./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:49:55,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:49:55,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:49:55,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:49:55,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:49:55,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:49:55,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:49:55,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:49:55,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:49:55,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:49:55,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:49:55,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:49:55,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:49:55,216 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:49:55,216 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:49:55,216 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:49:55,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:49:55,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:49:55,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:49:55,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:49:55,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:49:55,217 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:49:55,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:49:55,217 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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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 -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2024-12-05 23:49:55,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:49:55,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:49:55,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:49:55,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:49:55,435 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:49:55,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-12-05 23:49:58,059 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/db6b010d7/3670f58b0db541ee897c748ef8b7b704/FLAGfc0f8c98c [2024-12-05 23:49:58,364 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:49:58,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-12-05 23:49:58,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/db6b010d7/3670f58b0db541ee897c748ef8b7b704/FLAGfc0f8c98c [2024-12-05 23:49:58,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/db6b010d7/3670f58b0db541ee897c748ef8b7b704 [2024-12-05 23:49:58,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:49:58,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:49:58,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:49:58,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:49:58,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:49:58,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:49:58" (1/1) ... [2024-12-05 23:49:58,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4208c32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:58, skipping insertion in model container [2024-12-05 23:49:58,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:49:58" (1/1) ... [2024-12-05 23:49:58,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:49:59,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:49:59,142 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:49:59,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:49:59,296 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:49:59,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59 WrapperNode [2024-12-05 23:49:59,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:49:59,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:49:59,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:49:59,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:49:59,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,340 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-05 23:49:59,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:49:59,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:49:59,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:49:59,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:49:59,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,355 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:49:59,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:49:59,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:49:59,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:49:59,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:49:59,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:49:59,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:49:59,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:49:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:49:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:49:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:49:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:49:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:49:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:49:59,516 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:49:59,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:49:59,614 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 23:49:59,614 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:49:59,645 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:49:59,646 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:49:59,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:49:59 BoogieIcfgContainer [2024-12-05 23:49:59,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:49:59,647 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:49:59,647 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:49:59,654 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:49:59,654 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:49:59" (1/1) ... [2024-12-05 23:49:59,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:49:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:49:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:49:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:49:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:49:59,699 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:49:59,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:49:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:49:59,795 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:49:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:49:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:49:59,874 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:49:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:49:59,900 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:49:59,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:49:59 ImpRootNode [2024-12-05 23:49:59,924 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:49:59,924 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:49:59,924 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:49:59,924 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:49:59,925 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:49:59" (3/4) ... [2024-12-05 23:49:59,927 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:49:59,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:49:59,929 INFO L158 Benchmark]: Toolchain (without parser) took 1526.85ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 77.6MB in the end (delta: 35.7MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-12-05 23:49:59,930 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:49:59,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.85ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 53.2MB in the end (delta: 60.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-05 23:49:59,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 111.5MB in the end (delta: -58.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-12-05 23:49:59,931 INFO L158 Benchmark]: Boogie Preprocessor took 20.39ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 110.9MB in the end (delta: 658.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:49:59,931 INFO L158 Benchmark]: RCFGBuilder took 284.15ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 96.1MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:49:59,932 INFO L158 Benchmark]: CodeCheck took 276.99ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 77.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:49:59,932 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:49:59,934 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: 0.2s, 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] --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 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.85ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 53.2MB in the end (delta: 60.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 111.5MB in the end (delta: -58.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.39ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 110.9MB in the end (delta: 658.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.15ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 96.1MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 276.99ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 77.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. 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 [2024-12-05 23:49:59,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:50:01,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:50:01,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 23:50:01,983 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:50:01,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:50:01,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:50:01,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:50:01,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:50:01,985 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:50:01,986 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:50:01,986 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:50:01,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:50:01,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:50:01,987 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:50:01,987 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_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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 -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2024-12-05 23:50:02,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:50:02,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:50:02,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:50:02,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:50:02,239 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:50:02,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-12-05 23:50:04,980 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/7c167b4de/0101fbd26e5942a1b04e7a0c95575bc2/FLAG527f71a7d [2024-12-05 23:50:05,253 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:50:05,253 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-12-05 23:50:05,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/7c167b4de/0101fbd26e5942a1b04e7a0c95575bc2/FLAG527f71a7d [2024-12-05 23:50:05,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/data/7c167b4de/0101fbd26e5942a1b04e7a0c95575bc2 [2024-12-05 23:50:05,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:50:05,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:50:05,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:50:05,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:50:05,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:50:05,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:50:05" (1/1) ... [2024-12-05 23:50:05,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703c0fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:05, skipping insertion in model container [2024-12-05 23:50:05,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:50:05" (1/1) ... [2024-12-05 23:50:05,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:50:06,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:50:06,209 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:50:06,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:50:06,402 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:50:06,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06 WrapperNode [2024-12-05 23:50:06,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:50:06,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:50:06,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:50:06,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:50:06,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,444 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2024-12-05 23:50:06,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:50:06,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:50:06,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:50:06,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:50:06,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,460 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:50:06,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:50:06,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:50:06,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:50:06,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:50:06,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:50:06,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:50:06,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:50:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:50:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:50:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:50:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:50:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:50:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:50:06,628 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:50:06,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:50:06,742 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 23:50:06,742 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:50:06,775 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:50:06,775 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:50:06,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:50:06 BoogieIcfgContainer [2024-12-05 23:50:06,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:50:06,776 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:50:06,776 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:50:06,786 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:50:06,786 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:50:06" (1/1) ... [2024-12-05 23:50:06,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:50:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:50:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:50:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:50:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:50:06,834 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:50:06,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:50:06,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:50:06,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:50:06,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:50:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:50:06,994 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:50:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:50:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:50:07,109 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:50:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:50:07,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:50:07,142 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:50:07,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:50:07 ImpRootNode [2024-12-05 23:50:07,166 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:50:07,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:50:07,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:50:07,167 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:50:07,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:50:06" (3/4) ... [2024-12-05 23:50:07,170 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:50:07,171 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:50:07,172 INFO L158 Benchmark]: Toolchain (without parser) took 1641.68ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.0MB in the beginning and 103.9MB in the end (delta: -38.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-12-05 23:50:07,172 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:50:07,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 872.45ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.3MB in the end (delta: 3.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-05 23:50:07,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.34ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:50:07,173 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:50:07,174 INFO L158 Benchmark]: RCFGBuilder took 305.68ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 41.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:50:07,174 INFO L158 Benchmark]: CodeCheck took 390.53ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.4MB in the beginning and 104.4MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:50:07,174 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.9MB in the end (delta: 524.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:50:07,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] --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 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 872.45ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.3MB in the end (delta: 3.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.34ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.68ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 41.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 390.53ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.4MB in the beginning and 104.4MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.9MB in the end (delta: 524.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:50:07,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb917ccb-1cc1-4be0-bdc4-1917641566aa/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