./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_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_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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_17ba3975-1bc6-4506-a065-0920d3c810ff/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 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:56:37,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:56:37,356 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 16:56:37,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:56:37,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:56:37,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:56:37,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:56:37,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:56:37,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:56:37,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:56:37,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:56:37,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:56:37,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:56:37,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:56:37,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:56:37,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:56:37,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:56:37,400 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:56:37,400 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:56:37,400 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:56:37,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:56:37,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:37,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:56:37,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:56:37,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:56:37,401 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:56:37,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:56:37,401 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_17ba3975-1bc6-4506-a065-0920d3c810ff/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 -> 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c [2024-11-13 16:56:37,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:56:37,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:56:37,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:56:37,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:56:37,780 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:56:37,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i Unable to find full path for "g++" [2024-11-13 16:56:40,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:56:40,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:56:40,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-11-13 16:56:40,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/a66461593/4de06871d1c843bfb70516ed3ab683c1/FLAG9445cc9cf [2024-11-13 16:56:40,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/a66461593/4de06871d1c843bfb70516ed3ab683c1 [2024-11-13 16:56:40,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:56:40,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:56:40,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:40,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:56:40,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:56:40,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:40" (1/1) ... [2024-11-13 16:56:40,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bc990c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:40, skipping insertion in model container [2024-11-13 16:56:40,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:40" (1/1) ... [2024-11-13 16:56:40,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:56:41,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:41,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:56:41,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:41,985 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:56:41,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41 WrapperNode [2024-11-13 16:56:41,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:41,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:41,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:56:41,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:56:41,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,061 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 16:56:42,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:42,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:56:42,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:56:42,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:56:42,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:56:42,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:56:42,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:56:42,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:56:42,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:41" (1/1) ... [2024-11-13 16:56:42,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:42,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:56:42,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:56:42,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:56:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:56:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:56:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:56:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:56:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:56:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:56:42,326 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:56:42,328 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:56:42,508 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 16:56:42,509 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:56:42,552 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:56:42,552 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:56:42,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:42 BoogieIcfgContainer [2024-11-13 16:56:42,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:56:42,554 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:56:42,554 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:56:42,567 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:56:42,567 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:42" (1/1) ... [2024-11-13 16:56:42,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:56:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 16:56:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 16:56:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:56:42,638 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:42,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:42,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:42,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:42,990 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:56:43,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:56:43 ImpRootNode [2024-11-13 16:56:43,031 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:56:43,033 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:56:43,033 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:56:43,033 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:56:43,037 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:42" (3/4) ... [2024-11-13 16:56:43,040 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:56:43,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:56:43,043 INFO L158 Benchmark]: Toolchain (without parser) took 2520.41ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 41.7MB in the end (delta: 47.0MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-13 16:56:43,044 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:43,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1461.97ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 16:56:43,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.17ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:43,045 INFO L158 Benchmark]: Boogie Preprocessor took 24.25ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:43,046 INFO L158 Benchmark]: RCFGBuilder took 465.69ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:43,048 INFO L158 Benchmark]: CodeCheck took 478.19ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 41.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:43,050 INFO L158 Benchmark]: Witness Printer took 9.97ms. Allocated memory is still 117.4MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:43,055 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.52ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1461.97ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.17ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.25ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 465.69ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 478.19ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 41.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 9.97ms. Allocated memory is still 117.4MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:56:43,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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 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_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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_17ba3975-1bc6-4506-a065-0920d3c810ff/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 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:56:45,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:56:45,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 16:56:45,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:56:45,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:56:45,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:56:45,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:56:45,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:56:45,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:56:45,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:56:45,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:56:45,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:56:45,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:56:45,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:56:45,955 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:56:45,955 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:56:45,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:56:45,956 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:56:45,957 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:56:45,957 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:56:45,957 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:45,957 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 16:56:45,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:56:45,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:45,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:56:45,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:56:45,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:56:45,958 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 16:56:45,958 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:45,958 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 16:56:45,958 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_17ba3975-1bc6-4506-a065-0920d3c810ff/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 -> 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c [2024-11-13 16:56:46,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:56:46,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:56:46,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:56:46,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:56:46,339 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:56:46,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i Unable to find full path for "g++" [2024-11-13 16:56:48,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:56:48,867 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:56:48,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-11-13 16:56:48,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/559981fe5/09227f99cbf5463b86e578432ba4ff22/FLAG869837248 [2024-11-13 16:56:49,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/data/559981fe5/09227f99cbf5463b86e578432ba4ff22 [2024-11-13 16:56:49,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:56:49,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:56:49,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:49,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:56:49,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:56:49,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:49" (1/1) ... [2024-11-13 16:56:49,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473445c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:49, skipping insertion in model container [2024-11-13 16:56:49,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:49" (1/1) ... [2024-11-13 16:56:49,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:56:50,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:50,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:56:50,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:50,979 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:56:50,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50 WrapperNode [2024-11-13 16:56:50,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:50,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:50,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:56:50,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:56:50,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,066 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-13 16:56:51,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:51,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:56:51,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:56:51,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:56:51,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:56:51,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:56:51,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:56:51,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:56:51,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:50" (1/1) ... [2024-11-13 16:56:51,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:51,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:56:51,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:56:51,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:56:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:56:51,191 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:56:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 16:56:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:56:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:56:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:56:51,390 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:56:51,392 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:56:51,578 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 16:56:51,578 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:56:51,635 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:56:51,635 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:56:51,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:51 BoogieIcfgContainer [2024-11-13 16:56:51,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:56:51,637 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:56:51,637 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:56:51,647 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:56:51,647 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:51" (1/1) ... [2024-11-13 16:56:51,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:56:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:51,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 16:56:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 16:56:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:56:51,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:51,712 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:51,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:56:51,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:56:51,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 16:56:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:52,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:52,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:52,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 16:56:52,257 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:56:52,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:56:52 ImpRootNode [2024-11-13 16:56:52,299 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:56:52,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:56:52,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:56:52,301 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:56:52,303 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:51" (3/4) ... [2024-11-13 16:56:52,306 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:56:52,307 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:56:52,311 INFO L158 Benchmark]: Toolchain (without parser) took 2937.47ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 89.3MB in the beginning and 200.9MB in the end (delta: -111.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-13 16:56:52,311 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:52,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1607.63ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 66.7MB in the end (delta: 22.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-13 16:56:52,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.72ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 63.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:52,313 INFO L158 Benchmark]: Boogie Preprocessor took 51.74ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 62.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:52,313 INFO L158 Benchmark]: RCFGBuilder took 515.38ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:52,313 INFO L158 Benchmark]: CodeCheck took 662.57ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 45.2MB in the beginning and 201.0MB in the end (delta: -155.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:52,314 INFO L158 Benchmark]: Witness Printer took 6.95ms. Allocated memory is still 243.3MB. Free memory was 201.0MB in the beginning and 200.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:52,320 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, 18 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.36ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1607.63ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 66.7MB in the end (delta: 22.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.72ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 63.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.74ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 62.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.38ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 662.57ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 45.2MB in the beginning and 201.0MB in the end (delta: -155.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.95ms. Allocated memory is still 243.3MB. Free memory was 201.0MB in the beginning and 200.9MB in the end (delta: 42.6kB). 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 16:56:52,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba3975-1bc6-4506-a065-0920d3c810ff/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