./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL --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 4596c37e8c0930116e1dcc299424b0e8a30fada1ea7b81d9a5b706e007716a10 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:55,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:55,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 02:51:55,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:51:55,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:51:55,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:55,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:55,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:55,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:55,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:51:55,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:55,705 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:51:55,705 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:51:55,706 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:51:55,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:55,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:55,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:55,708 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:55,709 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:55,709 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:55,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:55,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:55,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:55,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:55,713 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:51:55,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:51:55,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4596c37e8c0930116e1dcc299424b0e8a30fada1ea7b81d9a5b706e007716a10 [2023-11-19 02:51:55,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:56,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:56,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:56,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:56,038 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:56,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-3.i [2023-11-19 02:51:59,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:59,769 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:59,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/sv-benchmarks/c/busybox-1.22.0/ls-incomplete-3.i [2023-11-19 02:51:59,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/data/41463d2b6/2ba3593a23bb422493505828a031c661/FLAG316512422 [2023-11-19 02:51:59,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/data/41463d2b6/2ba3593a23bb422493505828a031c661 [2023-11-19 02:51:59,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:59,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:59,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:59,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:59,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:59,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:59" (1/1) ... [2023-11-19 02:51:59,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5ad2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:59, skipping insertion in model container [2023-11-19 02:51:59,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:59" (1/1) ... [2023-11-19 02:51:59,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:52:02,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:03,024 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:52:03,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:03,701 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,701 WARN L675 CHandler]: The function x2x_utoa is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,701 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,701 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,701 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,702 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,702 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,702 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,702 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,702 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,703 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,703 WARN L675 CHandler]: The function ctime is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,703 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:03,711 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:52:03,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03 WrapperNode [2023-11-19 02:52:03,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:03,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:03,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:52:03,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:52:03,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:03,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:04,929 INFO L138 Inliner]: procedures = 743, calls = 1282, calls flagged for inlining = 174, calls inlined = 1673, statements flattened = 43689 [2023-11-19 02:52:04,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:04,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:52:04,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:52:04,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:52:04,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:04,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:05,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:05,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:05,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:06,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:06,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:06,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:07,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:52:07,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:52:07,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:52:07,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:52:07,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:03" (1/1) ... [2023-11-19 02:52:07,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:07,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:52:07,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:52:07,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_155818a1-a82e-41f4-97b6-504fd890de6c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:52:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 02:52:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 02:52:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure ctime [2023-11-19 02:52:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 02:52:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 02:52:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-19 02:52:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:52:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 02:52:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 02:52:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:52:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:52:07,194 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 02:52:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 02:52:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:52:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:52:07,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:52:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:52:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 02:52:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 02:52:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:52:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:52:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:52:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure scan_and_display_dirs_recur [2023-11-19 02:52:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_and_display_dirs_recur [2023-11-19 02:52:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:52:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:52:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-19 02:52:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 02:52:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:52:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 02:52:08,323 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:52:08,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation