./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/stty-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/stty-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d38223b1f504bc750ab859e67d04c045d8443c177bea84276233ee5838153925 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:04:49,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:04:49,630 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2024-12-06 04:04:49,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:04:49,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:04:49,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:04:49,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:04:49,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:04:49,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:04:49,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:04:49,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:04:49,655 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 04:04:49,655 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:04:49,656 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:04:49,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:04:49,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:04:49,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:04:49,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:04:49,657 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:04:49,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:04:49,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak 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 -> d38223b1f504bc750ab859e67d04c045d8443c177bea84276233ee5838153925 [2024-12-06 04:04:49,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:04:49,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:04:49,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:04:49,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:04:49,901 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:04:49,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/busybox-1.22.0/stty-3.i [2024-12-06 04:04:52,506 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/data/a56c7158c/1c244ccf1d0742bcb3fb5595fa6a6da5/FLAGc7e2184c9 [2024-12-06 04:04:52,903 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:04:52,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/sv-benchmarks/c/busybox-1.22.0/stty-3.i [2024-12-06 04:04:52,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/data/a56c7158c/1c244ccf1d0742bcb3fb5595fa6a6da5/FLAGc7e2184c9 [2024-12-06 04:04:53,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/data/a56c7158c/1c244ccf1d0742bcb3fb5595fa6a6da5 [2024-12-06 04:04:53,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:04:53,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:04:53,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:04:53,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:04:53,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:04:53,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:04:53" (1/1) ... [2024-12-06 04:04:53,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da0d6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:53, skipping insertion in model container [2024-12-06 04:04:53,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:04:53" (1/1) ... [2024-12-06 04:04:53,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:04:54,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:04:54,991 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:04:55,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:04:55,634 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-12-06 04:04:55,641 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:04:55,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55 WrapperNode [2024-12-06 04:04:55,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:04:55,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:04:55,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:04:55,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:04:55,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:55,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:56,395 INFO L138 Inliner]: procedures = 675, calls = 10743, calls flagged for inlining = 186, calls inlined = 920, statements flattened = 32103 [2024-12-06 04:04:56,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:04:56,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:04:56,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:04:56,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:04:56,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:56,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:56,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:56,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:04:57,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:04:57,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:04:57,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:04:57,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:04:55" (1/1) ... [2024-12-06 04:04:57,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:04:57,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:04:57,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:04:57,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cf9b45-4ffb-4b86-ac6d-f4716d84e5e0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:04:57,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 04:04:57,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-12-06 04:04:57,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:04:57,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 04:04:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:04:58,160 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:04:58,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:10:10,145 INFO L? ?]: Removed 20499 outVars from TransFormulas that were not future-live. [2024-12-06 04:10:10,145 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:10:29,406 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:10:29,406 INFO L312 CfgBuilder]: Removed 421 assume(true) statements. [2024-12-06 04:10:29,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:10:29 BoogieIcfgContainer [2024-12-06 04:10:29,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:10:29,407 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:10:29,407 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:10:29,418 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:10:29,418 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:10:29" (1/1) ... [2024-12-06 04:10:29,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:10:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:10:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15586 states to 13749 states and 15586 transitions. [2024-12-06 04:10:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 13749 states and 15586 transitions. [2024-12-06 04:10:29,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-12-06 04:10:29,579 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:10:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms