./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_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_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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_6b126055-5923-4665-a6aa-e066a66b7e92/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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:45:53,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:45:53,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:45:53,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:45:53,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:45:53,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:45:53,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:45:53,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:45:53,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:45:53,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:45:53,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:45:53,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:45:53,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:45:53,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:45:53,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:45:53,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:45:53,640 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:45:53,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:53,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:45:53,641 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:45:53,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:45:53,642 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_6b126055-5923-4665-a6aa-e066a66b7e92/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 -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-13 21:45:54,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:45:54,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:45:54,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:45:54,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:45:54,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:45:54,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i Unable to find full path for "g++" [2024-11-13 21:45:56,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:45:56,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:45:56,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-13 21:45:56,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/fa3ce4d96/34d7b34c9908494ca35dbe109426bfb7/FLAG61df4c3e5 [2024-11-13 21:45:56,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/fa3ce4d96/34d7b34c9908494ca35dbe109426bfb7 [2024-11-13 21:45:56,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:45:56,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:45:56,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:56,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:45:56,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:45:56,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:56" (1/1) ... [2024-11-13 21:45:56,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566760fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:56, skipping insertion in model container [2024-11-13 21:45:56,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:56" (1/1) ... [2024-11-13 21:45:56,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:45:57,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:57,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:45:57,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:57,915 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:45:57,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57 WrapperNode [2024-11-13 21:45:57,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:57,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:57,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:45:57,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:45:57,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,965 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-13 21:45:57,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:57,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:45:57,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:45:57,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:45:57,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:45:57,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:45:57,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:45:57,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:45:57,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:57" (1/1) ... [2024-11-13 21:45:57,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:58,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:45:58,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:45:58,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:45:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:45:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:45:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:45:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:45:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:45:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:45:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:45:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:45:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:45:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:45:58,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:45:58,260 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:45:58,434 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 21:45:58,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:45:58,501 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:45:58,501 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:45:58,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:58 BoogieIcfgContainer [2024-11-13 21:45:58,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:45:58,503 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:45:58,503 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:45:58,513 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:45:58,513 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:58" (1/1) ... [2024-11-13 21:45:58,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:45:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:45:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:45:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:45:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:45:58,589 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:45:58,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:45:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:58,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:58,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:59,020 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:45:59,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:45:59 ImpRootNode [2024-11-13 21:45:59,057 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:45:59,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:45:59,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:45:59,059 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:45:59,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:58" (3/4) ... [2024-11-13 21:45:59,064 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:45:59,065 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:45:59,068 INFO L158 Benchmark]: Toolchain (without parser) took 2387.14ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 38.1MB in the end (delta: 51.6MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-11-13 21:45:59,068 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:59,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1234.91ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 80.7MB in the end (delta: 8.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-11-13 21:45:59,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.59ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:59,070 INFO L158 Benchmark]: Boogie Preprocessor took 22.43ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:59,073 INFO L158 Benchmark]: RCFGBuilder took 512.93ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 61.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:45:59,076 INFO L158 Benchmark]: CodeCheck took 554.63ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 38.1MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:45:59,076 INFO L158 Benchmark]: Witness Printer took 8.54ms. Allocated memory is still 117.4MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:59,079 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: 1578]: 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_predec_63_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={20586:0}, 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_predec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1234.91ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 80.7MB in the end (delta: 8.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.59ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.43ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 512.93ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 61.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 554.63ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 38.1MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.54ms. Allocated memory is still 117.4MB. Free memory is still 38.1MB. 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 21:45:59,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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_6b126055-5923-4665-a6aa-e066a66b7e92/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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:46:02,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:46:02,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:46:02,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:46:02,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:46:02,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:46:02,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:46:02,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:46:02,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:46:02,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:46:02,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:46:02,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:46:02,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:46:02,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:46:02,955 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:46:02,956 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:46:02,956 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:46:02,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:46:02,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:46:02,957 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:46:02,959 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:46:02,960 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:46:02,960 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_6b126055-5923-4665-a6aa-e066a66b7e92/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 -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-13 21:46:03,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:46:03,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:46:03,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:46:03,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:46:03,411 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:46:03,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i Unable to find full path for "g++" [2024-11-13 21:46:05,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:46:06,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:46:06,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-13 21:46:06,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/779999c0d/65ae6b9754d74332a54e39279f6ad513/FLAGb53a48e2c [2024-11-13 21:46:06,976 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/data/779999c0d/65ae6b9754d74332a54e39279f6ad513 [2024-11-13 21:46:06,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:46:06,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:46:06,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:46:06,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:46:06,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:46:06,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:46:06" (1/1) ... [2024-11-13 21:46:06,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae5d663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:06, skipping insertion in model container [2024-11-13 21:46:06,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:46:06" (1/1) ... [2024-11-13 21:46:07,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:46:08,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:46:08,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:46:08,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:46:08,655 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:46:08,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08 WrapperNode [2024-11-13 21:46:08,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:46:08,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:46:08,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:46:08,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:46:08,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,735 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-13 21:46:08,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:46:08,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:46:08,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:46:08,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:46:08,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:46:08,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:46:08,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:46:08,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:46:08,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:08" (1/1) ... [2024-11-13 21:46:08,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:46:08,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:46:08,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:46:08,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:46:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:46:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:46:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:46:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 21:46:08,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:46:08,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:46:09,180 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 21:46:09,180 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:46:09,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:46:09,251 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:46:09,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:09 BoogieIcfgContainer [2024-11-13 21:46:09,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:46:09,253 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:46:09,253 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:46:09,266 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:46:09,266 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:09" (1/1) ... [2024-11-13 21:46:09,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:46:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:46:09,317 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:46:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:46:09,321 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:09,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:46:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:46:09,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:46:09,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:46:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:09,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:46:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:09,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:46:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:09,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:46:10,000 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:46:10,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:46:10 ImpRootNode [2024-11-13 21:46:10,036 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:46:10,037 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:46:10,037 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:46:10,037 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:46:10,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:09" (3/4) ... [2024-11-13 21:46:10,041 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:46:10,041 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:46:10,044 INFO L158 Benchmark]: Toolchain (without parser) took 3062.68ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 29.7MB in the end (delta: 27.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-11-13 21:46:10,045 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:10,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1675.26ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 50.4MB in the end (delta: 6.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-13 21:46:10,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.77ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:10,046 INFO L158 Benchmark]: Boogie Preprocessor took 47.24ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 45.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:10,046 INFO L158 Benchmark]: RCFGBuilder took 466.43ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 52.2MB in the end (delta: -6.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-13 21:46:10,046 INFO L158 Benchmark]: CodeCheck took 783.66ms. Allocated memory is still 83.9MB. Free memory was 52.2MB in the beginning and 30.1MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:46:10,047 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 83.9MB. Free memory was 30.1MB in the beginning and 29.7MB in the end (delta: 421.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:10,051 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: 0.7s, 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: 1578]: 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_predec_63_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={5:0}, 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_predec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1675.26ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 50.4MB in the end (delta: 6.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.77ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.24ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 45.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.43ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 52.2MB in the end (delta: -6.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * CodeCheck took 783.66ms. Allocated memory is still 83.9MB. Free memory was 52.2MB in the beginning and 30.1MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 83.9MB. Free memory was 30.1MB in the beginning and 29.7MB in the end (delta: 421.9kB). 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 21:46:10,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b126055-5923-4665-a6aa-e066a66b7e92/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