./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:44:30,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:44:30,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:44:30,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:44:30,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:44:30,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:44:30,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:44:30,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:44:30,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:44:30,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:44:30,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:44:30,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:44:30,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:44:30,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:44:30,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:44:30,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:44:30,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:44:30,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:44:30,597 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:44:30,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:44:30,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:44:30,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:44:30,597 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:44:30,598 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:44:30,598 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:44:30,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:44:30,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:44:30,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:44:30,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:44:30,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:44:30,599 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:44:30,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:44:30,600 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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-13 22:44:31,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:44:31,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:44:31,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:44:31,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:44:31,039 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:44:31,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i Unable to find full path for "g++" [2024-11-13 22:44:33,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:44:33,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:44:33,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-13 22:44:33,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/05dfea5f4/a69b7a7a4b824e62bfbe63bb9c4b8d0e/FLAG808acffbf [2024-11-13 22:44:33,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/05dfea5f4/a69b7a7a4b824e62bfbe63bb9c4b8d0e [2024-11-13 22:44:33,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:44:33,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:44:33,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:44:33,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:44:33,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:44:33,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:44:33" (1/1) ... [2024-11-13 22:44:33,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@946060e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:33, skipping insertion in model container [2024-11-13 22:44:33,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:44:33" (1/1) ... [2024-11-13 22:44:33,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:44:35,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:44:35,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:44:35,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:44:35,385 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:44:35,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35 WrapperNode [2024-11-13 22:44:35,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:44:35,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:44:35,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:44:35,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:44:35,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,465 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2024-11-13 22:44:35,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:44:35,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:44:35,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:44:35,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:44:35,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:44:35,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:44:35,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:44:35,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:44:35,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:35" (1/1) ... [2024-11-13 22:44:35,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:44:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:44:35,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:44:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:44:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:44:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:44:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:44:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:44:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:44:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:44:35,768 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:44:35,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:44:35,987 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 22:44:35,987 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:44:36,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:44:36,057 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:44:36,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:36 BoogieIcfgContainer [2024-11-13 22:44:36,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:44:36,059 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:44:36,059 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:44:36,072 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:44:36,072 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:36" (1/1) ... [2024-11-13 22:44:36,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:44:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:36,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:44:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:44:36,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:44:36,158 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:36,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:36,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:44:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:36,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:44:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:36,526 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:44:36,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:44:36 ImpRootNode [2024-11-13 22:44:36,563 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:44:36,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:44:36,564 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:44:36,564 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:44:36,564 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:36" (3/4) ... [2024-11-13 22:44:36,567 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:44:36,568 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:44:36,569 INFO L158 Benchmark]: Toolchain (without parser) took 2824.14ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 69.5MB in the end (delta: 31.6MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2024-11-13 22:44:36,569 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:36,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1640.76ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 40.4MB in the end (delta: 60.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 22:44:36,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.23ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 37.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:44:36,571 INFO L158 Benchmark]: Boogie Preprocessor took 28.00ms. Allocated memory is still 142.6MB. Free memory was 37.8MB in the beginning and 36.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:36,571 INFO L158 Benchmark]: RCFGBuilder took 562.84ms. Allocated memory is still 142.6MB. Free memory was 36.4MB in the beginning and 89.2MB in the end (delta: -52.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-11-13 22:44:36,572 INFO L158 Benchmark]: CodeCheck took 504.04ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 69.5MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:44:36,572 INFO L158 Benchmark]: Witness Printer took 4.54ms. Allocated memory is still 142.6MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:36,575 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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 - UnprovableResult [Line: 1592]: 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_sub_54_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_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 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 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1640.76ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 40.4MB in the end (delta: 60.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.23ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 37.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.00ms. Allocated memory is still 142.6MB. Free memory was 37.8MB in the beginning and 36.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.84ms. Allocated memory is still 142.6MB. Free memory was 36.4MB in the beginning and 89.2MB in the end (delta: -52.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * CodeCheck took 504.04ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 69.5MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.54ms. Allocated memory is still 142.6MB. Free memory is still 69.5MB. 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 22:44:36,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:44:39,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:44:39,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:44:39,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:44:39,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:44:39,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:44:39,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:44:39,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:44:39,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:44:39,989 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:44:39,990 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:44:39,990 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:44:39,991 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:44:39,991 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:44:39,991 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:44:39,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:44:39,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:44:39,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:44:39,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:44:39,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:44:39,994 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:44:39,994 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:44:39,995 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:44:39,995 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_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-13 22:44:40,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:44:40,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:44:40,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:44:40,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:44:40,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:44:40,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i Unable to find full path for "g++" [2024-11-13 22:44:42,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:44:43,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:44:43,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-13 22:44:43,532 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/173bcb554/c62c1484ac59442cba3b7612363db281/FLAG70a09c634 [2024-11-13 22:44:43,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/data/173bcb554/c62c1484ac59442cba3b7612363db281 [2024-11-13 22:44:43,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:44:43,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:44:43,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:44:43,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:44:43,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:44:43,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:44:43" (1/1) ... [2024-11-13 22:44:43,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135adc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:43, skipping insertion in model container [2024-11-13 22:44:43,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:44:43" (1/1) ... [2024-11-13 22:44:43,672 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:44:44,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:44:44,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:44:45,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:44:45,253 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:44:45,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45 WrapperNode [2024-11-13 22:44:45,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:44:45,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:44:45,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:44:45,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:44:45,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,331 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2024-11-13 22:44:45,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:44:45,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:44:45,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:44:45,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:44:45,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:44:45,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:44:45,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:44:45,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:44:45,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:44:45,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:44:45,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:44:45,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:44:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:44:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:44:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:44:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:44:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:44:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:44:45,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:44:45,659 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:44:45,821 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 22:44:45,821 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:44:45,897 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:44:45,898 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:44:45,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:45 BoogieIcfgContainer [2024-11-13 22:44:45,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:44:45,900 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:44:45,900 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:44:45,916 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:44:45,916 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:45" (1/1) ... [2024-11-13 22:44:45,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:44:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:44:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:44:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:44:46,002 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:46,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:44:46,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:44:46,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:44:46,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:44:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:46,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:44:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:46,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:44:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:44:46,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:44:46,605 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:44:46,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:44:46 ImpRootNode [2024-11-13 22:44:46,646 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:44:46,647 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:44:46,648 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:44:46,648 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:44:46,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:44:45" (3/4) ... [2024-11-13 22:44:46,652 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:44:46,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:44:46,657 INFO L158 Benchmark]: Toolchain (without parser) took 3082.46ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 75.4MB in the end (delta: 16.2MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-11-13 22:44:46,657 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 83.9MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:46,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1679.48ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-11-13 22:44:46,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.84ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:46,658 INFO L158 Benchmark]: Boogie Preprocessor took 35.35ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:46,659 INFO L158 Benchmark]: RCFGBuilder took 530.19ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 57.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:44:46,659 INFO L158 Benchmark]: CodeCheck took 746.51ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 75.4MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:46,659 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:44:46,666 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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 - UnprovableResult [Line: 1592]: 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_sub_54_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_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 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 0.53ms. Allocated memory is still 83.9MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1679.48ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.84ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.35ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 530.19ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 57.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 746.51ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 75.4MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 19.3kB). 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 22:44:46,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec7f0b8c-1e0e-42fa-8621-dcb9b72098a3/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample