./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strlen.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strlen.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 34b0c24ca65344579aaae251146dead1808e12ac6f6737a3aee037d4f6e47452 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:16,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:16,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:12:16,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:16,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:16,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:16,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:16,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:16,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:16,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:16,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:16,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:16,569 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:16,569 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:12:16,571 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:12:16,572 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:12:16,572 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:12:16,573 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:12:16,573 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:12:16,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:16,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:12:16,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:16,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:16,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:12:16,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:12:16,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:12:16,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:16,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:16,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:16,580 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:12:16,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:16,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:16,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:16,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:16,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:16,583 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:12:16,583 INFO L153 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_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b0c24ca65344579aaae251146dead1808e12ac6f6737a3aee037d4f6e47452 [2024-10-31 22:12:16,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:16,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:16,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:16,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:16,908 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:16,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-dietlibc/strlen.i Unable to find full path for "g++" [2024-10-31 22:12:18,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:19,257 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:19,258 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/sv-benchmarks/c/termination-dietlibc/strlen.i [2024-10-31 22:12:19,272 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/data/323b4a57a/dbe4ccfcfca54df7a9100ff0bba696b0/FLAGdc99df2cf [2024-10-31 22:12:19,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/data/323b4a57a/dbe4ccfcfca54df7a9100ff0bba696b0 [2024-10-31 22:12:19,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:19,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:19,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:19,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:19,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:19,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630b6496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19, skipping insertion in model container [2024-10-31 22:12:19,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:19,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:19,861 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:19,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:19,938 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:19,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19 WrapperNode [2024-10-31 22:12:19,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:19,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:19,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:19,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:19,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,981 INFO L138 Inliner]: procedures = 113, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-10-31 22:12:19,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:19,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:19,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:19,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:19,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,013 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-10-31 22:12:20,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:20,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:20,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:20,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:20,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:20,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:20,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:20,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:20,187 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:20,190 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:20,358 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:20,358 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:20,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:20,375 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:12:20,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:20 BoogieIcfgContainer [2024-10-31 22:12:20,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:20,377 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:12:20,377 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:12:20,381 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:12:20,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:20,382 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:12:19" (1/3) ... [2024-10-31 22:12:20,385 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7639ad11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:12:20, skipping insertion in model container [2024-10-31 22:12:20,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:20,386 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (2/3) ... [2024-10-31 22:12:20,386 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7639ad11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:12:20, skipping insertion in model container [2024-10-31 22:12:20,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:20,386 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:20" (3/3) ... [2024-10-31 22:12:20,388 INFO L332 chiAutomizerObserver]: Analyzing ICFG strlen.i [2024-10-31 22:12:20,464 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:12:20,465 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:12:20,465 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:12:20,465 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:12:20,466 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:12:20,466 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:12:20,466 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:12:20,466 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:12:20,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:20,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:12:20,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:20,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:20,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:12:20,507 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:12:20,507 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:12:20,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:20,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:12:20,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:20,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:20,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:12:20,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:12:20,522 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~ret7#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset;havoc main_#t~nondet5#1;main_~in_len~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4#L514true assume !(main_~in_len~0#1 < 1);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;call write~int#0(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset;havoc strlen_#res#1;havoc strlen_#t~mem2#1, strlen_#t~pre3#1, strlen_#t~pre4#1.base, strlen_#t~pre4#1.offset, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 9#L508true assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 6#L509-4true [2024-10-31 22:12:20,522 INFO L747 eck$LassoCheckResult]: Loop: 6#L509-4true call strlen_#t~mem2#1 := read~int#0(strlen_~s#1.base, strlen_~s#1.offset, 1); 11#L509-1true assume !!(0 != strlen_#t~mem2#1);havoc strlen_#t~mem2#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1; 5#L509-3true strlen_#t~pre4#1.base, strlen_#t~pre4#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre4#1.base, strlen_#t~pre4#1.offset; 6#L509-4true [2024-10-31 22:12:20,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:20,532 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-31 22:12:20,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:20,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486994997] [2024-10-31 22:12:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:20,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:20,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:20,815 INFO L85 PathProgramCache]: Analyzing trace with hash 45841, now seen corresponding path program 1 times [2024-10-31 22:12:20,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:20,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318806423] [2024-10-31 22:12:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:20,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:20,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:20,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1806906826, now seen corresponding path program 1 times [2024-10-31 22:12:20,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:20,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695575668] [2024-10-31 22:12:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:20,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:20,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:21,552 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:12:21,553 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:12:21,553 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:12:21,553 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:12:21,553 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:12:21,554 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:21,554 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:12:21,554 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:12:21,554 INFO L132 ssoRankerPreferences]: Filename of dumped script: strlen.i_Iteration1_Lasso [2024-10-31 22:12:21,554 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:12:21,555 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:12:21,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:21,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:22,124 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:12:22,129 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:12:22,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:12:22,137 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 [2024-10-31 22:12:22,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:22,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:22,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:22,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:22,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:22,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:22,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:22,159 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:22,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:12:22,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:12:22,184 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 [2024-10-31 22:12:22,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:22,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:22,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:22,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:22,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:22,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:22,218 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:22,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:12:22,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,241 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:12:22,244 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 [2024-10-31 22:12:22,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:22,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:22,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:22,259 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:12:22,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:22,261 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:12:22,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:22,269 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:22,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:12:22,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:12:22,294 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 [2024-10-31 22:12:22,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:22,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:22,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:22,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:22,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:22,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:22,321 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:22,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:12:22,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:12:22,347 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 [2024-10-31 22:12:22,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:22,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:22,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:22,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:22,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:22,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:22,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:12:22,448 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-10-31 22:12:22,449 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2024-10-31 22:12:22,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:22,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:22,475 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:22,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:12:22,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:12:22,518 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:12:22,518 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:12:22,519 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1, ULTIMATE.start_strlen_~s#1.offset) = 1*v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1 - 1*ULTIMATE.start_strlen_~s#1.offset Supporting invariants [] [2024-10-31 22:12:22,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:12:22,575 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-10-31 22:12:22,585 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s!offset [2024-10-31 22:12:22,586 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 22:12:22,587 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-31 22:12:22,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:22,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:22,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:22,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:12:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:22,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:12:22,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:22,889 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:12:22,891 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-10-31 22:12:22,966 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 26 states and 29 transitions. Complement of second has 6 states. [2024-10-31 22:12:22,973 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 [2024-10-31 22:12:22,980 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) [2024-10-31 22:12:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-31 22:12:22,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-31 22:12:22,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:22,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:12:22,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:22,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-31 22:12:22,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:22,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2024-10-31 22:12:22,988 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:12:22,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2024-10-31 22:12:22,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:12:22,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:12:22,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:12:22,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:22,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:22,994 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:22,994 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:22,995 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:12:22,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:12:22,995 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:12:22,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:12:23,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:12:23 BoogieIcfgContainer [2024-10-31 22:12:23,007 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:12:23,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:23,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:23,008 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:23,008 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:20" (3/4) ... [2024-10-31 22:12:23,015 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:12:23,016 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:23,017 INFO L158 Benchmark]: Toolchain (without parser) took 3556.64ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 90.6MB in the beginning and 140.4MB in the end (delta: -49.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:23,018 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:23,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.56ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 72.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:12:23,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.87ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:23,020 INFO L158 Benchmark]: Boogie Preprocessor took 42.80ms. Allocated memory is still 123.7MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:23,021 INFO L158 Benchmark]: RCFGBuilder took 349.34ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 57.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:12:23,021 INFO L158 Benchmark]: BuchiAutomizer took 2630.30ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 57.6MB in the beginning and 141.4MB in the end (delta: -83.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:23,022 INFO L158 Benchmark]: Witness Printer took 8.79ms. Allocated memory is still 182.5MB. Free memory was 141.4MB in the beginning and 140.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:23,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.56ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 72.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.87ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.80ms. Allocated memory is still 123.7MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.34ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 57.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2630.30ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 57.6MB in the beginning and 141.4MB in the end (delta: -83.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.79ms. Allocated memory is still 182.5MB. Free memory was 141.4MB in the beginning and 140.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] * 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 null and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital114 mio100 ax100 hnf100 lsp92 ukn77 mio100 lsp48 div100 bol100 ite100 ukn100 eq154 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:12:23,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fe45bc-5d61-4f77-9c42-50719e7f10c6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE