./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_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_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3 --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 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:38:58,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:38:58,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:38:58,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:38:58,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:38:58,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:38:58,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:38:58,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:38:58,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:38:58,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:38:58,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:38:58,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:38:58,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:38:58,983 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:38:58,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:38:58,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:38:58,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:38:58,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:38:58,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:38:58,984 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:38:58,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:38:58,984 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_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2024-11-25 02:38:59,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:38:59,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:38:59,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:38:59,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:38:59,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:38:59,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-25 02:39:02,419 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/dcdaac9e5/a4907de8a8c248f2a9303f9dad39d527/FLAG6f033e1f5 [2024-11-25 02:39:02,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:39:02,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-25 02:39:02,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/dcdaac9e5/a4907de8a8c248f2a9303f9dad39d527/FLAG6f033e1f5 [2024-11-25 02:39:02,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/dcdaac9e5/a4907de8a8c248f2a9303f9dad39d527 [2024-11-25 02:39:02,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:39:02,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:39:02,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:39:02,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:39:03,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:39:03,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:39:02" (1/1) ... [2024-11-25 02:39:03,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a891e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:03, skipping insertion in model container [2024-11-25 02:39:03,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:39:02" (1/1) ... [2024-11-25 02:39:03,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:39:04,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:39:04,108 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:39:04,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:39:04,365 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:39:04,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04 WrapperNode [2024-11-25 02:39:04,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:39:04,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:39:04,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:39:04,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:39:04,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,450 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 65 [2024-11-25 02:39:04,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:39:04,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:39:04,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:39:04,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:39:04,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:39:04,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:39:04,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:39:04,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:39:04,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:39:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:39:04,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:39:04,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:39:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:39:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:39:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:39:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:39:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:39:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:39:04,738 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:39:04,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:39:04,849 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 02:39:04,850 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:39:04,892 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:39:04,894 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:39:04,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:04 BoogieIcfgContainer [2024-11-25 02:39:04,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:39:04,896 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:39:04,896 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:39:04,907 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:39:04,907 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:04" (1/1) ... [2024-11-25 02:39:04,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:39:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:39:04,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:39:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:39:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:39:04,988 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:39:04,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:39:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:05,157 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:39:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:05,299 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:39:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:05,341 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:39:05,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:39:05 ImpRootNode [2024-11-25 02:39:05,371 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:39:05,372 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:39:05,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:39:05,372 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:39:05,373 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:04" (3/4) ... [2024-11-25 02:39:05,375 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:39:05,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:39:05,379 INFO L158 Benchmark]: Toolchain (without parser) took 2385.32ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 86.3MB in the end (delta: 27.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-25 02:39:05,380 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:05,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.33ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 53.9MB in the end (delta: 59.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-25 02:39:05,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.26ms. Allocated memory is still 142.6MB. Free memory was 53.9MB in the beginning and 51.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:05,381 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 50.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:05,382 INFO L158 Benchmark]: RCFGBuilder took 402.90ms. Allocated memory is still 142.6MB. Free memory was 50.2MB in the beginning and 105.3MB in the end (delta: -55.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-25 02:39:05,382 INFO L158 Benchmark]: CodeCheck took 475.89ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:39:05,382 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 142.6MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:05,385 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: 0.4s, 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_52c_badSink(data) [L1582] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.33ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 53.9MB in the end (delta: 59.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.26ms. Allocated memory is still 142.6MB. Free memory was 53.9MB in the beginning and 51.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 50.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.90ms. Allocated memory is still 142.6MB. Free memory was 50.2MB in the beginning and 105.3MB in the end (delta: -55.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * CodeCheck took 475.89ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 142.6MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:39:05,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/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_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3 --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 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:39:08,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:39:08,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:39:08,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:39:08,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:39:08,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:39:08,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:39:08,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:39:08,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:39:08,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:39:08,213 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:39:08,214 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:39:08,214 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:39:08,215 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:39:08,215 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:39:08,215 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:39:08,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:39:08,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:39:08,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:39:08,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:39:08,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:39:08,216 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:39:08,216 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:39:08,217 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:39:08,217 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_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2024-11-25 02:39:08,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:39:08,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:39:08,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:39:08,558 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:39:08,558 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:39:08,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-25 02:39:11,606 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/71c764806/add1f6549c34478b965358e399e840b9/FLAG6d794b13f [2024-11-25 02:39:11,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:39:11,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-25 02:39:11,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/71c764806/add1f6549c34478b965358e399e840b9/FLAG6d794b13f [2024-11-25 02:39:11,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/data/71c764806/add1f6549c34478b965358e399e840b9 [2024-11-25 02:39:11,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:39:11,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:39:11,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:39:11,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:39:11,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:39:11,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:39:11" (1/1) ... [2024-11-25 02:39:11,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4571842d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:11, skipping insertion in model container [2024-11-25 02:39:11,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:39:11" (1/1) ... [2024-11-25 02:39:12,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:39:12,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:39:12,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:39:13,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:39:13,266 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:39:13,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13 WrapperNode [2024-11-25 02:39:13,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:39:13,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:39:13,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:39:13,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:39:13,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,321 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2024-11-25 02:39:13,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:39:13,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:39:13,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:39:13,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:39:13,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:39:13,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:39:13,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:39:13,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:39:13,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:39:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:39:13,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:39:13,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:39:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:39:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:39:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:39:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:39:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:39:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:39:13,629 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:39:13,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:39:13,803 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-25 02:39:13,803 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:39:13,881 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:39:13,881 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:39:13,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:13 BoogieIcfgContainer [2024-11-25 02:39:13,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:39:13,882 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:39:13,883 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:39:13,894 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:39:13,895 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:13" (1/1) ... [2024-11-25 02:39:13,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:39:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:39:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:39:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:39:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:39:13,979 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:39:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:39:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:39:13,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:39:13,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:39:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:14,188 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:39:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:14,337 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:39:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:39:14,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:39:14,394 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:39:14,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:39:14 ImpRootNode [2024-11-25 02:39:14,429 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:39:14,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:39:14,431 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:39:14,431 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:39:14,434 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:39:13" (3/4) ... [2024-11-25 02:39:14,438 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:39:14,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:39:14,440 INFO L158 Benchmark]: Toolchain (without parser) took 2456.43ms. Allocated memory is still 83.9MB. Free memory was 57.2MB in the beginning and 36.5MB in the end (delta: 20.7MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-11-25 02:39:14,441 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 36.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:14,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1281.60ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 51.8MB in the end (delta: 5.1MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2024-11-25 02:39:14,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.72ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:14,444 INFO L158 Benchmark]: Boogie Preprocessor took 28.55ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:14,445 INFO L158 Benchmark]: RCFGBuilder took 531.20ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 30.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:39:14,445 INFO L158 Benchmark]: CodeCheck took 546.98ms. Allocated memory is still 83.9MB. Free memory was 30.6MB in the beginning and 36.9MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:14,445 INFO L158 Benchmark]: Witness Printer took 8.95ms. Allocated memory is still 83.9MB. Free memory was 36.5MB in the beginning and 36.5MB in the end (delta: 5.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:39:14,448 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_52c_badSink(data) [L1582] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 36.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1281.60ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 51.8MB in the end (delta: 5.1MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.72ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.55ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.20ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 30.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 546.98ms. Allocated memory is still 83.9MB. Free memory was 30.6MB in the beginning and 36.9MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.95ms. Allocated memory is still 83.9MB. Free memory was 36.5MB in the beginning and 36.5MB in the end (delta: 5.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:39:14,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9b5b60-6af2-41ff-b93c-670800a56a8d/bin/ukojak-verify-ENZ3QT5qd3/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