./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm --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 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:56:56,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:56:56,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:56:56,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:56:56,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:56:56,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:56:56,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:56:56,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:56:56,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:56:56,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:56:56,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:56:56,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:56:56,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:56:56,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:56:56,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:56:56,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:56:56,954 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:56:56,954 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:56:56,954 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:56:56,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:56:56,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:56:56,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:56:56,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:56:56,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:56:56,955 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:56:56,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:56:56,955 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_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm 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 -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-11-13 22:56:57,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:56:57,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:56:57,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:56:57,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:56:57,320 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:56:57,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i Unable to find full path for "g++" [2024-11-13 22:56:59,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:56:59,802 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:56:59,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-13 22:56:59,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/7a1bef78c/3564ced278b54618a9c69406889e6e5b/FLAGe13460db6 [2024-11-13 22:56:59,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/7a1bef78c/3564ced278b54618a9c69406889e6e5b [2024-11-13 22:56:59,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:56:59,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:56:59,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:56:59,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:56:59,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:56:59,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:56:59" (1/1) ... [2024-11-13 22:56:59,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1687b84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:56:59, skipping insertion in model container [2024-11-13 22:56:59,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:56:59" (1/1) ... [2024-11-13 22:56:59,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:57:01,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:57:01,178 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:57:01,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:57:01,495 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:57:01,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01 WrapperNode [2024-11-13 22:57:01,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:57:01,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:57:01,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:57:01,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:57:01,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,569 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2024-11-13 22:57:01,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:57:01,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:57:01,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:57:01,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:57:01,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:57:01,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:57:01,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:57:01,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:57:01,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:01" (1/1) ... [2024-11-13 22:57:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:57:01,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:57:01,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:57:01,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:57:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:57:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:57:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:57:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:57:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:57:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:57:01,860 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:57:01,862 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:57:02,005 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 22:57:02,005 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:57:02,044 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:57:02,044 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:57:02,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:02 BoogieIcfgContainer [2024-11-13 22:57:02,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:57:02,045 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:57:02,045 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:57:02,056 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:57:02,057 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:02" (1/1) ... [2024-11-13 22:57:02,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:57:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:57:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 22:57:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 22:57:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:57:02,129 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:57:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:57:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:02,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:57:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:02,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:57:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:02,411 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:57:02,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:57:02 ImpRootNode [2024-11-13 22:57:02,450 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:57:02,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:57:02,451 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:57:02,452 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:57:02,452 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:02" (3/4) ... [2024-11-13 22:57:02,454 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:57:02,455 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:57:02,457 INFO L158 Benchmark]: Toolchain (without parser) took 2578.08ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 67.0MB in the end (delta: 49.0MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-13 22:57:02,459 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:02,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1614.09ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 105.5MB in the end (delta: 10.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 22:57:02,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.21ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 102.1MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:57:02,461 INFO L158 Benchmark]: Boogie Preprocessor took 40.55ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 101.5MB in the end (delta: 582.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:02,462 INFO L158 Benchmark]: RCFGBuilder took 433.02ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 86.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:57:02,462 INFO L158 Benchmark]: CodeCheck took 404.78ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 67.0MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:57:02,464 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 142.6MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:02,466 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 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 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1614.09ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 105.5MB in the end (delta: 10.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.21ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 102.1MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.55ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 101.5MB in the end (delta: 582.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 433.02ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 86.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 404.78ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 67.0MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 142.6MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:57:02,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm --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 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:57:05,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:57:05,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:57:05,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:57:05,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:57:05,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:57:05,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:57:05,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:57:05,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:57:05,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:57:05,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:57:05,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:57:05,259 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:57:05,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:57:05,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:57:05,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:57:05,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:57:05,260 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:57:05,260 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:57:05,260 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:57:05,260 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_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm 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 -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-11-13 22:57:05,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:57:05,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:57:05,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:57:05,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:57:05,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:57:05,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i Unable to find full path for "g++" [2024-11-13 22:57:07,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:57:08,010 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:57:08,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-13 22:57:08,036 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/af1eb7dd2/171fa919827847f69b570fc12e61cb13/FLAGc8dae3592 [2024-11-13 22:57:08,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/data/af1eb7dd2/171fa919827847f69b570fc12e61cb13 [2024-11-13 22:57:08,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:57:08,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:57:08,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:57:08,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:57:08,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:57:08,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:57:08" (1/1) ... [2024-11-13 22:57:08,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712e72a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:08, skipping insertion in model container [2024-11-13 22:57:08,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:57:08" (1/1) ... [2024-11-13 22:57:08,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:57:09,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:57:09,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:57:09,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:57:09,528 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:57:09,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09 WrapperNode [2024-11-13 22:57:09,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:57:09,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:57:09,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:57:09,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:57:09,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,600 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 70 [2024-11-13 22:57:09,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:57:09,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:57:09,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:57:09,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:57:09,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:57:09,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:57:09,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:57:09,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:57:09,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:57:09" (1/1) ... [2024-11-13 22:57:09,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:57:09,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:57:09,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:57:09,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:57:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:57:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:57:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:57:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:57:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:57:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:57:09,937 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:57:09,938 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:57:10,118 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 22:57:10,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:57:10,198 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:57:10,198 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:57:10,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:10 BoogieIcfgContainer [2024-11-13 22:57:10,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:57:10,199 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:57:10,199 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:57:10,214 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:57:10,214 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:10" (1/1) ... [2024-11-13 22:57:10,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:57:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:57:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 22:57:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 22:57:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:57:10,288 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:57:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:57:10,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:57:10,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:57:10,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:57:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:10,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:57:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:10,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:57:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:57:10,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:57:10,748 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:57:10,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:57:10 ImpRootNode [2024-11-13 22:57:10,782 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:57:10,783 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:57:10,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:57:10,784 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:57:10,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:57:10" (3/4) ... [2024-11-13 22:57:10,788 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:57:10,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:57:10,790 INFO L158 Benchmark]: Toolchain (without parser) took 2731.77ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 74.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-13 22:57:10,792 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:10,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1469.32ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 66.2MB in the end (delta: 22.5MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-11-13 22:57:10,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.79ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 63.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:10,794 INFO L158 Benchmark]: Boogie Preprocessor took 33.80ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 61.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:57:10,794 INFO L158 Benchmark]: RCFGBuilder took 560.16ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 44.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:57:10,794 INFO L158 Benchmark]: CodeCheck took 582.68ms. Allocated memory is still 117.4MB. Free memory was 44.0MB in the beginning and 74.9MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:10,795 INFO L158 Benchmark]: Witness Printer took 5.97ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:57:10,800 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 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 0.39ms. Allocated memory is still 117.4MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1469.32ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 66.2MB in the end (delta: 22.5MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.79ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 63.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.80ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 61.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 560.16ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 44.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 582.68ms. Allocated memory is still 117.4MB. Free memory was 44.0MB in the beginning and 74.9MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.97ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:57:10,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cde71fc4-6d32-49df-8c4f-ddf94abf311b/bin/ukojak-verify-EEHR8qb7sm/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