./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_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_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/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_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/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_495ed35d-94ee-4320-af87-4c02ebc7f348/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 6df2b9983abdfcbde7954e56f61fb05c0f4cb00301603c6872ea03705ff67ac5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:23:50,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:23:50,402 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:23:50,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:23:50,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:23:50,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:23:50,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:23:50,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:23:50,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:23:50,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:23:50,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:23:50,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:23:50,438 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:23:50,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:23:50,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:23:50,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:23:50,439 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:23:50,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:23:50,439 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_495ed35d-94ee-4320-af87-4c02ebc7f348/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 -> 6df2b9983abdfcbde7954e56f61fb05c0f4cb00301603c6872ea03705ff67ac5 [2024-11-13 22:23:50,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:23:50,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:23:50,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:23:50,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:23:50,768 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:23:50,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i Unable to find full path for "g++" [2024-11-13 22:23:52,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:23:53,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:23:53,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i [2024-11-13 22:23:53,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/35b123ac7/2555f4b3858f45b48611d1596d1c90eb/FLAG7ba332f21 [2024-11-13 22:23:53,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/35b123ac7/2555f4b3858f45b48611d1596d1c90eb [2024-11-13 22:23:53,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:23:53,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:23:53,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:23:53,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:23:53,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:23:53,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:23:53" (1/1) ... [2024-11-13 22:23:53,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5749fb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:53, skipping insertion in model container [2024-11-13 22:23:53,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:23:53" (1/1) ... [2024-11-13 22:23:53,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:23:54,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:23:54,122 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:23:54,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:23:54,382 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:23:54,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54 WrapperNode [2024-11-13 22:23:54,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:23:54,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:23:54,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:23:54,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:23:54,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,443 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-11-13 22:23:54,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:23:54,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:23:54,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:23:54,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:23:54,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:23:54,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:23:54,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:23:54,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:23:54,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:23:54,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:23:54,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:23:54,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:23:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:23:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:23:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:23:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:23:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:23:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:23:54,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:23:54,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:23:54,868 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 22:23:54,868 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:23:54,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:23:54,904 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 22:23:54,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:54 BoogieIcfgContainer [2024-11-13 22:23:54,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:23:54,906 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:23:54,906 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:23:54,915 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:23:54,915 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:54" (1/1) ... [2024-11-13 22:23:54,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:23:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 22:23:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 22:23:54,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:23:54,978 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:55,152 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 22:23:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2024-11-13 22:23:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 22:23:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 22:23:55,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:55,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:23:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:55,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:23:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:55,396 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 22:23:55,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:23:55 ImpRootNode [2024-11-13 22:23:55,439 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:23:55,439 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:23:55,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:23:55,440 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:23:55,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:54" (3/4) ... [2024-11-13 22:23:55,443 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:23:55,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:23:55,445 INFO L158 Benchmark]: Toolchain (without parser) took 2285.75ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 39.1MB in the end (delta: 50.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,446 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:55,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1224.52ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 81.6MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.41ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.3MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,447 INFO L158 Benchmark]: Boogie Preprocessor took 43.35ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:55,447 INFO L158 Benchmark]: RCFGBuilder took 416.49ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 63.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,448 INFO L158 Benchmark]: CodeCheck took 533.17ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 39.2MB in the end (delta: 24.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,449 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 110.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:23:55,452 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1570]: 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 1580, 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_16_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] [L1552] COND TRUE 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) [L1567] COND TRUE 1 [L1570] 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 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1224.52ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 81.6MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.41ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.3MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.35ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 416.49ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 63.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 533.17ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 39.2MB in the end (delta: 24.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 110.4kB). 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 22:23:55,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/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_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/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_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/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_495ed35d-94ee-4320-af87-4c02ebc7f348/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 6df2b9983abdfcbde7954e56f61fb05c0f4cb00301603c6872ea03705ff67ac5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:23:58,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:23:58,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:23:58,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:23:58,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:23:58,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:23:58,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:23:58,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:23:58,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:23:58,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:23:58,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:23:58,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:23:58,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:23:58,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:23:58,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:23:58,286 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:23:58,286 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:23:58,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:23:58,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:23:58,287 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:23:58,287 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_495ed35d-94ee-4320-af87-4c02ebc7f348/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 -> 6df2b9983abdfcbde7954e56f61fb05c0f4cb00301603c6872ea03705ff67ac5 [2024-11-13 22:23:58,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:23:58,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:23:58,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:23:58,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:23:58,562 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:23:58,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i Unable to find full path for "g++" [2024-11-13 22:24:00,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:24:00,978 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:24:00,979 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_16_bad.i [2024-11-13 22:24:01,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/ede3307bb/fabd02107a2f4c04beaec20170964d39/FLAGd283a56cf [2024-11-13 22:24:01,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/data/ede3307bb/fabd02107a2f4c04beaec20170964d39 [2024-11-13 22:24:01,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:24:01,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:24:01,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:24:01,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:24:01,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:24:01,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:24:01" (1/1) ... [2024-11-13 22:24:01,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d9e0917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:01, skipping insertion in model container [2024-11-13 22:24:01,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:24:01" (1/1) ... [2024-11-13 22:24:01,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:24:02,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:24:02,022 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:24:02,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:24:02,274 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:24:02,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02 WrapperNode [2024-11-13 22:24:02,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:24:02,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:24:02,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:24:02,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:24:02,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,338 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-13 22:24:02,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:24:02,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:24:02,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:24:02,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:24:02,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:24:02,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:24:02,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:24:02,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:24:02,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:24:02,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:24:02,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:24:02,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:24:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:24:02,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:24:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:24:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:24:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:24:02,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:24:02,604 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:24:02,606 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:24:02,751 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 22:24:02,751 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:24:02,803 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:24:02,804 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 22:24:02,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:02 BoogieIcfgContainer [2024-11-13 22:24:02,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:24:02,805 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:24:02,805 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:24:02,821 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:24:02,821 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:02" (1/1) ... [2024-11-13 22:24:02,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:24:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 22:24:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 22:24:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:24:02,897 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:24:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:24:02,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:24:02,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:24:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:03,054 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:24:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:03,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 22:24:03,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:24:03,156 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 22:24:03,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:24:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2024-11-13 22:24:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 22:24:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 22:24:03,187 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:03,187 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:24:03,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:24:03,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:24:03,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 22:24:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:03,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:24:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:03,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:24:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:03,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 22:24:03,566 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 22:24:03,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:24:03 ImpRootNode [2024-11-13 22:24:03,604 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:24:03,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:24:03,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:24:03,604 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:24:03,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:02" (3/4) ... [2024-11-13 22:24:03,607 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:24:03,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:24:03,609 INFO L158 Benchmark]: Toolchain (without parser) took 2582.19ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 69.8MB in the end (delta: 19.4MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-11-13 22:24:03,609 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:03,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1245.07ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 66.8MB in the end (delta: 22.1MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-11-13 22:24:03,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.63ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:03,614 INFO L158 Benchmark]: Boogie Preprocessor took 51.80ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 62.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:03,614 INFO L158 Benchmark]: RCFGBuilder took 413.03ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:24:03,614 INFO L158 Benchmark]: CodeCheck took 798.83ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 69.8MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:03,615 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 69.8MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:03,621 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, 19 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 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: 1570]: 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 1580, 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_16_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] [L1552] COND TRUE 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) [L1567] COND TRUE 1 [L1570] 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 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1245.07ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 66.8MB in the end (delta: 22.1MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.63ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.80ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 62.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.03ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 798.83ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 69.8MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 69.8MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:24:03,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495ed35d-94ee-4320-af87-4c02ebc7f348/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample