./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 475c55af8223c9a32959cab18313111543780f4e37aae19089bc5e981127ec42 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:55:50,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:55:50,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:55:50,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:55:50,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:55:50,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:55:50,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:55:50,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:55:50,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:55:50,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:55:50,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:55:50,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:55:50,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:55:50,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:55:50,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:55:50,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:55:50,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:55:50,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:55:50,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:55:50,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:55:50,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:55:50,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:55:50,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:55:50,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:55:50,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:55:50,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:55:50,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:55:50,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:55:50,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:55:50,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:55:50,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:55:50,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:55:50,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:55:50,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:55:50,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:55:50,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:55:50,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:55:50,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:55:50,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:55:50,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:55:50,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:55:50,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:55:50,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:55:50,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:55:50,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:55:50,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:55:50,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:55:50,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:55:50,516 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:55:50,516 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:55:50,516 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:55:50,516 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:55:50,517 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:55:50,517 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:55:50,517 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:55:50,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:55:50,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:55:50,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:55:50,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:55:50,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:55:50,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:55:50,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:55:50,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:55:50,520 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:55:50,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:55:50,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:55:50,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:55:50,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:55:50,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:55:50,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:55:50,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:55:50,523 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:55:50,523 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_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c55af8223c9a32959cab18313111543780f4e37aae19089bc5e981127ec42 [2021-10-21 19:55:50,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:55:50,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:55:50,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:55:50,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:55:50,827 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:55:50,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2021-10-21 19:55:50,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/data/bff3f7cce/24023046d31042689507dea29da55ef8/FLAG4028c8740 [2021-10-21 19:55:51,335 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:55:51,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2021-10-21 19:55:51,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/data/bff3f7cce/24023046d31042689507dea29da55ef8/FLAG4028c8740 [2021-10-21 19:55:51,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/data/bff3f7cce/24023046d31042689507dea29da55ef8 [2021-10-21 19:55:51,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:55:51,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:55:51,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:55:51,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:55:51,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:55:51,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:51,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650225a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51, skipping insertion in model container [2021-10-21 19:55:51,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:51,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:55:51,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:55:51,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:55:51,924 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:55:51,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:55:51,967 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:55:51,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51 WrapperNode [2021-10-21 19:55:51,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:55:51,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:55:51,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:55:51,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:55:51,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:51,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:55:52,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:55:52,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:55:52,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:55:52,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:55:52,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:55:52,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:55:52,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:55:52,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (1/1) ... [2021-10-21 19:55:52,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:52,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:52,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:55:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:55:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:55:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:55:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:55:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:55:52,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:55:52,428 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:55:52,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:55:52 BoogieIcfgContainer [2021-10-21 19:55:52,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:55:52,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:55:52,431 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:55:52,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:55:52,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:55:52,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:55:51" (1/3) ... [2021-10-21 19:55:52,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d980090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:55:52, skipping insertion in model container [2021-10-21 19:55:52,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:55:52,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:55:51" (2/3) ... [2021-10-21 19:55:52,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d980090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:55:52, skipping insertion in model container [2021-10-21 19:55:52,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:55:52,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:55:52" (3/3) ... [2021-10-21 19:55:52,439 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcspn.c [2021-10-21 19:55:52,531 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:55:52,532 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:55:52,532 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:55:52,532 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:55:52,532 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:55:52,532 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:55:52,532 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:55:52,533 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:55:52,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:52,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-21 19:55:52,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:52,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:52,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:52,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:55:52,624 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:55:52,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:52,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-21 19:55:52,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:52,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:52,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:52,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:55:52,655 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 9#L14true assume !(build_nondet_String_~length~0 < 1); 19#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 17#L19true main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 11#L14-3true assume build_nondet_String_~length~0 < 1;build_nondet_String_~length~0 := 1; 15#L14-5true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 7#L19-1true main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 20#L30-4true [2021-10-21 19:55:52,656 INFO L793 eck$LassoCheckResult]: Loop: 20#L30-4true call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 12#L30-1true assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 14#L33-5true assume !true; 13#L33-6true call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 22#L35true assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 21#L30-3true cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 20#L30-4true [2021-10-21 19:55:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:52,671 INFO L82 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 1 times [2021-10-21 19:55:52,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:52,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531822984] [2021-10-21 19:55:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:52,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:52,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:52,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:52,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:52,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1602834410, now seen corresponding path program 1 times [2021-10-21 19:55:52,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:52,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120271519] [2021-10-21 19:55:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:52,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:53,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:53,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120271519] [2021-10-21 19:55:53,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120271519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:55:53,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:55:53,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:55:53,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449255224] [2021-10-21 19:55:53,015 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:55:53,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:55:53,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:55:53,032 INFO L87 Difference]: Start difference. First operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:53,039 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-10-21 19:55:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:55:53,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-10-21 19:55:53,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-21 19:55:53,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 20 transitions. [2021-10-21 19:55:53,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-21 19:55:53,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-21 19:55:53,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2021-10-21 19:55:53,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:55:53,050 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-21 19:55:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2021-10-21 19:55:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 19:55:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-21 19:55:53,078 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-21 19:55:53,079 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-21 19:55:53,079 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:55:53,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-10-21 19:55:53,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-21 19:55:53,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:53,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:53,081 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:53,081 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:53,082 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 51#L-1 havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 56#L14 assume !(build_nondet_String_~length~0 < 1); 57#L14-2 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 64#L19 main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 58#L14-3 assume build_nondet_String_~length~0 < 1;build_nondet_String_~length~0 := 1; 59#L14-5 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 54#L19-1 main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 55#L30-4 [2021-10-21 19:55:53,082 INFO L793 eck$LassoCheckResult]: Loop: 55#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 60#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 61#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 52#L33-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 53#L33-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 62#L33-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 63#L35 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 65#L30-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 55#L30-4 [2021-10-21 19:55:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:53,083 INFO L82 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 2 times [2021-10-21 19:55:53,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:53,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622158911] [2021-10-21 19:55:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:53,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:53,106 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:53,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:53,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1952985167, now seen corresponding path program 1 times [2021-10-21 19:55:53,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:53,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080602252] [2021-10-21 19:55:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:53,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:53,149 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:53,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash -955886854, now seen corresponding path program 1 times [2021-10-21 19:55:53,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:53,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908490855] [2021-10-21 19:55:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:53,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:53,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:53,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908490855] [2021-10-21 19:55:53,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908490855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:55:53,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:55:53,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:55:53,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835447293] [2021-10-21 19:55:53,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:53,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:55:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:55:53,815 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:54,064 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-10-21 19:55:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:55:54,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 35 transitions. [2021-10-21 19:55:54,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-10-21 19:55:54,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 35 transitions. [2021-10-21 19:55:54,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-21 19:55:54,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-21 19:55:54,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2021-10-21 19:55:54,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:55:54,077 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-10-21 19:55:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2021-10-21 19:55:54,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-10-21 19:55:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 26 states have internal predecessors, (31), 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) [2021-10-21 19:55:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-10-21 19:55:54,086 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-21 19:55:54,087 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-21 19:55:54,087 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:55:54,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 31 transitions. [2021-10-21 19:55:54,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-10-21 19:55:54,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:54,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:54,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:54,095 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:54,095 INFO L791 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 119#L-1 havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 124#L14 assume !(build_nondet_String_~length~0 < 1); 125#L14-2 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 135#L19 main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 126#L14-3 assume !(build_nondet_String_~length~0 < 1); 127#L14-5 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 142#L19-1 main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 141#L30-4 [2021-10-21 19:55:54,095 INFO L793 eck$LassoCheckResult]: Loop: 141#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 140#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 133#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 134#L33-1 assume !cstrcspn_#t~short7; 136#L33-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 137#L33-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 144#L35 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 143#L30-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 141#L30-4 [2021-10-21 19:55:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:54,096 INFO L82 PathProgramCache]: Analyzing trace with hash 176612300, now seen corresponding path program 1 times [2021-10-21 19:55:54,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:54,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701187468] [2021-10-21 19:55:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:54,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,149 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:54,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1951138125, now seen corresponding path program 1 times [2021-10-21 19:55:54,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:54,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597660244] [2021-10-21 19:55:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:54,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,189 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:54,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:54,197 INFO L82 PathProgramCache]: Analyzing trace with hash -252975234, now seen corresponding path program 1 times [2021-10-21 19:55:54,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:54,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266447681] [2021-10-21 19:55:54,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:54,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,221 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:54,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:55,115 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:55:55,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:55:55,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:55:55,117 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:55:55,117 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:55:55,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:55,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:55:55,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:55:55,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn.c_Iteration3_Lasso [2021-10-21 19:55:55,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:55:55,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:55:55,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:55,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:56,235 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:55:56,239 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:55:56,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,256 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 [2021-10-21 19:55:56,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:55:56,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,327 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:56,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:55:56,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,401 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,408 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 [2021-10-21 19:55:56,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:55:56,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,491 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 [2021-10-21 19:55:56,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:55:56,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:56,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:56,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,576 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 [2021-10-21 19:55:56,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:55:56,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,654 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 [2021-10-21 19:55:56,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:55:56,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:55:56,740 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 [2021-10-21 19:55:56,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:56,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:56,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:55:56,820 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 [2021-10-21 19:55:56,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,887 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 [2021-10-21 19:55:56,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:55:56,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,949 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,955 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 [2021-10-21 19:55:56,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:56,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:56,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:56,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:56,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:56,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:56,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:56,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:55:56,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:56,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:56,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:56,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:56,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:56,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:55:56,996 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 [2021-10-21 19:55:57,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:57,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:57,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:57,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:57,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:57,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:57,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:57,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:57,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:57,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:57,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:57,040 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:57,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:55:57,044 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 [2021-10-21 19:55:57,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:57,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:57,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:57,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:57,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:57,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:57,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:57,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:57,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:57,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:57,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:57,080 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:57,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:55:57,082 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 [2021-10-21 19:55:57,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:57,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:57,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:57,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:57,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:57,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:57,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:57,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:57,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 19:55:57,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:57,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:57,116 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:57,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:55:57,127 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 [2021-10-21 19:55:57,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:57,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:57,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:57,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:57,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:57,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:57,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:57,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:57,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:57,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:57,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:57,162 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:57,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:55:57,166 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 [2021-10-21 19:55:57,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:57,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:57,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:57,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:57,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:57,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:57,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:55:57,253 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-21 19:55:57,254 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-21 19:55:57,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:57,272 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:57,315 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:55:57,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:55:57,340 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:55:57,340 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:55:57,341 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_#t~ret10.base)_1) = -1*ULTIMATE.start_cstrcspn_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~ret10.base)_1 Supporting invariants [] [2021-10-21 19:55:57,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:57,390 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-10-21 19:55:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:57,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:55:57,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:57,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:55:57,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:57,572 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 [2021-10-21 19:55:57,573 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:57,625 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 52 transitions. Complement of second has 4 states. [2021-10-21 19:55:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:55:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-10-21 19:55:57,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-21 19:55:57,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:57,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 16 letters. Loop has 8 letters. [2021-10-21 19:55:57,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:57,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 16 letters. [2021-10-21 19:55:57,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:57,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 52 transitions. [2021-10-21 19:55:57,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:57,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 22 states and 27 transitions. [2021-10-21 19:55:57,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-21 19:55:57,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-21 19:55:57,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2021-10-21 19:55:57,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:57,632 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-21 19:55:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2021-10-21 19:55:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-21 19:55:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 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) [2021-10-21 19:55:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-21 19:55:57,635 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-21 19:55:57,635 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-21 19:55:57,635 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:55:57,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-21 19:55:57,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:57,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:57,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:57,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:57,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:57,637 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 295#L14 assume !(build_nondet_String_~length~0 < 1); 296#L14-2 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 305#L19 main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 297#L14-3 assume !(build_nondet_String_~length~0 < 1); 298#L14-5 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 293#L19-1 main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 294#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 299#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 300#L33-5 [2021-10-21 19:55:57,637 INFO L793 eck$LassoCheckResult]: Loop: 300#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 288#L33-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 289#L33-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 300#L33-5 [2021-10-21 19:55:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:57,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2074270767, now seen corresponding path program 1 times [2021-10-21 19:55:57,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:57,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291927318] [2021-10-21 19:55:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:57,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,655 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:57,673 INFO L82 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 1 times [2021-10-21 19:55:57,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:57,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177224284] [2021-10-21 19:55:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:57,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,679 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:57,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:57,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1389069017, now seen corresponding path program 1 times [2021-10-21 19:55:57,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:57,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678913723] [2021-10-21 19:55:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:57,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,704 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:57,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:58,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:58,630 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:55:58,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:55:58,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:55:58,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:55:58,631 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:55:58,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:58,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:55:58,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:55:58,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn.c_Iteration4_Lasso [2021-10-21 19:55:58,631 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:55:58,631 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:55:58,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:58,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:59,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:59,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:59,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:55:59,951 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:55:59,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:59,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:59,980 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:59,985 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 [2021-10-21 19:55:59,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:59,995 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 19:55:59,995 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-10-21 19:55:59,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:56:00,055 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2021-10-21 19:56:00,056 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-10-21 19:56:00,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:00,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,230 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:56:00,235 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 [2021-10-21 19:56:00,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:00,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:00,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:00,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:00,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:00,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:00,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,297 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:56:00,306 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 [2021-10-21 19:56:00,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:00,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:00,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:00,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:00,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:00,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:00,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,371 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,386 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 [2021-10-21 19:56:00,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:00,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:00,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:00,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:00,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:00,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:56:00,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:00,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,444 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,446 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 [2021-10-21 19:56:00,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:00,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:00,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:00,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:56:00,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:00,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:00,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:00,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,516 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,518 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 [2021-10-21 19:56:00,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:00,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:00,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:00,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:00,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:00,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:00,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:56:00,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:56:00,603 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-21 19:56:00,603 INFO L444 ModelExtractionUtils]: 38 out of 46 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-21 19:56:00,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:00,620 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:00,635 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:56:00,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:56:00,658 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:56:00,658 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:56:00,658 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_2, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_2 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-10-21 19:56:00,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:00,700 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-21 19:56:00,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:00,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:56:00,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:00,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:56:00,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:00,856 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-21 19:56:00,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:00,923 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 59 transitions. Complement of second has 7 states. [2021-10-21 19:56:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:56:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-21 19:56:00,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 19:56:00,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:00,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-21 19:56:00,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:00,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 19:56:00,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:00,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 59 transitions. [2021-10-21 19:56:00,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:56:00,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 35 states and 42 transitions. [2021-10-21 19:56:00,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-21 19:56:00,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-21 19:56:00,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2021-10-21 19:56:00,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:56:00,928 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-21 19:56:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2021-10-21 19:56:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2021-10-21 19:56:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2021-10-21 19:56:00,931 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-10-21 19:56:00,931 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-10-21 19:56:00,931 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:56:00,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2021-10-21 19:56:00,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:56:00,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:00,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:00,932 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:00,932 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:56:00,933 INFO L791 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 462#L-1 havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 469#L14 assume !(build_nondet_String_~length~0 < 1); 470#L14-2 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 482#L19 main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 471#L14-3 assume !(build_nondet_String_~length~0 < 1); 472#L14-5 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 467#L19-1 main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 468#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 475#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 476#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 465#L33-1 assume !cstrcspn_#t~short7; 466#L33-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 477#L33-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 478#L35 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 483#L30-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 484#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 473#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 474#L33-5 [2021-10-21 19:56:00,933 INFO L793 eck$LassoCheckResult]: Loop: 474#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 463#L33-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 464#L33-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 474#L33-5 [2021-10-21 19:56:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:00,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1703936771, now seen corresponding path program 2 times [2021-10-21 19:56:00,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:00,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504785559] [2021-10-21 19:56:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:00,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:00,946 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:00,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:00,964 INFO L82 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 2 times [2021-10-21 19:56:00,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:00,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113717625] [2021-10-21 19:56:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:00,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:00,969 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:00,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:00,974 INFO L82 PathProgramCache]: Analyzing trace with hash -238092697, now seen corresponding path program 1 times [2021-10-21 19:56:00,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:00,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729516273] [2021-10-21 19:56:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:00,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:01,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:01,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729516273] [2021-10-21 19:56:01,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729516273] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:56:01,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781419190] [2021-10-21 19:56:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:01,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:56:01,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:01,077 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:56:01,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 19:56:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:01,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-21 19:56:01,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:01,210 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-21 19:56:01,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:01,704 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 19:56:01,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-21 19:56:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:01,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781419190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:56:01,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:56:01,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2021-10-21 19:56:01,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974606194] [2021-10-21 19:56:01,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:01,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:56:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:56:01,832 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 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) [2021-10-21 19:56:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:02,205 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2021-10-21 19:56:02,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:56:02,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 67 transitions. [2021-10-21 19:56:02,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:56:02,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 45 states and 54 transitions. [2021-10-21 19:56:02,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-21 19:56:02,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-21 19:56:02,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 54 transitions. [2021-10-21 19:56:02,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:56:02,208 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-21 19:56:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 54 transitions. [2021-10-21 19:56:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-21 19:56:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 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) [2021-10-21 19:56:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-21 19:56:02,211 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:56:02,211 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:56:02,211 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:56:02,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-21 19:56:02,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:56:02,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:02,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:02,214 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:02,214 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:56:02,214 INFO L791 eck$LassoCheckResult]: Stem: 638#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 639#L-1 havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 646#L14 assume !(build_nondet_String_~length~0 < 1); 647#L14-2 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 659#L19 main_#t~ret10.base, main_#t~ret10.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 648#L14-3 assume !(build_nondet_String_~length~0 < 1); 649#L14-5 call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 644#L19-1 main_#t~ret11.base, main_#t~ret11.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 645#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 660#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 665#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 642#L33-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 643#L33-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 654#L33-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 655#L35 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 662#L30-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 661#L30-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 650#L30-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 651#L33-5 [2021-10-21 19:56:02,215 INFO L793 eck$LassoCheckResult]: Loop: 651#L33-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 640#L33-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 641#L33-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 651#L33-5 [2021-10-21 19:56:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -71070591, now seen corresponding path program 1 times [2021-10-21 19:56:02,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:02,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724584820] [2021-10-21 19:56:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:02,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,252 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:02,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:02,253 INFO L82 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 3 times [2021-10-21 19:56:02,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:02,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600134416] [2021-10-21 19:56:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:02,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,258 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:02,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 154934313, now seen corresponding path program 1 times [2021-10-21 19:56:02,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:02,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895659817] [2021-10-21 19:56:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:02,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:02,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:03,616 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:56:03,616 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:56:03,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:56:03,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:56:03,616 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:56:03,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:03,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:56:03,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:56:03,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn.c_Iteration6_Lasso [2021-10-21 19:56:03,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:56:03,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:56:03,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:03,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:04,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:04,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:04,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:04,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:05,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:56:05,956 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:56:05,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:05,966 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:05,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:56:05,985 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 [2021-10-21 19:56:05,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:05,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:05,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:05,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:05,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:05,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:05,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,063 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,068 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 [2021-10-21 19:56:06,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:56:06,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 19:56:06,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,106 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:06,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:56:06,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,192 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,195 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 [2021-10-21 19:56:06,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:56:06,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,257 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:56:06,260 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 [2021-10-21 19:56:06,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-21 19:56:06,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,293 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:56:06,300 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 [2021-10-21 19:56:06,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,329 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:56:06,332 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 [2021-10-21 19:56:06,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,363 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:56:06,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:06,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 19:56:06,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,395 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:56:06,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:06,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 19:56:06,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,425 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:56:06,428 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 [2021-10-21 19:56:06,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,468 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,470 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 [2021-10-21 19:56:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:56:06,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,520 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,524 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 [2021-10-21 19:56:06,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:56:06,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,592 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,594 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 [2021-10-21 19:56:06,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:56:06,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,646 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:56:06,649 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 [2021-10-21 19:56:06,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:56:06,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:56:06,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:56:06,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,680 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:56:06,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:06,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,720 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:56:06,721 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 [2021-10-21 19:56:06,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,728 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-21 19:56:06,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,741 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:56:06,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-21 19:56:06,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,782 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:56:06,783 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 [2021-10-21 19:56:06,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,821 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:56:06,822 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 [2021-10-21 19:56:06,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-21 19:56:06,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,861 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,871 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 [2021-10-21 19:56:06,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:56:06,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:06,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:06,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,933 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,943 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 [2021-10-21 19:56:06,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:06,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:06,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:06,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:06,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:06,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:06,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:56:06,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:07,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:07,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:07,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:07,002 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:07,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:56:07,005 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 [2021-10-21 19:56:07,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:07,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:07,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:07,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:07,020 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:07,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:07,033 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:56:07,059 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-21 19:56:07,059 INFO L444 ModelExtractionUtils]: 25 out of 43 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-21 19:56:07,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:07,060 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:07,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:56:07,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:56:07,069 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:56:07,069 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:56:07,069 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_3, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0.base)_3 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-10-21 19:56:07,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:07,136 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2021-10-21 19:56:07,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:07,381 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-21 19:56:07,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:07,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 60 transitions. Complement of second has 7 states. [2021-10-21 19:56:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:56:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-21 19:56:07,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-21 19:56:07,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:07,454 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:56:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:07,649 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-21 19:56:07,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:07,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 60 transitions. Complement of second has 7 states. [2021-10-21 19:56:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:56:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-21 19:56:07,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-21 19:56:07,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:07,718 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:56:07,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:07,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:56:07,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:07,958 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-21 19:56:07,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:08,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 62 transitions. Complement of second has 6 states. [2021-10-21 19:56:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:56:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2021-10-21 19:56:08,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-21 19:56:08,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:08,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 21 letters. Loop has 3 letters. [2021-10-21 19:56:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 18 letters. Loop has 6 letters. [2021-10-21 19:56:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:08,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions. [2021-10-21 19:56:08,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:56:08,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2021-10-21 19:56:08,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:56:08,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:56:08,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:56:08,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:56:08,026 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:08,026 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:08,026 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:08,026 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:56:08,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:56:08,026 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:56:08,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:56:08,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:56:08 BoogieIcfgContainer [2021-10-21 19:56:08,031 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:56:08,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:56:08,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:56:08,032 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:56:08,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:55:52" (3/4) ... [2021-10-21 19:56:08,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:56:08,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:56:08,037 INFO L168 Benchmark]: Toolchain (without parser) took 16294.97 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 65.9 MB in the beginning and 56.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:08,037 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:08,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.01 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 65.3 MB in the end (delta: 572.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:08,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.86 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 63.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:08,038 INFO L168 Benchmark]: Boogie Preprocessor took 68.37 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 62.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:08,039 INFO L168 Benchmark]: RCFGBuilder took 332.87 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 51.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:08,039 INFO L168 Benchmark]: BuchiAutomizer took 15600.60 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 51.0 MB in the beginning and 56.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 64.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:08,040 INFO L168 Benchmark]: Witness Printer took 4.06 ms. Allocated memory is still 159.4 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:08,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.01 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 65.3 MB in the end (delta: 572.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.86 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 63.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.37 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 62.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 332.87 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 51.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 15600.60 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 51.0 MB in the beginning and 56.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 64.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.06 ms. Allocated memory is still 159.4 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[build_nondet_String()] and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 13.2s. Construction of modules took 0.3s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 29.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 128 SDtfs, 199 SDslu, 192 SDs, 0 SdLazy, 294 SolverSat, 60 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 322.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital262 mio100 ax100 hnf100 lsp102 ukn81 mio100 lsp34 div114 bol100 ite100 ukn100 eq183 hnf83 smp91 dnf846 smp51 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 240ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 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! [2021-10-21 19:56:08,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:08,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-21 19:56:08,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04811e65-a76b-46af-a2a0-b05d222deb56/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...