./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3 --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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:34:35,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:34:35,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:34:35,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:34:35,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:34:35,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:34:35,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:34:35,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:34:35,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:34:35,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:34:35,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:34:35,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:34:35,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:34:35,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:34:35,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:34:35,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:34:35,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:34:35,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:34:35,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:34:35,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:34:35,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:34:35,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:34:35,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:34:35,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:34:35,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:34:35,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:34:35,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:34:35,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:34:35,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:34:35,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:34:35,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:34:35,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:34:35,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:34:35,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:34:35,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:34:35,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:34:35,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:34:35,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:34:35,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:34:35,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:34:35,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:34:35,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:34:35,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:34:35,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:34:35,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:34:35,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:34:35,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:34:35,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:34:35,518 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:34:35,519 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:34:35,519 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:34:35,519 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:34:35,520 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:34:35,520 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:34:35,521 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:34:35,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:34:35,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:34:35,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:34:35,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:34:35,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:34:35,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:34:35,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:34:35,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:34:35,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:34:35,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:34:35,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:34:35,523 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:34:35,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:34:35,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:34:35,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:34:35,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:34:35,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:34:35,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:34:35,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:34:35,528 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:34:35,528 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2021-10-15 19:34:35,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:34:35,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:34:35,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:34:35,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:34:35,858 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:34:35,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2021-10-15 19:34:35,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/data/e33fe6b11/d76e7ca75a0c44d5baa133fbf11319d1/FLAG4fa12ed00 [2021-10-15 19:34:36,430 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:34:36,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2021-10-15 19:34:36,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/data/e33fe6b11/d76e7ca75a0c44d5baa133fbf11319d1/FLAG4fa12ed00 [2021-10-15 19:34:36,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/data/e33fe6b11/d76e7ca75a0c44d5baa133fbf11319d1 [2021-10-15 19:34:36,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:34:36,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:34:36,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:34:36,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:34:36,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:34:36,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:34:36" (1/1) ... [2021-10-15 19:34:36,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664d23fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:36, skipping insertion in model container [2021-10-15 19:34:36,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:34:36" (1/1) ... [2021-10-15 19:34:36,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:34:36,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:34:37,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:34:37,217 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:34:37,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:34:37,329 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:34:37,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37 WrapperNode [2021-10-15 19:34:37,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:34:37,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:34:37,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:34:37,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:34:37,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:34:37,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:34:37,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:34:37,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:34:37,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:34:37,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:34:37,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:34:37,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:34:37,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (1/1) ... [2021-10-15 19:34:37,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:37,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:37,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:37,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:34:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:34:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:34:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:34:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:34:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:34:37,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:34:37,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:34:37,878 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-15 19:34:37,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:34:37 BoogieIcfgContainer [2021-10-15 19:34:37,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:34:37,888 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:34:37,888 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:34:37,891 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:34:37,892 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:34:37,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:34:36" (1/3) ... [2021-10-15 19:34:37,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5092063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:34:37, skipping insertion in model container [2021-10-15 19:34:37,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:34:37,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:34:37" (2/3) ... [2021-10-15 19:34:37,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5092063c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:34:37, skipping insertion in model container [2021-10-15 19:34:37,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:34:37,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:34:37" (3/3) ... [2021-10-15 19:34:37,901 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncat-alloca-2.i [2021-10-15 19:34:37,961 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:34:37,961 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:34:37,963 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:34:37,963 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:34:37,963 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:34:37,964 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:34:37,964 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:34:37,964 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:34:37,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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) [2021-10-15 19:34:38,018 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2021-10-15 19:34:38,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:38,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:38,025 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:34:38,025 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:38,026 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:34:38,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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) [2021-10-15 19:34:38,032 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2021-10-15 19:34:38,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:38,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:38,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:34:38,033 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:38,042 INFO L791 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 15#L534true assume !(main_~length1~0 < 1); 22#L534-2true assume !(main_~length2~0 < 1); 18#L537-1true assume !(main_~n~0 < 1); 4#L540-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 24#L547-3true [2021-10-15 19:34:38,042 INFO L793 eck$LassoCheckResult]: Loop: 24#L547-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 14#L547-2true main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 24#L547-3true [2021-10-15 19:34:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:38,056 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-10-15 19:34:38,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:38,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310596055] [2021-10-15 19:34:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:38,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,314 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:38,317 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2021-10-15 19:34:38,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:38,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058869887] [2021-10-15 19:34:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:38,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:38,367 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2021-10-15 19:34:38,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:38,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344806651] [2021-10-15 19:34:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:38,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,424 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:38,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:39,057 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:34:39,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:34:39,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:34:39,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:34:39,058 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:34:39,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:34:39,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:34:39,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration1_Lasso [2021-10-15 19:34:39,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:34:39,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:34:39,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:39,631 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:34:39,635 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:34:39,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,651 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 [2021-10-15 19:34:39,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:39,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:39,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:34:39,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:39,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:39,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:34:39,716 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 [2021-10-15 19:34:39,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:39,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:39,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:39,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:39,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:39,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:34:39,765 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 [2021-10-15 19:34:39,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:39,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:39,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:39,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:39,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:39,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:34:39,822 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 [2021-10-15 19:34:39,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:39,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:39,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:39,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:39,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:34:39,888 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 [2021-10-15 19:34:39,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:39,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:39,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:39,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:39,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:39,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:39,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:39,970 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 [2021-10-15 19:34:39,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:39,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:39,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:39,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:39,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:39,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:39,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:39,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:34:39,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-15 19:34:40,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:34:40,021 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 [2021-10-15 19:34:40,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:40,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:40,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,079 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:34:40,097 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 [2021-10-15 19:34:40,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,164 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,170 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 [2021-10-15 19:34:40,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:34:40,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:34:40,230 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 [2021-10-15 19:34:40,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:34:40,261 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 [2021-10-15 19:34:40,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,300 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:34:40,302 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 [2021-10-15 19:34:40,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:34:40,353 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 [2021-10-15 19:34:40,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:40,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:40,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,426 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:34:40,427 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 [2021-10-15 19:34:40,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:40,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:40,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:40,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:40,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,480 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:34:40,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:34:40,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:40,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:40,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:40,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:40,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:40,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:40,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:34:40,584 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-10-15 19:34:40,585 INFO L444 ModelExtractionUtils]: 9 out of 31 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-10-15 19:34:40,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:40,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:40,594 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:40,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:34:40,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:34:40,679 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 19:34:40,679 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:34:40,680 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_1 - 1*ULTIMATE.start_main_~length1~0 >= 0] [2021-10-15 19:34:40,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,742 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-10-15 19:34:40,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:40,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:34:40,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:40,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:40,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 19:34:40,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:40,955 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 [2021-10-15 19:34:40,956 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:41,058 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 92 transitions. Complement of second has 7 states. [2021-10-15 19:34:41,060 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 [2021-10-15 19:34:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2021-10-15 19:34:41,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-15 19:34:41,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:41,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-15 19:34:41,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:41,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-15 19:34:41,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:41,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 92 transitions. [2021-10-15 19:34:41,072 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-15 19:34:41,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 20 states and 27 transitions. [2021-10-15 19:34:41,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-15 19:34:41,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-15 19:34:41,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-15 19:34:41,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:41,078 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 19:34:41,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-15 19:34:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-15 19:34:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-15 19:34:41,107 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 19:34:41,107 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-15 19:34:41,107 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:34:41,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-15 19:34:41,108 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-15 19:34:41,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:41,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:41,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:34:41,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:41,110 INFO L791 eck$LassoCheckResult]: Stem: 175#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 176#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 183#L534 assume !(main_~length1~0 < 1); 184#L534-2 assume !(main_~length2~0 < 1); 187#L537-1 assume !(main_~n~0 < 1); 173#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 174#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 192#L547-4 main_~i~1 := 0; 179#L552-3 [2021-10-15 19:34:41,110 INFO L793 eck$LassoCheckResult]: Loop: 179#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 181#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 179#L552-3 [2021-10-15 19:34:41,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2021-10-15 19:34:41,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217173563] [2021-10-15 19:34:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:41,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:34:41,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217173563] [2021-10-15 19:34:41,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217173563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:34:41,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:34:41,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:34:41,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184685806] [2021-10-15 19:34:41,185 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 19:34:41,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,186 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2021-10-15 19:34:41,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877940612] [2021-10-15 19:34:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:41,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:34:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:34:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:34:41,252 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:34:41,308 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-10-15 19:34:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:34:41,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-10-15 19:34:41,310 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-15 19:34:41,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 27 transitions. [2021-10-15 19:34:41,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-15 19:34:41,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-15 19:34:41,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-15 19:34:41,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:41,312 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-15 19:34:41,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-15 19:34:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-15 19:34:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 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) [2021-10-15 19:34:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-15 19:34:41,315 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-15 19:34:41,315 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-15 19:34:41,315 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:34:41,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-10-15 19:34:41,316 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-15 19:34:41,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:41,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:41,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:34:41,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:41,317 INFO L791 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 229#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 236#L534 assume !(main_~length1~0 < 1); 237#L534-2 assume !(main_~length2~0 < 1); 240#L537-1 assume !(main_~n~0 < 1); 226#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 227#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 230#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 231#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 245#L547-4 main_~i~1 := 0; 232#L552-3 [2021-10-15 19:34:41,317 INFO L793 eck$LassoCheckResult]: Loop: 232#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 234#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 232#L552-3 [2021-10-15 19:34:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2021-10-15 19:34:41,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277341601] [2021-10-15 19:34:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,334 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2021-10-15 19:34:41,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858660395] [2021-10-15 19:34:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,377 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:41,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2021-10-15 19:34:41,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423203943] [2021-10-15 19:34:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:41,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:34:41,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423203943] [2021-10-15 19:34:41,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423203943] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:34:41,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035877141] [2021-10-15 19:34:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:34:41,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:41,469 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:34:41,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-15 19:34:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:41,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:34:41,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:41,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035877141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:34:41,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:34:41,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-15 19:34:41,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546160682] [2021-10-15 19:34:41,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:34:41,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 19:34:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:34:41,707 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 10 Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:34:41,904 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-15 19:34:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-15 19:34:41,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-10-15 19:34:41,915 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 20 [2021-10-15 19:34:41,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 63 transitions. [2021-10-15 19:34:41,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-15 19:34:41,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-15 19:34:41,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 63 transitions. [2021-10-15 19:34:41,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:41,918 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 63 transitions. [2021-10-15 19:34:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 63 transitions. [2021-10-15 19:34:41,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 29. [2021-10-15 19:34:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 28 states have internal predecessors, (38), 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) [2021-10-15 19:34:41,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2021-10-15 19:34:41,922 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-15 19:34:41,922 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-15 19:34:41,922 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 19:34:41,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2021-10-15 19:34:41,923 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-15 19:34:41,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:41,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:41,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:34:41,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:41,924 INFO L791 eck$LassoCheckResult]: Stem: 363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 364#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 370#L534 assume !(main_~length1~0 < 1); 371#L534-2 assume !(main_~length2~0 < 1); 382#L537-1 assume !(main_~n~0 < 1); 361#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 362#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 389#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 388#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 387#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 386#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 385#L547-4 main_~i~1 := 0; 381#L552-3 [2021-10-15 19:34:41,924 INFO L793 eck$LassoCheckResult]: Loop: 381#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 380#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 381#L552-3 [2021-10-15 19:34:41,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1749479291, now seen corresponding path program 2 times [2021-10-15 19:34:41,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189472123] [2021-10-15 19:34:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:41,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,963 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:41,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:41,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 3 times [2021-10-15 19:34:41,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:41,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733893941] [2021-10-15 19:34:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:42,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:42,016 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:42,022 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:42,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:42,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1917387421, now seen corresponding path program 2 times [2021-10-15 19:34:42,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:42,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680479622] [2021-10-15 19:34:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:42,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:42,059 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:42,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:42,664 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:34:42,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:34:42,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:34:42,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:34:42,664 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:34:42,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:42,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:34:42,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:34:42,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration4_Lasso [2021-10-15 19:34:42,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:34:42,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:34:42,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:42,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:43,190 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:34:43,190 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:34:43,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,198 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,203 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 [2021-10-15 19:34:43,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:43,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:43,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:43,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 19:34:43,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,278 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,290 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 [2021-10-15 19:34:43,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:43,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:43,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:43,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 19:34:43,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,355 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,363 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 [2021-10-15 19:34:43,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 19:34:43,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,439 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,446 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 [2021-10-15 19:34:43,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 19:34:43,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,516 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,551 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 [2021-10-15 19:34:43,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 19:34:43,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,627 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,631 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 [2021-10-15 19:34:43,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 19:34:43,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,705 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,707 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 [2021-10-15 19:34:43,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 19:34:43,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,779 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,782 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 [2021-10-15 19:34:43,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:43,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:43,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 19:34:43,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:43,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:43,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,850 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,853 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 [2021-10-15 19:34:43,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:43,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:43,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:43,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:43,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:43,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:43,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 19:34:43,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:34:43,937 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-15 19:34:43,937 INFO L444 ModelExtractionUtils]: 10 out of 34 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-10-15 19:34:43,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:43,939 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:43,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:34:43,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-15 19:34:43,975 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:34:43,975 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:34:43,975 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2021-10-15 19:34:44,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:44,040 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-15 19:34:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:44,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:34:44,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:44,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:34:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:44,147 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 [2021-10-15 19:34:44,147 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:44,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 54 transitions. Complement of second has 6 states. [2021-10-15 19:34:44,171 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 [2021-10-15 19:34:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-15 19:34:44,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-15 19:34:44,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:44,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2021-10-15 19:34:44,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:44,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-15 19:34:44,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:44,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2021-10-15 19:34:44,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:34:44,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 30 states and 40 transitions. [2021-10-15 19:34:44,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-15 19:34:44,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-15 19:34:44,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2021-10-15 19:34:44,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:44,185 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-15 19:34:44,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2021-10-15 19:34:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-15 19:34:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-15 19:34:44,191 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-15 19:34:44,191 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-15 19:34:44,191 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 19:34:44,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 40 transitions. [2021-10-15 19:34:44,192 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:34:44,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:44,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:44,194 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:34:44,194 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:44,195 INFO L791 eck$LassoCheckResult]: Stem: 520#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 521#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 529#L534 assume !(main_~length1~0 < 1); 530#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 538#L537-1 assume !(main_~n~0 < 1); 547#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 546#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 522#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 523#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 539#L547-4 main_~i~1 := 0; 524#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 525#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 528#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 534#L519-3 [2021-10-15 19:34:44,195 INFO L793 eck$LassoCheckResult]: Loop: 534#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 535#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 534#L519-3 [2021-10-15 19:34:44,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:44,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1209403751, now seen corresponding path program 1 times [2021-10-15 19:34:44,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:44,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985950574] [2021-10-15 19:34:44,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:44,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:44,238 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:44,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:44,268 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 1 times [2021-10-15 19:34:44,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:44,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293923883] [2021-10-15 19:34:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:44,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:44,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:44,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:44,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1699134462, now seen corresponding path program 1 times [2021-10-15 19:34:44,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:44,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349342528] [2021-10-15 19:34:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:44,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:44,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:34:44,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349342528] [2021-10-15 19:34:44,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349342528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:34:44,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322474415] [2021-10-15 19:34:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:44,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:34:44,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:44,521 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:34:44,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-15 19:34:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:44,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-15 19:34:44,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:44,676 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 10 treesize of output 8 [2021-10-15 19:34:44,894 INFO L354 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2021-10-15 19:34:44,894 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 61 treesize of output 42 [2021-10-15 19:34:44,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:45,270 INFO L354 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2021-10-15 19:34:45,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 31 [2021-10-15 19:34:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:45,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322474415] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:34:45,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:34:45,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-10-15 19:34:45,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532221568] [2021-10-15 19:34:45,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:34:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-15 19:34:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-10-15 19:34:45,323 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. cyclomatic complexity: 15 Second operand has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:34:45,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:34:45,840 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-10-15 19:34:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-15 19:34:45,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-10-15 19:34:45,841 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-15 19:34:45,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 56 transitions. [2021-10-15 19:34:45,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-15 19:34:45,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-15 19:34:45,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions. [2021-10-15 19:34:45,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:45,843 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-10-15 19:34:45,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions. [2021-10-15 19:34:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2021-10-15 19:34:45,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 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) [2021-10-15 19:34:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2021-10-15 19:34:45,847 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-10-15 19:34:45,847 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-10-15 19:34:45,847 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-15 19:34:45,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 49 transitions. [2021-10-15 19:34:45,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-15 19:34:45,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:34:45,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:34:45,849 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:34:45,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:34:45,849 INFO L791 eck$LassoCheckResult]: Stem: 676#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 677#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 679#L534 assume !(main_~length1~0 < 1); 680#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 688#L537-1 assume !(main_~n~0 < 1); 704#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 691#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 670#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 671#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 693#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 692#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 694#L547-4 main_~i~1 := 0; 672#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 673#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 678#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 684#L519-3 [2021-10-15 19:34:45,849 INFO L793 eck$LassoCheckResult]: Loop: 684#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 685#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 684#L519-3 [2021-10-15 19:34:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:45,850 INFO L82 PathProgramCache]: Analyzing trace with hash -948699273, now seen corresponding path program 2 times [2021-10-15 19:34:45,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:45,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850207677] [2021-10-15 19:34:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:45,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,863 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:45,886 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 2 times [2021-10-15 19:34:45,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:45,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114375558] [2021-10-15 19:34:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:45,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,890 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:45,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:45,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1166932644, now seen corresponding path program 2 times [2021-10-15 19:34:45,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:34:45,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51847795] [2021-10-15 19:34:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:34:45,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:34:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,909 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:34:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:34:45,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:47,090 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:34:47,090 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:34:47,090 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:34:47,090 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:34:47,091 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:34:47,091 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:47,091 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:34:47,091 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:34:47,091 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration6_Lasso [2021-10-15 19:34:47,091 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:34:47,091 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:34:47,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:47,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:34:48,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:34:48,294 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:34:48,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,302 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-15 19:34:48,305 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 [2021-10-15 19:34:48,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:48,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:48,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,344 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-15 19:34:48,345 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 [2021-10-15 19:34:48,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:48,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:48,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,410 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,418 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 [2021-10-15 19:34:48,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-15 19:34:48,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,478 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-15 19:34:48,479 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 [2021-10-15 19:34:48,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:48,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:48,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,511 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-15 19:34:48,512 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 [2021-10-15 19:34:48,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,567 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,569 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 [2021-10-15 19:34:48,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-15 19:34:48,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,626 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,628 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 [2021-10-15 19:34:48,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-15 19:34:48,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,656 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-15 19:34:48,658 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 [2021-10-15 19:34:48,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-15 19:34:48,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,698 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-15 19:34:48,699 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 [2021-10-15 19:34:48,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-15 19:34:48,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,728 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-15 19:34:48,730 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 [2021-10-15 19:34:48,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,758 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-15 19:34:48,772 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 [2021-10-15 19:34:48,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-15 19:34:48,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,801 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-15 19:34:48,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:34:48,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:34:48,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:34:48,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:34:48,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:34:48,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:48,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,833 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-15 19:34:48,834 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 [2021-10-15 19:34:48,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:34:48,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:34:48,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:34:48,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:34:48,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:34:48,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:34:48,890 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:34:48,928 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-15 19:34:48,929 INFO L444 ModelExtractionUtils]: 49 out of 64 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-15 19:34:48,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:34:48,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:34:48,934 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:34:48,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:34:48,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-15 19:34:48,964 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:34:48,964 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:34:48,964 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrncat_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrncat_~d~0.offset Supporting invariants [] [2021-10-15 19:34:49,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:49,033 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-10-15 19:34:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:34:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:49,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:34:49,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:34:49,146 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:34:49,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:34:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:34:49,177 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 [2021-10-15 19:34:49,177 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-10-15 19:34:49,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 46 states and 60 transitions. Complement of second has 7 states. [2021-10-15 19:34:49,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-15 19:34:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-10-15 19:34:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-10-15 19:34:49,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-15 19:34:49,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:49,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-15 19:34:49,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:49,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-15 19:34:49,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:34:49,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 60 transitions. [2021-10-15 19:34:49,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:34:49,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2021-10-15 19:34:49,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:34:49,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:34:49,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:34:49,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:34:49,233 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:34:49,233 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:34:49,233 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:34:49,234 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-15 19:34:49,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:34:49,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:34:49,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:34:49,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:34:49 BoogieIcfgContainer [2021-10-15 19:34:49,242 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:34:49,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:34:49,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:34:49,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:34:49,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:34:37" (3/4) ... [2021-10-15 19:34:49,246 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:34:49,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:34:49,248 INFO L168 Benchmark]: Toolchain (without parser) took 12479.26 ms. Allocated memory was 86.0 MB in the beginning and 176.2 MB in the end (delta: 90.2 MB). Free memory was 49.5 MB in the beginning and 115.9 MB in the end (delta: -66.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,248 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:34:49,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.45 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 49.3 MB in the beginning and 88.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.22 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 86.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,250 INFO L168 Benchmark]: Boogie Preprocessor took 57.57 ms. Allocated memory is still 119.5 MB. Free memory was 86.8 MB in the beginning and 85.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,250 INFO L168 Benchmark]: RCFGBuilder took 421.64 ms. Allocated memory is still 119.5 MB. Free memory was 85.3 MB in the beginning and 73.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,251 INFO L168 Benchmark]: BuchiAutomizer took 11354.33 ms. Allocated memory was 119.5 MB in the beginning and 176.2 MB in the end (delta: 56.6 MB). Free memory was 73.6 MB in the beginning and 116.9 MB in the end (delta: -43.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,251 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 176.2 MB. Free memory was 116.9 MB in the beginning and 115.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:34:49,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 562.45 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 49.3 MB in the beginning and 88.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.22 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 86.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.57 ms. Allocated memory is still 119.5 MB. Free memory was 86.8 MB in the beginning and 85.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.64 ms. Allocated memory is still 119.5 MB. Free memory was 85.3 MB in the beginning and 73.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11354.33 ms. Allocated memory was 119.5 MB in the beginning and 176.2 MB in the end (delta: 56.6 MB). Free memory was 73.6 MB in the beginning and 116.9 MB in the end (delta: -43.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 176.2 MB. Free memory was 116.9 MB in the beginning and 115.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * d and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 9.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 28.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 121 SDtfs, 359 SDslu, 245 SDs, 0 SdLazy, 212 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 284.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital179 mio100 ax110 hnf99 lsp85 ukn74 mio100 lsp60 div111 bol100 ite100 ukn100 eq165 hnf86 smp98 dnf100 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:34:49,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:49,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-15 19:34:49,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:34:49,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2c867b-29a9-41e8-9e84-82e1224cb23f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...