./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm --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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:24:54,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:24:54,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 23:24:54,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:24:54,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:24:54,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:24:54,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:24:54,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:24:54,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:24:54,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:24:54,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:24:54,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:24:54,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:24:54,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:24:54,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:24:54,485 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:24:54,485 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:24:54,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:24:54,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:24:54,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:24:54,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:24:54,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:24:54,486 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:24:54,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:24:54,486 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_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm 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 -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-11-13 23:24:54,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:24:54,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:24:54,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:24:54,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:24:54,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:24:54,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i Unable to find full path for "g++" [2024-11-13 23:24:56,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:24:57,128 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:24:57,131 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-11-13 23:24:57,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/03965b535/a2d61d054d6849f9aba2fb4a14dbf4d9/FLAG85f5eb8a5 [2024-11-13 23:24:57,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/03965b535/a2d61d054d6849f9aba2fb4a14dbf4d9 [2024-11-13 23:24:57,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:24:57,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:24:57,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:24:57,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:24:57,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:24:57,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:24:57" (1/1) ... [2024-11-13 23:24:57,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc48bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:57, skipping insertion in model container [2024-11-13 23:24:57,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:24:57" (1/1) ... [2024-11-13 23:24:57,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:24:58,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:24:58,527 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:24:58,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:24:58,884 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:24:58,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58 WrapperNode [2024-11-13 23:24:58,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:24:58,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:24:58,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:24:58,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:24:58,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,946 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 70 [2024-11-13 23:24:58,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:24:58,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:24:58,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:24:58,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:24:58,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:24:58,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:24:58,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:24:58,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:24:58,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:24:58" (1/1) ... [2024-11-13 23:24:58,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:24:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:24:59,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:24:59,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:24:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:24:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:24:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:24:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:24:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:24:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:24:59,283 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:24:59,286 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:24:59,523 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-13 23:24:59,523 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:24:59,602 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:24:59,603 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:24:59,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:59 BoogieIcfgContainer [2024-11-13 23:24:59,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:24:59,604 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:24:59,604 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:24:59,619 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:24:59,619 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:59" (1/1) ... [2024-11-13 23:24:59,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:24:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:24:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:24:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:24:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:24:59,722 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:24:59,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:24:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:24:59,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:24:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:00,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:25:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:00,159 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:25:00,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:25:00 ImpRootNode [2024-11-13 23:25:00,196 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:25:00,198 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:25:00,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:25:00,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:25:00,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:24:59" (3/4) ... [2024-11-13 23:25:00,202 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:25:00,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:25:00,206 INFO L158 Benchmark]: Toolchain (without parser) took 3030.38ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 44.0MB in the end (delta: 44.9MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-13 23:25:00,207 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:00,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1709.16ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 81.6MB in the end (delta: 7.4MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 23:25:00,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.81ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:25:00,210 INFO L158 Benchmark]: Boogie Preprocessor took 28.83ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:00,211 INFO L158 Benchmark]: RCFGBuilder took 626.75ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 63.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:25:00,211 INFO L158 Benchmark]: CodeCheck took 592.68ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 44.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:25:00,211 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 117.4MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:00,215 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, 0.1s 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_sub_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_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 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 0.40ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1709.16ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 81.6MB in the end (delta: 7.4MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.81ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.83ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 626.75ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 63.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 592.68ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 44.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 117.4MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:25:00,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm --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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:25:03,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:25:03,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 23:25:03,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:25:03,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:25:03,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:25:03,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:25:03,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:25:03,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:25:03,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:25:03,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:25:03,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:25:03,208 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:25:03,208 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:25:03,208 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:25:03,208 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:25:03,208 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:25:03,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:25:03,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:25:03,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:25:03,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:25:03,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:25:03,210 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:25:03,210 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:25:03,210 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:25:03,211 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_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm 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 -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-11-13 23:25:03,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:25:03,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:25:03,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:25:03,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:25:03,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:25:03,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i Unable to find full path for "g++" [2024-11-13 23:25:05,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:25:05,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:25:05,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-11-13 23:25:05,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/3daff5a9c/2587739a6b5042319c5be9537b523d7d/FLAG8878c4d34 [2024-11-13 23:25:05,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/data/3daff5a9c/2587739a6b5042319c5be9537b523d7d [2024-11-13 23:25:05,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:25:06,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:25:06,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:25:06,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:25:06,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:25:06,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:25:05" (1/1) ... [2024-11-13 23:25:06,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3270cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:06, skipping insertion in model container [2024-11-13 23:25:06,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:25:05" (1/1) ... [2024-11-13 23:25:06,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:25:06,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:25:07,005 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:25:07,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:25:07,360 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:25:07,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07 WrapperNode [2024-11-13 23:25:07,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:25:07,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:25:07,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:25:07,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:25:07,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,423 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 69 [2024-11-13 23:25:07,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:25:07,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:25:07,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:25:07,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:25:07,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:25:07,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:25:07,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:25:07,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:25:07,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:25:07" (1/1) ... [2024-11-13 23:25:07,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:25:07,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:25:07,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:25:07,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:25:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:25:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:25:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:25:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:25:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:25:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:25:07,751 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:25:07,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:25:07,951 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 23:25:07,951 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:25:08,030 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:25:08,030 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:25:08,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:25:08 BoogieIcfgContainer [2024-11-13 23:25:08,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:25:08,033 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:25:08,033 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:25:08,058 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:25:08,058 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:25:08" (1/1) ... [2024-11-13 23:25:08,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:25:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:25:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:25:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:25:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:25:08,127 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:25:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:25:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:25:08,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:25:08,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:25:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:08,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:25:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:08,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:25:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:25:08,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:25:08,562 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:25:08,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:25:08 ImpRootNode [2024-11-13 23:25:08,593 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:25:08,594 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:25:08,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:25:08,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:25:08,595 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:25:08" (3/4) ... [2024-11-13 23:25:08,597 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:25:08,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:25:08,599 INFO L158 Benchmark]: Toolchain (without parser) took 2598.77ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 35.1MB in the end (delta: 21.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-13 23:25:08,599 INFO L158 Benchmark]: CDTParser took 3.26ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:08,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1360.46ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 51.6MB in the end (delta: 5.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 23:25:08,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.54ms. Allocated memory is still 83.9MB. Free memory was 51.6MB in the beginning and 48.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:08,600 INFO L158 Benchmark]: Boogie Preprocessor took 48.29ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:08,600 INFO L158 Benchmark]: RCFGBuilder took 554.07ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 30.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:25:08,601 INFO L158 Benchmark]: CodeCheck took 560.38ms. Allocated memory is still 83.9MB. Free memory was 30.0MB in the beginning and 35.5MB in the end (delta: -5.5MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-11-13 23:25:08,601 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 3.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:25:08,604 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_sub_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_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 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 3.26ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1360.46ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 51.6MB in the end (delta: 5.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.54ms. Allocated memory is still 83.9MB. Free memory was 51.6MB in the beginning and 48.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.29ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 554.07ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 30.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 560.38ms. Allocated memory is still 83.9MB. Free memory was 30.0MB in the beginning and 35.5MB in the end (delta: -5.5MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 3.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:25:08,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afa64b80-e6bb-4537-a0a9-402ebc85e61e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample