./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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 d37c1ec71459106032e60eb7bc27fe3e54a637e48f0e814f643241a64f7f516e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:32,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:32,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 20:19:32,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:19:32,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:19:32,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:32,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:32,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:32,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:32,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:32,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:32,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:32,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:19:32,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:32,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:32,959 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:32,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:32,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:19:32,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:19:32,961 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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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 -> d37c1ec71459106032e60eb7bc27fe3e54a637e48f0e814f643241a64f7f516e [2024-11-13 20:19:33,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:33,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:33,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:33,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:33,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:33,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i Unable to find full path for "g++" [2024-11-13 20:19:35,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:35,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:35,897 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i [2024-11-13 20:19:35,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/ff501d44d/9f2cca7d4d244fe7adec5378c4cbc9c1/FLAG1970e6b96 [2024-11-13 20:19:36,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/ff501d44d/9f2cca7d4d244fe7adec5378c4cbc9c1 [2024-11-13 20:19:36,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:36,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:36,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:36,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:36,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:36,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:36" (1/1) ... [2024-11-13 20:19:36,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d14afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:36, skipping insertion in model container [2024-11-13 20:19:36,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:36" (1/1) ... [2024-11-13 20:19:36,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:37,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:37,145 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:37,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:37,443 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:37,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37 WrapperNode [2024-11-13 20:19:37,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:37,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:37,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:37,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:37,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,500 INFO L138 Inliner]: procedures = 498, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-11-13 20:19:37,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:37,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:37,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:37,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:37,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:37,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:37,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:37,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:37,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:37,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:37,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:37,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:19:37,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:19:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:37,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:19:37,837 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:37,839 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:38,044 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:38,044 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:38,120 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:38,120 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:19:38,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:38 BoogieIcfgContainer [2024-11-13 20:19:38,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:38,122 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:38,122 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:38,134 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:38,134 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:38" (1/1) ... [2024-11-13 20:19:38,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-13 20:19:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-13 20:19:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:19:38,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:38,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 27 transitions. [2024-11-13 20:19:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-13 20:19:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 20:19:38,552 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:38,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:38,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:38,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:38,887 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 20:19:38,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:38 ImpRootNode [2024-11-13 20:19:38,933 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:38,934 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:38,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:38,935 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:38,936 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:38" (3/4) ... [2024-11-13 20:19:38,939 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:19:38,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:38,941 INFO L158 Benchmark]: Toolchain (without parser) took 2927.57ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 80.6MB in the end (delta: 7.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:38,944 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:38,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1428.92ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 78.9MB in the end (delta: 9.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:38,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.60ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:38,946 INFO L158 Benchmark]: Boogie Preprocessor took 40.68ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:38,946 INFO L158 Benchmark]: RCFGBuilder took 578.29ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 59.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:38,946 INFO L158 Benchmark]: CodeCheck took 811.61ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 80.6MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:38,947 INFO L158 Benchmark]: Witness Printer took 6.44ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 80.6MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:38,954 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1588. 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); [L1588] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1588] 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] [L1589] CALL CWE191_Integer_Underflow__int_fgets_predec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] case 6: [L1559] data = atoi(inputBuffer) [L1573] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] --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 1.05ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1428.92ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 78.9MB in the end (delta: 9.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.60ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.68ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 578.29ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 59.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 811.61ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 80.6MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.44ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 80.6MB in the end (delta: 7.9kB). 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 20:19:38,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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 d37c1ec71459106032e60eb7bc27fe3e54a637e48f0e814f643241a64f7f516e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:41,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:42,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 20:19:42,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:42,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:42,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:42,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:42,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:42,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:42,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:19:42,150 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:42,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:42,152 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:42,152 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:42,152 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:42,152 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:42,152 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:19:42,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:42,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:42,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:42,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:42,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:42,153 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:19:42,153 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:42,153 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:19:42,153 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_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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 -> d37c1ec71459106032e60eb7bc27fe3e54a637e48f0e814f643241a64f7f516e [2024-11-13 20:19:42,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:42,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:42,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:42,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:42,528 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:42,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i Unable to find full path for "g++" [2024-11-13 20:19:44,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:45,225 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:45,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_15_bad.i [2024-11-13 20:19:45,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/b20345b09/f41ffcb4e2ca4c4a985ca27f288178a6/FLAG02031b0d4 [2024-11-13 20:19:45,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/data/b20345b09/f41ffcb4e2ca4c4a985ca27f288178a6 [2024-11-13 20:19:45,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:45,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:45,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:45,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:45,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:45,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:45" (1/1) ... [2024-11-13 20:19:45,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330ae2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:45, skipping insertion in model container [2024-11-13 20:19:45,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:45" (1/1) ... [2024-11-13 20:19:45,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:46,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:46,752 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:46,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:47,029 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:47,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47 WrapperNode [2024-11-13 20:19:47,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:47,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:47,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:47,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:47,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,115 INFO L138 Inliner]: procedures = 503, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-11-13 20:19:47,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:47,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:47,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:47,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:47,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:47,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:47,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:47,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:47,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:47,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:47,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:47,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:19:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:19:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:19:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:47,520 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:47,524 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:47,753 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:47,753 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:47,814 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:47,814 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:19:47,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:47 BoogieIcfgContainer [2024-11-13 20:19:47,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:47,816 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:47,816 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:47,828 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:47,828 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:47" (1/1) ... [2024-11-13 20:19:47,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:47,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-13 20:19:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-13 20:19:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:19:47,903 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:47,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:47,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:47,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:19:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:48,064 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:19:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:48,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 20:19:48,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:19:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:48,176 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 20:19:48,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:19:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 27 transitions. [2024-11-13 20:19:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-13 20:19:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 20:19:48,238 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:48,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:48,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:48,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:48,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 20:19:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:48,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:48,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:48,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 20:19:48,672 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 20:19:48,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:48 ImpRootNode [2024-11-13 20:19:48,709 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:48,711 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:48,711 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:48,712 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:48,713 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:47" (3/4) ... [2024-11-13 20:19:48,716 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:19:48,717 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:48,720 INFO L158 Benchmark]: Toolchain (without parser) took 3411.25ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 64.9MB in the end (delta: 25.2MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2024-11-13 20:19:48,720 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:48,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1720.28ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 77.8MB in the end (delta: 12.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:48,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.63ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:48,724 INFO L158 Benchmark]: Boogie Preprocessor took 61.35ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:48,724 INFO L158 Benchmark]: RCFGBuilder took 636.46ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 54.9MB in the end (delta: 18.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:48,724 INFO L158 Benchmark]: CodeCheck took 893.75ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 64.9MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:48,724 INFO L158 Benchmark]: Witness Printer took 6.39ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 10.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:48,726 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1588. 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); [L1588] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1588] 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] [L1589] CALL CWE191_Integer_Underflow__int_fgets_predec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] case 6: [L1559] data = atoi(inputBuffer) [L1573] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] --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 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1720.28ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 77.8MB in the end (delta: 12.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.63ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.35ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 636.46ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 54.9MB in the end (delta: 18.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 893.75ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 64.9MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.39ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 10.8kB). 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 20:19:48,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fe963a6-dd95-46f8-8719-b6ca4fe78354/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