./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b --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 ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:02:05,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:02:05,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 03:02:05,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:02:05,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:02:05,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:02:05,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:02:05,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:02:05,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:02:05,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:02:05,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:02:05,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:02:05,403 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:02:05,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:02:05,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:05,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:02:05,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:02:05,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:02:05,404 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:02:05,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:02:05,404 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_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b 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 -> ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 [2024-12-06 03:02:05,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:02:05,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:02:05,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:02:05,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:02:05,608 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:02:05,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-12-06 03:02:08,202 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/8d44f001c/c0deb92e9d9541409c0a686066d3f595/FLAG33c612cc1 [2024-12-06 03:02:08,524 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:02:08,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-12-06 03:02:08,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/8d44f001c/c0deb92e9d9541409c0a686066d3f595/FLAG33c612cc1 [2024-12-06 03:02:08,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/8d44f001c/c0deb92e9d9541409c0a686066d3f595 [2024-12-06 03:02:08,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:02:08,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:02:08,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:08,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:02:08,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:02:08,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:08" (1/1) ... [2024-12-06 03:02:08,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d21fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:08, skipping insertion in model container [2024-12-06 03:02:08,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:08" (1/1) ... [2024-12-06 03:02:08,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:02:09,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:09,263 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:02:09,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:09,434 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:02:09,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09 WrapperNode [2024-12-06 03:02:09,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:09,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:09,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:02:09,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:02:09,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,474 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-12-06 03:02:09,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:09,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:02:09,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:02:09,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:02:09,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:02:09,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:02:09,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:02:09,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:02:09,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:09,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:02:09,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:02:09,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:02:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:02:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:02:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:02:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:02:09,654 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:02:09,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:02:09,751 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-12-06 03:02:09,751 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:02:09,783 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:02:09,783 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:02:09,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:09 BoogieIcfgContainer [2024-12-06 03:02:09,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:02:09,784 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:02:09,784 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:02:09,791 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:02:09,791 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:09" (1/1) ... [2024-12-06 03:02:09,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:02:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:02:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:02:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:02:09,837 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:09,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:09,949 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:02:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:10,053 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:02:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:10,084 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:02:10,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:02:10 ImpRootNode [2024-12-06 03:02:10,107 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:02:10,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:02:10,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:02:10,108 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:02:10,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:09" (3/4) ... [2024-12-06 03:02:10,111 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:02:10,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:02:10,113 INFO L158 Benchmark]: Toolchain (without parser) took 1552.72ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 41.0MB in the end (delta: 49.4MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-12-06 03:02:10,113 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:10,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 875.02ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 81.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-12-06 03:02:10,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:10,114 INFO L158 Benchmark]: Boogie Preprocessor took 21.74ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:10,114 INFO L158 Benchmark]: RCFGBuilder took 286.41ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:02:10,115 INFO L158 Benchmark]: CodeCheck took 322.97ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 41.0MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:02:10,115 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 117.4MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:10,117 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1580]: 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 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={31599:0}, 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) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] data - 1 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 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 875.02ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 81.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.74ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.41ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 322.97ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 41.0MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 117.4MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 03:02:10,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/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_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b --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 ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:02:12,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:02:12,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 03:02:12,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:02:12,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:02:12,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:02:12,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:02:12,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:02:12,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 03:02:12,147 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:02:12,148 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:02:12,148 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 03:02:12,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:12,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:02:12,149 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 03:02:12,149 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_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b 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 -> ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 [2024-12-06 03:02:12,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:02:12,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:02:12,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:02:12,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:02:12,380 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:02:12,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-12-06 03:02:15,079 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/cd9f5803e/baef4e9ace4c457e9df0515d102221b7/FLAGaca0a9e61 [2024-12-06 03:02:15,378 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:02:15,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-12-06 03:02:15,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/cd9f5803e/baef4e9ace4c457e9df0515d102221b7/FLAGaca0a9e61 [2024-12-06 03:02:15,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/data/cd9f5803e/baef4e9ace4c457e9df0515d102221b7 [2024-12-06 03:02:15,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:02:15,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:02:15,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:15,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:02:15,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:02:15,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:15" (1/1) ... [2024-12-06 03:02:15,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58241cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:15, skipping insertion in model container [2024-12-06 03:02:15,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:15" (1/1) ... [2024-12-06 03:02:15,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:02:16,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:16,314 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:02:16,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:16,521 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:02:16,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16 WrapperNode [2024-12-06 03:02:16,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:16,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:16,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:02:16,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:02:16,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,567 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 03:02:16,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:16,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:02:16,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:02:16,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:02:16,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:02:16,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:02:16,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:02:16,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:02:16,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:16,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:02:16,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:02:16,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:02:16,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:02:16,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:02:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 03:02:16,780 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:02:16,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:02:16,909 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 03:02:16,909 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:02:16,947 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:02:16,947 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:02:16,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:16 BoogieIcfgContainer [2024-12-06 03:02:16,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:02:16,948 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:02:16,949 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:02:16,956 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:02:16,956 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:16" (1/1) ... [2024-12-06 03:02:16,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:02:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:02:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:02:17,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:02:17,001 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:17,001 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:02:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:02:17,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:02:17,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 03:02:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:17,207 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:02:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:17,392 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:02:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:02:17,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 03:02:17,441 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:02:17,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:02:17 ImpRootNode [2024-12-06 03:02:17,466 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:02:17,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:02:17,467 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:02:17,467 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:02:17,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:16" (3/4) ... [2024-12-06 03:02:17,470 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:02:17,471 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:02:17,472 INFO L158 Benchmark]: Toolchain (without parser) took 1837.91ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 49.8MB in the end (delta: 16.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,472 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 887.05ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.2MB in the end (delta: 3.7MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,473 INFO L158 Benchmark]: Boogie Preprocessor took 28.23ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 57.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,474 INFO L158 Benchmark]: RCFGBuilder took 351.22ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 40.7MB in the end (delta: 17.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,474 INFO L158 Benchmark]: CodeCheck took 518.04ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 49.8MB in the end (delta: -9.1MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,474 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,477 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1580]: 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 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, 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) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] data - 1 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 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 887.05ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.2MB in the end (delta: 3.7MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.23ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 57.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.22ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 40.7MB in the end (delta: 17.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 518.04ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 49.8MB in the end (delta: -9.1MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 03:02:17,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083b4c85-63e8-4b02-af73-0e9e06dd6952/bin/ukojak-verify-CZk0znPC7b/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