./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF --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 fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:07:44,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:07:44,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:07:44,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:07:44,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:07:44,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:07:44,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:07:44,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:07:44,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:07:44,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:07:44,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:07:44,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:07:44,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:07:44,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:07:44,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:07:44,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:07:44,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:07:44,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:07:44,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:07:44,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:07:44,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:07:44,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:07:44,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:07:44,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:07:44,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:07:44,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:07:44,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:07:44,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:07:44,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:07:44,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:07:44,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:07:44,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:07:44,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:07:44,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:07:44,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:07:44,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:07:44,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:07:44,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:07:44,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:07:44,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:07:44,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:07:44,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:07:44,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:07:44,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:07:44,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:07:44,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:07:44,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:07:44,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:07:44,374 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:07:44,374 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:07:44,374 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:07:44,374 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:07:44,375 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:07:44,375 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:07:44,375 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:07:44,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:07:44,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:07:44,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:07:44,377 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:07:44,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:07:44,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:07:44,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:07:44,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:07:44,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:07:44,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:07:44,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:07:44,379 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:07:44,379 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_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 [2021-11-20 07:07:44,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:07:44,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:07:44,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:07:44,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:07:44,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:07:44,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2021-11-20 07:07:44,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/data/726dcd3b0/1336023445284c77b2c5b47c5a5afa8c/FLAG76757e513 [2021-11-20 07:07:45,354 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:07:45,355 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2021-11-20 07:07:45,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/data/726dcd3b0/1336023445284c77b2c5b47c5a5afa8c/FLAG76757e513 [2021-11-20 07:07:45,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/data/726dcd3b0/1336023445284c77b2c5b47c5a5afa8c [2021-11-20 07:07:45,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:07:45,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:07:45,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:07:45,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:07:45,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:07:45,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:07:45" (1/1) ... [2021-11-20 07:07:45,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb48c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:45, skipping insertion in model container [2021-11-20 07:07:45,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:07:45" (1/1) ... [2021-11-20 07:07:45,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:07:45,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:07:46,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:07:46,049 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:07:46,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:07:46,155 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:07:46,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46 WrapperNode [2021-11-20 07:07:46,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:07:46,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:07:46,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:07:46,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:07:46,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,209 INFO L137 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-20 07:07:46,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:07:46,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:07:46,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:07:46,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:07:46,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:07:46,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:07:46,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:07:46,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:07:46,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (1/1) ... [2021-11-20 07:07:46,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:46,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:46,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:46,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:07:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:07:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:07:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:07:46,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:07:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:07:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:07:46,483 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:07:46,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:07:46,620 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:07:46,625 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:07:46,625 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:07:46,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:07:46 BoogieIcfgContainer [2021-11-20 07:07:46,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:07:46,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:07:46,628 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:07:46,632 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:07:46,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:07:46,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:07:45" (1/3) ... [2021-11-20 07:07:46,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab6815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:07:46, skipping insertion in model container [2021-11-20 07:07:46,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:07:46,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:07:46" (2/3) ... [2021-11-20 07:07:46,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aab6815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:07:46, skipping insertion in model container [2021-11-20 07:07:46,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:07:46,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:07:46" (3/3) ... [2021-11-20 07:07:46,636 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca-2.i [2021-11-20 07:07:46,709 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:07:46,709 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:07:46,709 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:07:46,709 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:07:46,709 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:07:46,710 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:07:46,710 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:07:46,710 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:07:46,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:07:46,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:07:46,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:07:46,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:07:46,752 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 07:07:46,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:07:46,753 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:07:46,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:07:46,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:07:46,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:07:46,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:07:46,755 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 07:07:46,755 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:07:46,762 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 8#L557true assume !(main_~length1~0#1 < 1); 7#L557-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset, cstrlen_#t~mem3#1, cstrlen_~str#1.base, cstrlen_~str#1.offset, cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~str#1.base, cstrlen_~str#1.offset := cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset;havoc cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~str#1.base, cstrlen_~str#1.offset; 13#L551-4true [2021-11-20 07:07:46,763 INFO L793 eck$LassoCheckResult]: Loop: 13#L551-4true call cstrlen_#t~mem3#1 := read~int(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1); 9#L551-1true assume !!(0 != cstrlen_#t~mem3#1);havoc cstrlen_#t~mem3#1; 10#L551-3true cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset; 13#L551-4true [2021-11-20 07:07:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:07:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-11-20 07:07:46,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:07:46,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801456505] [2021-11-20 07:07:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:07:46,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:07:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:46,869 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:07:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:46,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:07:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:07:46,909 INFO L85 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 1 times [2021-11-20 07:07:46,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:07:46,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200426313] [2021-11-20 07:07:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:07:46,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:07:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:46,921 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:07:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:46,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:07:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:07:46,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1806814474, now seen corresponding path program 1 times [2021-11-20 07:07:46,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:07:46,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888696823] [2021-11-20 07:07:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:07:46,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:07:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:46,983 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:07:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:07:47,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:07:47,473 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:07:47,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:07:47,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:07:47,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:07:47,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:07:47,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:47,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:07:47,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:07:47,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-2.i_Iteration1_Lasso [2021-11-20 07:07:47,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:07:47,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:07:47,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:47,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:07:48,077 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:07:48,082 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:07:48,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:07:48,100 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 [2021-11-20 07:07:48,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:07:48,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:07:48,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:07:48,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-20 07:07:48,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,166 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 [2021-11-20 07:07:48,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:07:48,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:07:48,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:07:48,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:07:48,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-20 07:07:48,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:07:48,221 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 [2021-11-20 07:07:48,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:07:48,301 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 [2021-11-20 07:07:48,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:07:48,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:07:48,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:07:48,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,339 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:07:48,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:07:48,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:07:48,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:07:48,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:07:48,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,419 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 [2021-11-20 07:07:48,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:07:48,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,495 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 [2021-11-20 07:07:48,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:07:48,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:07:48,557 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 [2021-11-20 07:07:48,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,632 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:07:48,635 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 [2021-11-20 07:07:48,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,699 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:07:48,700 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 [2021-11-20 07:07:48,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:07:48,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,708 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:07:48,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,709 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:07:48,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:07:48,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:07:48,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,761 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,771 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 [2021-11-20 07:07:48,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:07:48,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:07:48,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:07:48,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:07:48,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:07:48,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:07:48,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:07:48,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:07:48,832 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-20 07:07:48,833 INFO L444 ModelExtractionUtils]: 22 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-11-20 07:07:48,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:07:48,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:07:48,839 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:07:48,863 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:07:48,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:07:48,907 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 07:07:48,907 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:07:48,908 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrlen_~s~0#1.base)_1, ULTIMATE.start_cstrlen_~s~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_cstrlen_~s~0#1.base)_1 - 1*ULTIMATE.start_cstrlen_~s~0#1.offset Supporting invariants [] [2021-11-20 07:07:48,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:48,968 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-11-20 07:07:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:07:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:07:49,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:07:49,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:07:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:07:49,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 07:07:49,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:07:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:07:49,149 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 [2021-11-20 07:07:49,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:07:49,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 28 transitions. Complement of second has 5 states. [2021-11-20 07:07:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:07:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:07:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-20 07:07:49,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-20 07:07:49,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:07:49,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-20 07:07:49,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:07:49,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-20 07:07:49,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:07:49,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2021-11-20 07:07:49,246 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:07:49,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2021-11-20 07:07:49,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:07:49,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:07:49,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:07:49,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:07:49,249 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:07:49,249 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:07:49,250 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:07:49,250 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:07:49,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:07:49,250 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:07:49,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:07:49,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:07:49,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:07:49 BoogieIcfgContainer [2021-11-20 07:07:49,266 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:07:49,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:07:49,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:07:49,270 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:07:49,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:07:46" (3/4) ... [2021-11-20 07:07:49,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:07:49,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:07:49,275 INFO L158 Benchmark]: Toolchain (without parser) took 3597.58ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 77.9MB in the beginning and 115.5MB in the end (delta: -37.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:07:49,275 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:07:49,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.34ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 87.5MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:07:49,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.82ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:07:49,277 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 84.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:07:49,277 INFO L158 Benchmark]: RCFGBuilder took 383.57ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 75.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:07:49,278 INFO L158 Benchmark]: BuchiAutomizer took 2638.18ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 74.5MB in the beginning and 115.5MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:07:49,279 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 144.7MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:07:49,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.34ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 87.5MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.82ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 84.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.57ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 75.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2638.18ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 74.5MB in the beginning and 115.5MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 144.7MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax115 hnf100 lsp81 ukn95 mio100 lsp46 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 07:07:49,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed1eb90-4eeb-44d0-a399-f29ef49b1637/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE