./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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 b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:43:16,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:43:16,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 16:43:16,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:43:16,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:43:16,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:43:16,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:43:16,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:43:16,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:43:16,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:43:16,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:43:16,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:43:16,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:43:16,856 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:43:16,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:43:16,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:43:16,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:43:16,857 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:43:16,857 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:43:16,857 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:43:16,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:43:16,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:43:16,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:43:16,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:43:16,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:43:16,858 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:43:16,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:43:16,859 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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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 -> b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 [2024-11-13 16:43:17,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:43:17,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:43:17,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:43:17,225 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:43:17,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:43:17,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i Unable to find full path for "g++" [2024-11-13 16:43:19,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:43:20,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:43:20,007 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2024-11-13 16:43:20,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/c93cd451a/3ae99297af5c485c944e920ecc29ba16/FLAG0c83714d8 [2024-11-13 16:43:20,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/c93cd451a/3ae99297af5c485c944e920ecc29ba16 [2024-11-13 16:43:20,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:43:20,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:43:20,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:43:20,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:43:20,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:43:20,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:43:20" (1/1) ... [2024-11-13 16:43:20,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318c8d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:20, skipping insertion in model container [2024-11-13 16:43:20,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:43:20" (1/1) ... [2024-11-13 16:43:20,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:43:21,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:43:21,236 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:43:21,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:43:21,506 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:43:21,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21 WrapperNode [2024-11-13 16:43:21,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:43:21,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:43:21,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:43:21,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:43:21,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,595 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-13 16:43:21,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:43:21,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:43:21,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:43:21,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:43:21,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:43:21,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:43:21,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:43:21,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:43:21,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:21" (1/1) ... [2024-11-13 16:43:21,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:43:21,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:43:21,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:43:21,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:43:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:43:21,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:43:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:43:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:43:21,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:43:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:43:21,939 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:43:21,941 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:43:22,093 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 16:43:22,093 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:43:22,162 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:43:22,163 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:43:22,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:22 BoogieIcfgContainer [2024-11-13 16:43:22,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:43:22,167 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:43:22,167 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:43:22,178 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:43:22,178 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:22" (1/1) ... [2024-11-13 16:43:22,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:43:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:43:22,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-13 16:43:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-13 16:43:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:43:22,253 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:43:22,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:43:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:43:22,465 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 16:43:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:43:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-13 16:43:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-13 16:43:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:43:22,493 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:43:22,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:43:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:22,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:43:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:22,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:43:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:22,790 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 16:43:22,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:43:22 ImpRootNode [2024-11-13 16:43:22,825 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:43:22,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:43:22,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:43:22,826 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:43:22,827 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:22" (3/4) ... [2024-11-13 16:43:22,830 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:43:22,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:43:22,832 INFO L158 Benchmark]: Toolchain (without parser) took 2765.94ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 71.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-11-13 16:43:22,832 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:22,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.23ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 63.3MB in the end (delta: 17.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 16:43:22,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.37ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 60.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:22,834 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 109.1MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:22,835 INFO L158 Benchmark]: RCFGBuilder took 523.05ms. Allocated memory is still 109.1MB. Free memory was 59.5MB in the beginning and 45.9MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:43:22,835 INFO L158 Benchmark]: CodeCheck took 657.73ms. Allocated memory is still 109.1MB. Free memory was 45.9MB in the beginning and 72.2MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:22,836 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 71.5MB in the end (delta: 688.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:22,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 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, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_02_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1569] --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 1.49ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.23ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 63.3MB in the end (delta: 17.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.37ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 60.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 109.1MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.05ms. Allocated memory is still 109.1MB. Free memory was 59.5MB in the beginning and 45.9MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 657.73ms. Allocated memory is still 109.1MB. Free memory was 45.9MB in the beginning and 72.2MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 71.5MB in the end (delta: 688.9kB). 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 16:43:22,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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 b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:43:25,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:43:26,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 16:43:26,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:43:26,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:43:26,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:43:26,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:43:26,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:43:26,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:43:26,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:43:26,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:43:26,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:43:26,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:43:26,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:43:26,095 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:43:26,095 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:43:26,095 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:43:26,095 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:43:26,100 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 16:43:26,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:43:26,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:43:26,101 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 16:43:26,101 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_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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 -> b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 [2024-11-13 16:43:26,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:43:26,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:43:26,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:43:26,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:43:26,462 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:43:26,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i Unable to find full path for "g++" [2024-11-13 16:43:28,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:43:29,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:43:29,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2024-11-13 16:43:29,163 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/1d5d9ed8a/ef80546455e64bde924fa93424109a15/FLAGabce5653e [2024-11-13 16:43:29,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/data/1d5d9ed8a/ef80546455e64bde924fa93424109a15 [2024-11-13 16:43:29,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:43:29,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:43:29,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:43:29,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:43:29,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:43:29,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:43:29" (1/1) ... [2024-11-13 16:43:29,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483651fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:29, skipping insertion in model container [2024-11-13 16:43:29,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:43:29" (1/1) ... [2024-11-13 16:43:29,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:43:30,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:43:30,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:43:30,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:43:30,925 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:43:30,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30 WrapperNode [2024-11-13 16:43:30,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:43:30,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:43:30,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:43:30,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:43:30,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:30,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,013 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-13 16:43:31,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:43:31,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:43:31,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:43:31,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:43:31,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:43:31,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:43:31,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:43:31,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:43:31,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:43:30" (1/1) ... [2024-11-13 16:43:31,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:43:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:43:31,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:43:31,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:43:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:43:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:43:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 16:43:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:43:31,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:43:31,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:43:31,317 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:43:31,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:43:31,497 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 16:43:31,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:43:31,549 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:43:31,550 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:43:31,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:31 BoogieIcfgContainer [2024-11-13 16:43:31,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:43:31,551 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:43:31,551 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:43:31,563 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:43:31,564 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:31" (1/1) ... [2024-11-13 16:43:31,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:43:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:43:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-13 16:43:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-13 16:43:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:43:31,634 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:43:31,635 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:43:31,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:43:31,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:43:31,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 16:43:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:43:31,812 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 16:43:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:43:31,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:43:31,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:43:31,883 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 16:43:31,886 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 16:43:31,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 16:43:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:43:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-13 16:43:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-13 16:43:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:43:31,924 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:43:31,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:43:31,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:43:31,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:43:31,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 16:43:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:32,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:43:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:32,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:43:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:43:32,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:43:32,317 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 16:43:32,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:43:32 ImpRootNode [2024-11-13 16:43:32,356 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:43:32,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:43:32,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:43:32,359 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:43:32,359 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:43:31" (3/4) ... [2024-11-13 16:43:32,362 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:43:32,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:43:32,367 INFO L158 Benchmark]: Toolchain (without parser) took 3168.05ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 70.1MB in the end (delta: 18.4MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-11-13 16:43:32,370 INFO L158 Benchmark]: CDTParser took 3.85ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:32,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1726.88ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 65.2MB in the end (delta: 23.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-13 16:43:32,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.85ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:32,371 INFO L158 Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:43:32,372 INFO L158 Benchmark]: RCFGBuilder took 480.24ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 44.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:43:32,374 INFO L158 Benchmark]: CodeCheck took 805.05ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 70.8MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:43:32,375 INFO L158 Benchmark]: Witness Printer took 7.64ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 70.1MB in the end (delta: 635.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:43:32,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 1 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_02_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1569] --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 3.85ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1726.88ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 65.2MB in the end (delta: 23.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.85ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.78ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 480.24ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 44.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 805.05ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 70.8MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.64ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 70.1MB in the end (delta: 635.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:43:32,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ea534b9-9c6c-44e5-a88d-d30fe9975b95/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