./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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 f48969f9af27ca6315ce0a81868eced358fd6e515cbbbfe34f9cd014137980e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:12:40,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:12:40,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:12:40,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:12:40,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:12:40,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:12:40,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:12:40,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:12:40,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:12:40,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:12:40,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:12:40,382 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:12:40,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:12:40,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:12:40,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:12:40,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:12:40,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:12:40,383 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:12:40,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:12:40,383 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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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 -> f48969f9af27ca6315ce0a81868eced358fd6e515cbbbfe34f9cd014137980e3 [2024-12-06 01:12:40,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:12:40,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:12:40,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:12:40,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:12:40,646 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:12:40,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i [2024-12-06 01:12:43,262 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/362ae4c53/e3d33ae5d90642cf8333d7a624ab984c/FLAG0567fc485 [2024-12-06 01:12:43,577 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:12:43,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i [2024-12-06 01:12:43,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/362ae4c53/e3d33ae5d90642cf8333d7a624ab984c/FLAG0567fc485 [2024-12-06 01:12:43,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/362ae4c53/e3d33ae5d90642cf8333d7a624ab984c [2024-12-06 01:12:43,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:12:43,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:12:43,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:12:43,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:12:43,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:12:43,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:12:43" (1/1) ... [2024-12-06 01:12:43,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c62671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:43, skipping insertion in model container [2024-12-06 01:12:43,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:12:43" (1/1) ... [2024-12-06 01:12:43,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:12:44,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:12:44,563 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:12:44,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:12:44,721 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:12:44,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44 WrapperNode [2024-12-06 01:12:44,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:12:44,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:12:44,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:12:44,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:12:44,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,758 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-12-06 01:12:44,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:12:44,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:12:44,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:12:44,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:12:44,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:12:44,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:12:44,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:12:44,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:12:44,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:44" (1/1) ... [2024-12-06 01:12:44,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:12:44,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:12:44,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:12:44,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:12:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:12:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:12:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:12:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:12:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:12:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:12:44,949 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:12:44,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:12:45,041 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 01:12:45,041 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:12:45,067 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:12:45,068 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:12:45,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:45 BoogieIcfgContainer [2024-12-06 01:12:45,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:12:45,069 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:12:45,069 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:12:45,078 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:12:45,078 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:45" (1/1) ... [2024-12-06 01:12:45,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:12:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:12:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:12:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:12:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:12:45,132 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:12:45,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:12:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:45,226 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:12:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:45,310 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:12:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:45,340 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:12:45,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:12:45 ImpRootNode [2024-12-06 01:12:45,364 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:12:45,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:12:45,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:12:45,365 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:12:45,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:45" (3/4) ... [2024-12-06 01:12:45,367 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:12:45,368 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:12:45,369 INFO L158 Benchmark]: Toolchain (without parser) took 1553.33ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 69.1MB in the end (delta: 46.2MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-12-06 01:12:45,369 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:45,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 905.50ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 106.7MB in the end (delta: 8.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-12-06 01:12:45,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.84ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 104.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:12:45,370 INFO L158 Benchmark]: Boogie Preprocessor took 15.65ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:45,371 INFO L158 Benchmark]: RCFGBuilder took 293.47ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 88.6MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:12:45,371 INFO L158 Benchmark]: CodeCheck took 295.09ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 69.7MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 01:12:45,371 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 69.1MB in the end (delta: 530.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:45,373 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1555] --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 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 905.50ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 106.7MB in the end (delta: 8.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.84ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 104.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.65ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.47ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 88.6MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 295.09ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 69.7MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 69.1MB in the end (delta: 530.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:12:45,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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 f48969f9af27ca6315ce0a81868eced358fd6e515cbbbfe34f9cd014137980e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:12:47,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:12:47,383 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:12:47,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:12:47,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:12:47,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:12:47,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:12:47,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:12:47,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:12:47,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:12:47,411 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:12:47,412 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:12:47,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:12:47,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:12:47,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:12:47,413 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:12:47,413 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:12:47,413 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:12:47,413 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_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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 -> f48969f9af27ca6315ce0a81868eced358fd6e515cbbbfe34f9cd014137980e3 [2024-12-06 01:12:47,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:12:47,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:12:47,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:12:47,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:12:47,670 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:12:47,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i [2024-12-06 01:12:50,272 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/7182a884c/cf8137b0151d483e96e589931f72f088/FLAG363030fec [2024-12-06 01:12:50,578 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:12:50,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_bad.i [2024-12-06 01:12:50,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/7182a884c/cf8137b0151d483e96e589931f72f088/FLAG363030fec [2024-12-06 01:12:50,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/data/7182a884c/cf8137b0151d483e96e589931f72f088 [2024-12-06 01:12:50,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:12:50,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:12:50,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:12:50,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:12:50,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:12:50,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:12:50" (1/1) ... [2024-12-06 01:12:50,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12027e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:50, skipping insertion in model container [2024-12-06 01:12:50,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:12:50" (1/1) ... [2024-12-06 01:12:50,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:12:51,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:12:51,482 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:12:51,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:12:51,676 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:12:51,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51 WrapperNode [2024-12-06 01:12:51,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:12:51,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:12:51,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:12:51,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:12:51,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,715 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 01:12:51,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:12:51,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:12:51,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:12:51,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:12:51,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:12:51,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:12:51,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:12:51,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:12:51,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:12:51" (1/1) ... [2024-12-06 01:12:51,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:12:51,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:12:51,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:12:51,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:12:51,783 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:12:51,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:12:51,908 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:12:51,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:12:52,019 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-06 01:12:52,019 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:12:52,053 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:12:52,053 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:12:52,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:52 BoogieIcfgContainer [2024-12-06 01:12:52,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:12:52,054 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:12:52,054 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:12:52,063 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:12:52,063 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:52" (1/1) ... [2024-12-06 01:12:52,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:12:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:12:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:12:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:12:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:12:52,105 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:12:52,106 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:12:52,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:12:52,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:12:52,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:12:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:52,248 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:12:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:52,346 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:12:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:12:52,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:12:52,380 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:12:52,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:12:52 ImpRootNode [2024-12-06 01:12:52,401 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:12:52,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:12:52,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:12:52,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:12:52,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:12:52" (3/4) ... [2024-12-06 01:12:52,404 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:12:52,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:12:52,405 INFO L158 Benchmark]: Toolchain (without parser) took 1551.69ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 52.9MB in the end (delta: 13.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-12-06 01:12:52,406 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:52,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.18ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 62.5MB in the end (delta: 3.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-12-06 01:12:52,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 59.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:52,407 INFO L158 Benchmark]: Boogie Preprocessor took 22.92ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 58.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:52,407 INFO L158 Benchmark]: RCFGBuilder took 314.41ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 41.6MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:12:52,407 INFO L158 Benchmark]: CodeCheck took 346.65ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 52.9MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:52,408 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:12:52,410 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_predec_61b_badSource(data) [L1555] --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 is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.18ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 62.5MB in the end (delta: 3.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 59.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.92ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 58.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.41ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 41.6MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 346.65ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 52.9MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:12:52,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878bf7cf-595b-47a7-b20e-d0cd550c34d6/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