./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4c0363683df592348879b691fb45f023f06c419e789579199aed32d09bd6eff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:29:50,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:29:50,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 22:29:50,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:29:50,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:29:50,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:29:50,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:29:50,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:29:50,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:29:50,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:29:50,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:29:50,560 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:29:50,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:29:50,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:29:50,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:29:50,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:29:50,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:29:50,561 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:29:50,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:29:50,561 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_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4c0363683df592348879b691fb45f023f06c419e789579199aed32d09bd6eff [2024-12-05 22:29:50,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:29:50,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:29:50,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:29:50,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:29:50,801 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:29:50,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i [2024-12-05 22:29:53,414 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/9b265cf4e/626550d1c3954dceb1e2b75d7ed6d54e/FLAG2fb14b363 [2024-12-05 22:29:53,705 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:29:53,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i [2024-12-05 22:29:53,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/9b265cf4e/626550d1c3954dceb1e2b75d7ed6d54e/FLAG2fb14b363 [2024-12-05 22:29:53,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/9b265cf4e/626550d1c3954dceb1e2b75d7ed6d54e [2024-12-05 22:29:53,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:29:53,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:29:53,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:29:53,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:29:53,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:29:53,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:29:53" (1/1) ... [2024-12-05 22:29:53,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6775dd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:53, skipping insertion in model container [2024-12-05 22:29:53,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:29:53" (1/1) ... [2024-12-05 22:29:54,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:29:54,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:29:54,632 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:29:54,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:29:54,804 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:29:54,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54 WrapperNode [2024-12-05 22:29:54,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:29:54,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:29:54,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:29:54,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:29:54,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,840 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-12-05 22:29:54,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:29:54,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:29:54,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:29:54,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:29:54,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:29:54,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:29:54,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:29:54,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:29:54,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:29:54" (1/1) ... [2024-12-05 22:29:54,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:29:54,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:29:54,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:29:54,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:29:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:29:54,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:29:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:29:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:29:54,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:29:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:29:55,016 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:29:55,017 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:29:55,108 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-05 22:29:55,108 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:29:55,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:29:55,142 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 22:29:55,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:29:55 BoogieIcfgContainer [2024-12-05 22:29:55,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:29:55,143 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:29:55,143 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:29:55,150 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:29:55,150 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:29:55" (1/1) ... [2024-12-05 22:29:55,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:29:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:29:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-12-05 22:29:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-12-05 22:29:55,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:29:55,197 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:29:55,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:29:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:29:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:29:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:29:55,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2024-12-05 22:29:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-12-05 22:29:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:29:55,343 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:29:55,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:29:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:29:55,384 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:29:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:29:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:29:55,452 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:29:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:29:55,477 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-05 22:29:55,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:29:55 ImpRootNode [2024-12-05 22:29:55,497 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:29:55,498 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:29:55,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:29:55,498 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:29:55,499 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:29:55" (3/4) ... [2024-12-05 22:29:55,500 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:29:55,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:29:55,502 INFO L158 Benchmark]: Toolchain (without parser) took 1523.65ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 41.3MB in the end (delta: 48.1MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-12-05 22:29:55,502 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:29:55,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.86ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 81.3MB in the end (delta: 8.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-12-05 22:29:55,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.09ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:29:55,503 INFO L158 Benchmark]: Boogie Preprocessor took 22.46ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:29:55,504 INFO L158 Benchmark]: RCFGBuilder took 278.24ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 64.5MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:29:55,504 INFO L158 Benchmark]: CodeCheck took 354.11ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 41.3MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 22:29:55,504 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 117.4MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:29:55,507 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_02_bad() [L1550] int data; [L1551] data = 0 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] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1569] 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 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.86ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 81.3MB in the end (delta: 8.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.09ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.46ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.24ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 64.5MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 354.11ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 41.3MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 117.4MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:29:55,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4c0363683df592348879b691fb45f023f06c419e789579199aed32d09bd6eff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:29:57,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:29:57,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 22:29:57,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:29:57,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:29:57,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:29:57,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:29:57,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:29:57,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:29:57,502 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:29:57,503 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:29:57,503 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 22:29:57,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:29:57,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:29:57,504 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 22:29:57,504 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_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4c0363683df592348879b691fb45f023f06c419e789579199aed32d09bd6eff [2024-12-05 22:29:57,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:29:57,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:29:57,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:29:57,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:29:57,742 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:29:57,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i [2024-12-05 22:30:00,375 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/8c83e9682/ddd92859d51a42c889e2f0e23f2441c0/FLAG18821155b [2024-12-05 22:30:00,703 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:30:00,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_bad.i [2024-12-05 22:30:00,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/8c83e9682/ddd92859d51a42c889e2f0e23f2441c0/FLAG18821155b [2024-12-05 22:30:00,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/data/8c83e9682/ddd92859d51a42c889e2f0e23f2441c0 [2024-12-05 22:30:00,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:30:00,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:30:00,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:30:00,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:30:00,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:30:00,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:30:00" (1/1) ... [2024-12-05 22:30:00,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2912cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:00, skipping insertion in model container [2024-12-05 22:30:00,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:30:00" (1/1) ... [2024-12-05 22:30:00,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:30:01,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:30:01,519 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:30:01,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:30:01,725 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:30:01,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01 WrapperNode [2024-12-05 22:30:01,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:30:01,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:30:01,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:30:01,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:30:01,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,770 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-12-05 22:30:01,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:30:01,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:30:01,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:30:01,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:30:01,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,790 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:30:01,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:30:01,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:30:01,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:30:01,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:30:01" (1/1) ... [2024-12-05 22:30:01,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:30:01,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:30:01,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:30:01,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:30:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:30:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:30:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 22:30:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:30:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:30:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:30:01,979 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:30:01,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:30:02,086 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-05 22:30:02,086 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:30:02,126 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:30:02,126 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 22:30:02,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:30:02 BoogieIcfgContainer [2024-12-05 22:30:02,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:30:02,128 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:30:02,128 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:30:02,136 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:30:02,136 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:30:02" (1/1) ... [2024-12-05 22:30:02,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:30:02,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:30:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-12-05 22:30:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-12-05 22:30:02,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:30:02,185 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:30:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 22:30:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 22:30:02,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 22:30:02,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 22:30:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:30:02,287 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 22:30:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:30:02,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-05 22:30:02,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 22:30:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:30:02,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 22:30:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:30:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2024-12-05 22:30:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-12-05 22:30:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:30:02,360 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:30:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 22:30:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 22:30:02,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 22:30:02,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 22:30:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:30:02,482 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:30:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:30:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:30:02,564 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:30:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:30:02,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 22:30:02,593 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-05 22:30:02,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:30:02 ImpRootNode [2024-12-05 22:30:02,616 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:30:02,616 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:30:02,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:30:02,616 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:30:02,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:30:02" (3/4) ... [2024-12-05 22:30:02,619 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:30:02,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:30:02,621 INFO L158 Benchmark]: Toolchain (without parser) took 1879.40ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.0MB in the beginning and 97.8MB in the end (delta: -31.7MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-12-05 22:30:02,621 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:30:02,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 982.69ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 61.1MB in the end (delta: 4.7MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-05 22:30:02,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.64ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 58.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:30:02,622 INFO L158 Benchmark]: Boogie Preprocessor took 28.02ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 56.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:30:02,623 INFO L158 Benchmark]: RCFGBuilder took 327.64ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 41.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:30:02,623 INFO L158 Benchmark]: CodeCheck took 488.19ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 97.8MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:30:02,623 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 97.8MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:30:02,625 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 52 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_02_bad() [L1550] int data; [L1551] data = 0 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] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1569] 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 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 982.69ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 61.1MB in the end (delta: 4.7MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.64ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 58.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.02ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 56.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.64ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 41.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 488.19ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 97.8MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 97.8MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:30:02,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b716ae55-f08e-48a7-a582-b461dc964d78/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample