were initially zero. Simplification set additionally 42 variables to zero. [2021-08-31 05:20:59,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:20:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:20:59,566 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2021-08-31 05:20:59,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-08-31 05:20:59,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:20:59,577 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 05:20:59,578 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:20:59,578 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2, ULTIMATE.start_cstrspn_~spanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 - 1*ULTIMATE.start_cstrspn_~spanp~0.offset Supporting invariants [] [2021-08-31 05:20:59,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-08-31 05:20:59,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-08-31 05:20:59,728 INFO L297 tatePredicateManager]: 44 out of 45 supporting invariants were superfluous and have been removed [2021-08-31 05:20:59,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:59,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 05:20:59,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:59,849 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-31 05:20:59,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:20:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:20:59,897 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-31 05:20:59,897 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:20:59,950 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 49 states and 58 transitions. Complement of second has 6 states. [2021-08-31 05:20:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 05:20:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:20:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-08-31 05:20:59,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2021-08-31 05:20:59,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:20:59,952 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 05:20:59,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:20:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:20:59,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 05:20:59,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:00,073 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-31 05:21:00,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:21:00,104 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-31 05:21:00,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:21:00,170 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 49 states and 60 transitions. Complement of second has 6 states. [2021-08-31 05:21:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 05:21:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:21:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-08-31 05:21:00,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2021-08-31 05:21:00,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:00,173 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 05:21:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:00,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 05:21:00,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:00,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-31 05:21:00,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:21:00,330 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-31 05:21:00,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:21:00,378 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 54 states and 64 transitions. Complement of second has 5 states. [2021-08-31 05:21:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 05:21:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-08-31 05:21:00,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2021-08-31 05:21:00,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2021-08-31 05:21:00,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:00,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 21 letters. Loop has 3 letters. [2021-08-31 05:21:00,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:00,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-31 05:21:00,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:00,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 64 transitions. [2021-08-31 05:21:00,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-31 05:21:00,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 27 states and 33 transitions. [2021-08-31 05:21:00,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-31 05:21:00,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-08-31 05:21:00,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 33 transitions. [2021-08-31 05:21:00,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 05:21:00,383 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-08-31 05:21:00,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 33 transitions. [2021-08-31 05:21:00,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2021-08-31 05:21:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 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) [2021-08-31 05:21:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-08-31 05:21:00,385 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-08-31 05:21:00,385 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-08-31 05:21:00,385 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-31 05:21:00,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-08-31 05:21:00,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-31 05:21:00,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:21:00,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:21:00,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:21:00,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 05:21:00,386 INFO L791 eck$LassoCheckResult]: Stem: 1459#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1460#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1472#L528 assume !(main_~length1~0 < 1); 1470#L528-2 assume !(main_~length2~0 < 1); 1471#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1466#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1467#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1468#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1469#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1479#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 1464#L537-4 main_~i~1 := 0; 1465#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1477#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1478#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 1473#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 1474#L522 [2021-08-31 05:21:00,387 INFO L793 eck$LassoCheckResult]: Loop: 1474#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 1461#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 1462#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 1475#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 1474#L522 [2021-08-31 05:21:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:00,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1523394364, now seen corresponding path program 1 times [2021-08-31 05:21:00,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:00,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121149036] [2021-08-31 05:21:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:00,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:00,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 3 times [2021-08-31 05:21:00,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:00,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684345567] [2021-08-31 05:21:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:00,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,408 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:00,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1430543523, now seen corresponding path program 4 times [2021-08-31 05:21:00,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:00,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287317721] [2021-08-31 05:21:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:00,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,422 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:00,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:01,467 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:21:01,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:21:01,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:21:01,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:21:01,468 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:21:01,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:01,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:21:01,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:21:01,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration8_Lasso [2021-08-31 05:21:01,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:21:01,468 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:21:01,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:01,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:02,221 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:21:02,221 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:21:02,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,222 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2021-08-31 05:21:02,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-08-31 05:21:02,226 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 [2021-08-31 05:21:02,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:02,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:02,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:02,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:02,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:02,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:02,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:21:02,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-08-31 05:21:02,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,252 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2021-08-31 05:21:02,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-08-31 05:21:02,254 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 [2021-08-31 05:21:02,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:02,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:02,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:02,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:02,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:02,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:02,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:21:02,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-08-31 05:21:02,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,283 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2021-08-31 05:21:02,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-08-31 05:21:02,285 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 [2021-08-31 05:21:02,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:02,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 05:21:02,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:02,292 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-31 05:21:02,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:02,293 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 05:21:02,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 05:21:02,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:21:02,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-08-31 05:21:02,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,312 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2021-08-31 05:21:02,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-08-31 05:21:02,314 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 [2021-08-31 05:21:02,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:02,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:02,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:02,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:02,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:02,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:02,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:21:02,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-08-31 05:21:02,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,339 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2021-08-31 05:21:02,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-08-31 05:21:02,341 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 [2021-08-31 05:21:02,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:02,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:02,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:02,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:02,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:02,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:02,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:21:02,423 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2021-08-31 05:21:02,423 INFO L444 ModelExtractionUtils]: 19 out of 58 variables were initially zero. Simplification set additionally 34 variables to zero. [2021-08-31 05:21:02,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:02,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:02,439 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2021-08-31 05:21:02,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-08-31 05:21:02,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:21:02,448 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-31 05:21:02,448 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:21:02,448 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_cstrspn_~p~0.offset) = 3*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_cstrspn_~p~0.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_5 + 3*ULTIMATE.start_main_~i~1 >= 0] [2021-08-31 05:21:02,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-08-31 05:21:02,493 INFO L297 tatePredicateManager]: 13 out of 15 supporting invariants were superfluous and have been removed [2021-08-31 05:21:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:02,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-31 05:21:02,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:02,551 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-31 05:21:02,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-08-31 05:21:02,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-08-31 05:21:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:02,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-31 05:21:02,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:21:02,767 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-08-31 05:21:02,767 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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) [2021-08-31 05:21:02,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-08-31 05:21:02,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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) Result 45 states and 55 transitions. Complement of second has 12 states. [2021-08-31 05:21:02,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-31 05:21:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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) [2021-08-31 05:21:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 36 transitions. [2021-08-31 05:21:02,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 36 transitions. Stem has 15 letters. Loop has 4 letters. [2021-08-31 05:21:02,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:02,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 36 transitions. Stem has 19 letters. Loop has 4 letters. [2021-08-31 05:21:02,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:02,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 36 transitions. Stem has 15 letters. Loop has 8 letters. [2021-08-31 05:21:02,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:02,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2021-08-31 05:21:02,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-31 05:21:02,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 26 states and 31 transitions. [2021-08-31 05:21:02,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-31 05:21:02,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-31 05:21:02,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2021-08-31 05:21:02,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 05:21:02,942 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-08-31 05:21:02,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2021-08-31 05:21:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-08-31 05:21:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 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) [2021-08-31 05:21:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-08-31 05:21:02,944 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-31 05:21:02,944 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-31 05:21:02,944 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-31 05:21:02,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-08-31 05:21:02,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-31 05:21:02,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 05:21:02,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 05:21:02,945 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 05:21:02,945 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 05:21:02,946 INFO L791 eck$LassoCheckResult]: Stem: 1694#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1695#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1707#L528 assume !(main_~length1~0 < 1); 1705#L528-2 assume !(main_~length2~0 < 1); 1706#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1701#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1702#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1703#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1704#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1713#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1717#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1716#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 1699#L537-4 main_~i~1 := 0; 1700#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1714#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1715#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 1708#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 1709#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 1698#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 1697#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 1710#L521 [2021-08-31 05:21:02,946 INFO L793 eck$LassoCheckResult]: Loop: 1710#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 1711#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 1696#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 1697#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset;havoc cstrspn_#t~mem5; 1710#L521 [2021-08-31 05:21:02,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:02,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1153338316, now seen corresponding path program 1 times [2021-08-31 05:21:02,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:02,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109115702] [2021-08-31 05:21:02,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:02,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:02,956 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:02,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:02,968 INFO L82 PathProgramCache]: Analyzing trace with hash 2666426, now seen corresponding path program 4 times [2021-08-31 05:21:02,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:02,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517204819] [2021-08-31 05:21:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:02,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:02,971 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:02,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:02,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:02,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1738616211, now seen corresponding path program 5 times [2021-08-31 05:21:02,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 05:21:02,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426983472] [2021-08-31 05:21:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 05:21:02,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 05:21:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:02,986 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 05:21:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 05:21:03,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 05:21:04,538 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 05:21:04,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 05:21:04,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 05:21:04,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 05:21:04,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 05:21:04,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:04,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 05:21:04,538 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 05:21:04,538 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration9_Lasso [2021-08-31 05:21:04,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 05:21:04,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 05:21:04,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:04,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 05:21:05,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 05:21:05,719 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 05:21:05,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:05,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:05,727 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2021-08-31 05:21:05,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-08-31 05:21:05,729 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 [2021-08-31 05:21:05,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:05,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:05,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:05,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:05,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:05,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:05,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 05:21:05,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-08-31 05:21:05,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:05,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:05,757 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2021-08-31 05:21:05,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-08-31 05:21:05,759 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 [2021-08-31 05:21:05,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 05:21:05,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 05:21:05,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 05:21:05,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 05:21:05,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 05:21:05,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 05:21:05,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 05:21:05,812 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-08-31 05:21:05,812 INFO L444 ModelExtractionUtils]: 30 out of 55 variables were initially zero. Simplification set additionally 22 variables to zero. [2021-08-31 05:21:05,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 05:21:05,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 05:21:05,817 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2021-08-31 05:21:05,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-08-31 05:21:05,819 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 05:21:05,826 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 05:21:05,826 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 05:21:05,826 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_6) = -1*ULTIMATE.start_cstrspn_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_6 Supporting invariants [] [2021-08-31 05:21:05,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-08-31 05:21:05,896 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-08-31 05:21:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 05:21:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:05,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-31 05:21:05,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 05:21:06,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 05:21:06,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 05:21:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 05:21:06,063 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-08-31 05:21:06,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:21:06,126 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 49 transitions. Complement of second has 6 states. [2021-08-31 05:21:06,126 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 [2021-08-31 05:21:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 05:21:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-08-31 05:21:06,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 20 letters. Loop has 4 letters. [2021-08-31 05:21:06,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:06,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 24 letters. Loop has 4 letters. [2021-08-31 05:21:06,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:06,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 20 letters. Loop has 8 letters. [2021-08-31 05:21:06,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 05:21:06,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2021-08-31 05:21:06,129 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 05:21:06,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2021-08-31 05:21:06,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 05:21:06,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 05:21:06,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 05:21:06,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 05:21:06,129 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 05:21:06,129 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 05:21:06,129 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 05:21:06,130 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-31 05:21:06,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 05:21:06,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 05:21:06,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 05:21:06,132 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 05:21:06,136 INFO L158 Benchmark]: Toolchain (without parser) took 20480.56ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 46.5MB in the beginning and 54.9MB in the end (delta: -8.4MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,137 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 05:21:06,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.86ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 45.5MB in the end (delta: 819.6kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.40ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 43.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,138 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 42.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,138 INFO L158 Benchmark]: RCFGBuilder took 305.55ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 32.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,138 INFO L158 Benchmark]: BuchiAutomizer took 19692.54ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 32.1MB in the beginning and 54.9MB in the end (delta: -22.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2021-08-31 05:21:06,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.86ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 45.5MB in the end (delta: 819.6kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.40ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 43.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 42.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.55ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 32.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 19692.54ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 32.1MB in the beginning and 54.9MB in the end (delta: -22.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (3 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[nondetString2] + -1 * nondetString2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * spanp and consists of 5 locations. One deterministic module has affine ranking function 3 * i + -1 * p and consists of 10 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * p and consists of 5 locations. One nondeterministic module has affine ranking function -1 * spanp + unknown-#length-unknown[nondetString2] and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 21 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 05:21:06,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-08-31 05:21:06,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-08-31 05:21:06,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...