./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:35:37,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:35:37,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:35:37,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:35:37,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:35:37,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:35:37,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:35:37,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:35:37,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:35:37,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:35:37,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:35:37,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:35:37,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:35:37,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:35:37,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:35:37,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:35:37,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:35:37,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:35:37,844 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:35:37,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:35:37,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:35:37,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:35:37,846 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:35:37,846 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:35:37,849 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:35:37,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:35:37,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:37,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:35:37,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:35:37,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:35:37,852 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:35:37,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:35:37,852 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_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-09 00:35:38,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:35:38,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:35:38,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:35:38,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:35:38,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:35:38,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i Unable to find full path for "g++" [2024-11-09 00:35:40,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:35:40,982 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:35:40,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-09 00:35:41,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/38a9bc59e/34b271d8ad8d4580bd3caa91c29f0e9d/FLAG40b0f6362 [2024-11-09 00:35:41,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/38a9bc59e/34b271d8ad8d4580bd3caa91c29f0e9d [2024-11-09 00:35:41,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:35:41,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:35:41,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:41,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:35:41,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:35:41,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:41" (1/1) ... [2024-11-09 00:35:41,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbe6aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:41, skipping insertion in model container [2024-11-09 00:35:41,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:41" (1/1) ... [2024-11-09 00:35:41,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:35:42,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:42,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:35:42,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:42,752 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:35:42,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42 WrapperNode [2024-11-09 00:35:42,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:42,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:42,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:35:42,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:35:42,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,827 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 73 [2024-11-09 00:35:42,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:42,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:35:42,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:35:42,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:35:42,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:35:42,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:35:42,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:35:42,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:35:42,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:42" (1/1) ... [2024-11-09 00:35:42,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:35:42,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:35:42,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:35:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:35:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:35:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:35:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:35:42,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:35:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:35:43,220 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:35:43,223 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:35:43,448 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 00:35:43,451 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:35:43,542 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:35:43,545 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:35:43,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:43 BoogieIcfgContainer [2024-11-09 00:35:43,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:35:43,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:35:43,548 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:35:43,562 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:35:43,562 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:43" (1/1) ... [2024-11-09 00:35:43,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:35:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:35:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:35:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:35:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:35:43,662 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:35:43,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:35:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:43,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:44,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:44,130 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:35:44,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:35:44 ImpRootNode [2024-11-09 00:35:44,176 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:35:44,177 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:35:44,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:35:44,178 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:35:44,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:43" (3/4) ... [2024-11-09 00:35:44,183 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:35:44,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:35:44,185 INFO L158 Benchmark]: Toolchain (without parser) took 3142.56ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 124.7MB in the end (delta: -1.7MB). Peak memory consumption was 382.6kB. Max. memory is 16.1GB. [2024-11-09 00:35:44,186 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:44,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1708.74ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 97.5MB in the end (delta: 25.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-11-09 00:35:44,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.62ms. Allocated memory is still 167.8MB. Free memory was 97.5MB in the beginning and 94.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:35:44,190 INFO L158 Benchmark]: Boogie Preprocessor took 28.98ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:35:44,190 INFO L158 Benchmark]: RCFGBuilder took 688.04ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 76.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:35:44,191 INFO L158 Benchmark]: CodeCheck took 628.70ms. Allocated memory is still 167.8MB. Free memory was 76.6MB in the beginning and 125.6MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:44,192 INFO L158 Benchmark]: Witness Printer took 7.18ms. Allocated memory is still 167.8MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:44,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1708.74ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 97.5MB in the end (delta: 25.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.62ms. Allocated memory is still 167.8MB. Free memory was 97.5MB in the beginning and 94.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.98ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.04ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 76.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 628.70ms. Allocated memory is still 167.8MB. Free memory was 76.6MB in the beginning and 125.6MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.18ms. Allocated memory is still 167.8MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:35:44,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:35:46,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:35:46,948 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:35:46,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:35:46,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:35:46,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:35:46,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:35:46,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:35:46,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:35:46,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:35:46,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:35:46,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:35:46,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:35:46,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:35:46,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:35:46,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:35:46,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:35:46,996 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:35:47,000 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:35:47,002 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:35:47,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:35:47,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:35:47,007 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:35:47,007 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:35:47,008 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:35:47,008 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:35:47,008 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:35:47,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:35:47,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:47,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:35:47,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:35:47,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:35:47,014 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:35:47,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:35:47,016 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:35:47,016 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_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-09 00:35:47,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:35:47,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:35:47,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:35:47,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:35:47,541 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:35:47,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i Unable to find full path for "g++" [2024-11-09 00:35:49,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:35:50,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:35:50,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-09 00:35:50,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/27a67a45a/ac451cc0922844559110f885ccd57350/FLAGe11108b02 [2024-11-09 00:35:50,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/data/27a67a45a/ac451cc0922844559110f885ccd57350 [2024-11-09 00:35:50,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:35:50,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:35:50,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:50,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:35:50,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:35:50,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:50" (1/1) ... [2024-11-09 00:35:50,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b197cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:50, skipping insertion in model container [2024-11-09 00:35:50,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:50" (1/1) ... [2024-11-09 00:35:50,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:35:52,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:52,371 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:35:52,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:52,730 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:35:52,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52 WrapperNode [2024-11-09 00:35:52,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:52,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:52,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:35:52,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:35:52,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,810 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2024-11-09 00:35:52,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:52,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:35:52,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:35:52,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:35:52,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:35:52,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:35:52,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:35:52,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:35:52,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:52" (1/1) ... [2024-11-09 00:35:52,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:52,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:35:52,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:35:52,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:35:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:35:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:35:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:35:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:35:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:35:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:35:53,250 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:35:53,253 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:35:53,504 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 00:35:53,507 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:35:53,606 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:35:53,606 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:35:53,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:53 BoogieIcfgContainer [2024-11-09 00:35:53,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:35:53,610 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:35:53,610 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:35:53,625 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:35:53,625 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:53" (1/1) ... [2024-11-09 00:35:53,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:35:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:35:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:35:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:35:53,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:35:53,735 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:35:53,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:35:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:35:53,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:35:53,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:35:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:54,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:54,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:54,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:35:54,296 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:35:54,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:35:54 ImpRootNode [2024-11-09 00:35:54,338 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:35:54,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:35:54,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:35:54,342 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:35:54,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:53" (3/4) ... [2024-11-09 00:35:54,346 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:35:54,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:35:54,349 INFO L158 Benchmark]: Toolchain (without parser) took 3446.04ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 50.1MB in the beginning and 63.3MB in the end (delta: -13.2MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2024-11-09 00:35:54,350 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 53.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:54,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1831.48ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 49.8MB in the beginning and 78.6MB in the end (delta: -28.7MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-11-09 00:35:54,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.75ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 75.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:35:54,353 INFO L158 Benchmark]: Boogie Preprocessor took 39.81ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:35:54,354 INFO L158 Benchmark]: RCFGBuilder took 757.63ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 54.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:35:54,356 INFO L158 Benchmark]: CodeCheck took 727.54ms. Allocated memory is still 107.0MB. Free memory was 54.8MB in the beginning and 63.9MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:54,357 INFO L158 Benchmark]: Witness Printer took 6.71ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.3MB in the end (delta: 625.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:54,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 53.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1831.48ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 49.8MB in the beginning and 78.6MB in the end (delta: -28.7MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.75ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 75.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.81ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.63ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 54.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 727.54ms. Allocated memory is still 107.0MB. Free memory was 54.8MB in the beginning and 63.9MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.71ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.3MB in the end (delta: 625.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:35:54,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca69d7dd-55f5-463d-930c-1fb560943fa4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample