./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:51:42,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:51:42,091 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:51:42,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:51:42,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:51:42,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:51:42,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:51:42,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:51:42,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:51:42,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:51:42,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:51:42,119 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:51:42,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:51:42,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:51:42,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:51:42,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:51:42,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:51:42,120 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:51:42,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:51:42,120 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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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 -> 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c [2024-12-06 04:51:42,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:51:42,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:51:42,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:51:42,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:51:42,376 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:51:42,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-12-06 04:51:45,029 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/f3a8cdc14/c93d4aa02afb4c958434f8e61f83bf7f/FLAG018c723ef [2024-12-06 04:51:45,333 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:51:45,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-12-06 04:51:45,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/f3a8cdc14/c93d4aa02afb4c958434f8e61f83bf7f/FLAG018c723ef [2024-12-06 04:51:45,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/f3a8cdc14/c93d4aa02afb4c958434f8e61f83bf7f [2024-12-06 04:51:45,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:51:45,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:51:45,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:51:45,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:51:45,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:51:45,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:51:45" (1/1) ... [2024-12-06 04:51:45,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530e8f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:45, skipping insertion in model container [2024-12-06 04:51:45,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:51:45" (1/1) ... [2024-12-06 04:51:45,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:51:46,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:51:46,062 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:51:46,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:51:46,252 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:51:46,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46 WrapperNode [2024-12-06 04:51:46,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:51:46,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:51:46,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:51:46,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:51:46,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,297 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 04:51:46,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:51:46,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:51:46,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:51:46,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:51:46,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,312 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:51:46,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:51:46,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:51:46,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:51:46,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:51:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:51:46,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:51:46,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:51:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:51:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:51:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:51:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:51:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:51:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:51:46,485 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:51:46,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:51:46,584 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-06 04:51:46,584 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:51:46,617 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:51:46,617 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:51:46,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:46 BoogieIcfgContainer [2024-12-06 04:51:46,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:51:46,618 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:51:46,618 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:51:46,627 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:51:46,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:46" (1/1) ... [2024-12-06 04:51:46,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:51:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:51:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 04:51:46,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 04:51:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:51:46,683 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:51:46,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:51:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:46,794 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:51:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:46,873 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:51:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:46,902 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:51:46,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:51:46 ImpRootNode [2024-12-06 04:51:46,925 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:51:46,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:51:46,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:51:46,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:51:46,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:46" (3/4) ... [2024-12-06 04:51:46,928 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:51:46,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:51:46,930 INFO L158 Benchmark]: Toolchain (without parser) took 1559.05ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 77.6MB in the end (delta: 36.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-06 04:51:46,930 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:46,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 880.99ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 53.4MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 04:51:46,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.77ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 112.1MB in the end (delta: -58.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-12-06 04:51:46,932 INFO L158 Benchmark]: Boogie Preprocessor took 19.07ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 661.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:46,932 INFO L158 Benchmark]: RCFGBuilder took 299.58ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 97.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:51:46,932 INFO L158 Benchmark]: CodeCheck took 306.87ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 77.6MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:51:46,933 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:46,935 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 880.99ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 53.4MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.77ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 112.1MB in the end (delta: -58.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.07ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 661.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.58ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 97.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 306.87ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 77.6MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. 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 04:51:46,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:51:48,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:51:48,968 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 04:51:48,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:51:48,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:51:48,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:51:48,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:51:48,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:51:48,994 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:51:48,995 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:51:48,995 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:51:48,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:51:48,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:51:48,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:51:48,997 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:51:48,997 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_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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 -> 48a41c0e13fab0abc4e4e5a72fc263bc2626d7943e50b4922663928007feb57c [2024-12-06 04:51:49,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:51:49,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:51:49,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:51:49,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:51:49,235 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:51:49,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-12-06 04:51:51,933 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/980508440/10bd8289e9d04b73b99667a4197d240a/FLAG3aa674bd7 [2024-12-06 04:51:52,218 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:51:52,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_21_bad.i [2024-12-06 04:51:52,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/980508440/10bd8289e9d04b73b99667a4197d240a/FLAG3aa674bd7 [2024-12-06 04:51:52,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/data/980508440/10bd8289e9d04b73b99667a4197d240a [2024-12-06 04:51:52,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:51:52,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:51:52,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:51:52,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:51:52,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:51:52,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:51:52" (1/1) ... [2024-12-06 04:51:52,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24444cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:52, skipping insertion in model container [2024-12-06 04:51:52,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:51:52" (1/1) ... [2024-12-06 04:51:52,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:51:52,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:51:52,887 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:51:52,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:51:53,062 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:51:53,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53 WrapperNode [2024-12-06 04:51:53,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:51:53,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:51:53,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:51:53,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:51:53,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,102 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-12-06 04:51:53,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:51:53,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:51:53,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:51:53,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:51:53,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:51:53,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:51:53,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:51:53,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:51:53,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:51:53,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:51:53,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:51:53,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:51:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:51:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:51:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:51:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:51:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:51:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:51:53,289 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:51:53,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:51:53,402 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 04:51:53,402 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:51:53,441 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:51:53,441 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:51:53,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:53 BoogieIcfgContainer [2024-12-06 04:51:53,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:51:53,442 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:51:53,442 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:51:53,451 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:51:53,451 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:53" (1/1) ... [2024-12-06 04:51:53,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:51:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:51:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 04:51:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 04:51:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:51:53,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:51:53,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:51:53,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:51:53,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:51:53,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:51:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:53,651 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:51:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:53,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:51:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:51:53,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:51:53,775 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:51:53,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:51:53 ImpRootNode [2024-12-06 04:51:53,796 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:51:53,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:51:53,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:51:53,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:51:53,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:51:53" (3/4) ... [2024-12-06 04:51:53,799 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:51:53,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:51:53,800 INFO L158 Benchmark]: Toolchain (without parser) took 1548.46ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 51.0MB in the end (delta: 15.3MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-12-06 04:51:53,801 INFO L158 Benchmark]: CDTParser took 0.28ms. 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 04:51:53,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.88ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 59.9MB in the end (delta: 6.2MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-12-06 04:51:53,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.47ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 57.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:53,802 INFO L158 Benchmark]: Boogie Preprocessor took 24.00ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 55.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:53,802 INFO L158 Benchmark]: RCFGBuilder took 313.54ms. Allocated memory is still 92.3MB. Free memory was 55.5MB in the beginning and 39.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:51:53,802 INFO L158 Benchmark]: CodeCheck took 354.13ms. Allocated memory is still 92.3MB. Free memory was 39.1MB in the beginning and 51.5MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:53,803 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 51.0MB in the end (delta: 529.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:51:53,805 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.88ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 59.9MB in the end (delta: 6.2MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.47ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 57.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.00ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 55.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.54ms. Allocated memory is still 92.3MB. Free memory was 55.5MB in the beginning and 39.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 354.13ms. Allocated memory is still 92.3MB. Free memory was 39.1MB in the beginning and 51.5MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 51.0MB in the end (delta: 529.5kB). 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 04:51:53,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec10b6f-d7d4-49e9-be2d-a7f4f8a5dfd9/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