./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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 c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:51:50,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:51:50,595 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 00:51:50,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:51:50,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:51:50,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:51:50,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:51:50,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:51:50,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:51:50,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:51:50,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:51:50,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:51:50,618 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:51:50,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:51:50,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:51:50,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:51:50,619 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:51:50,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:51:50,619 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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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 -> c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c [2024-12-06 00:51:50,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:51:50,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:51:50,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:51:50,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:51:50,821 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:51:50,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2024-12-06 00:51:53,456 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/bc0c25378/fc6f08df4e5b4ca389689c0e30d7c500/FLAG9d4db60c9 [2024-12-06 00:51:53,763 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:51:53,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2024-12-06 00:51:53,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/bc0c25378/fc6f08df4e5b4ca389689c0e30d7c500/FLAG9d4db60c9 [2024-12-06 00:51:53,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/bc0c25378/fc6f08df4e5b4ca389689c0e30d7c500 [2024-12-06 00:51:53,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:51:53,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:51:53,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:51:53,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:51:53,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:51:53,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:51:53" (1/1) ... [2024-12-06 00:51:53,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8af512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:53, skipping insertion in model container [2024-12-06 00:51:53,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:51:53" (1/1) ... [2024-12-06 00:51:53,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:51:54,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:51:54,523 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:51:54,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:51:54,705 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:51:54,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54 WrapperNode [2024-12-06 00:51:54,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:51:54,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:51:54,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:51:54,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:51:54,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,741 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-12-06 00:51:54,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:51:54,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:51:54,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:51:54,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:51:54,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:51:54,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:51:54,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:51:54,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:51:54,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:51:54" (1/1) ... [2024-12-06 00:51:54,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:51:54,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:51:54,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:51:54,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:51:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:51:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:51:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:51:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:51:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:51:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:51:54,921 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:51:54,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:51:55,020 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 00:51:55,020 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:51:55,055 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:51:55,055 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:51:55,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:51:55 BoogieIcfgContainer [2024-12-06 00:51:55,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:51:55,056 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:51:55,056 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:51:55,063 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:51:55,064 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:51:55" (1/1) ... [2024-12-06 00:51:55,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:51:55,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:51:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:51:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:51:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:51:55,111 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:51:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:51:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:51:55,208 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:51:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:51:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:51:55,292 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:51:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:51:55,320 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 00:51:55,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:51:55 ImpRootNode [2024-12-06 00:51:55,344 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:51:55,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:51:55,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:51:55,345 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:51:55,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:51:55" (3/4) ... [2024-12-06 00:51:55,348 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:51:55,349 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:51:55,349 INFO L158 Benchmark]: Toolchain (without parser) took 1546.58ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 43.5MB in the end (delta: 45.7MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-12-06 00:51:55,350 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:51:55,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 901.45ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.6MB in the end (delta: 8.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-12-06 00:51:55,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.07ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:51:55,351 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:51:55,352 INFO L158 Benchmark]: RCFGBuilder took 294.30ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.7MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:51:55,352 INFO L158 Benchmark]: CodeCheck took 288.10ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 43.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:51:55,352 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 117.4MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:51:55,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 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 1554, overapproximation of fgets at line 1552. 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_postdec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 901.45ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.6MB in the end (delta: 8.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.07ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.30ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.7MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 288.10ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 43.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 117.4MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 00:51:55,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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 c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:51:57,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:51:57,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 00:51:57,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:51:57,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:51:57,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:51:57,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:51:57,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:51:57,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:51:57,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:51:57,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:51:57,422 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:51:57,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:51:57,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:51:57,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:51:57,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:51:57,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:51:57,423 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:51:57,423 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:51:57,423 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:51:57,423 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_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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 -> c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c [2024-12-06 00:51:57,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:51:57,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:51:57,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:51:57,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:51:57,682 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:51:57,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2024-12-06 00:52:00,323 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/18dcb433e/1d30e08c8cfd4acb8311376cdd492e92/FLAG67f19b575 [2024-12-06 00:52:00,608 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:52:00,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2024-12-06 00:52:00,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/18dcb433e/1d30e08c8cfd4acb8311376cdd492e92/FLAG67f19b575 [2024-12-06 00:52:00,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/data/18dcb433e/1d30e08c8cfd4acb8311376cdd492e92 [2024-12-06 00:52:00,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:52:00,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:52:00,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:52:00,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:52:00,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:52:00,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:52:00" (1/1) ... [2024-12-06 00:52:00,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4518df15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:00, skipping insertion in model container [2024-12-06 00:52:00,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:52:00" (1/1) ... [2024-12-06 00:52:00,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:52:01,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:52:01,374 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:52:01,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:52:01,572 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:52:01,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01 WrapperNode [2024-12-06 00:52:01,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:52:01,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:52:01,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:52:01,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:52:01,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,613 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 00:52:01,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:52:01,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:52:01,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:52:01,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:52:01,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:52:01,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:52:01,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:52:01,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:52:01,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:52:01,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:52:01,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:52:01,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:52:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:52:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:52:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:52:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:52:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:52:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:52:01,811 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:52:01,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:52:01,933 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 00:52:01,933 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:52:01,973 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:52:01,973 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:52:01,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:52:01 BoogieIcfgContainer [2024-12-06 00:52:01,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:52:01,974 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:52:01,974 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:52:01,982 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:52:01,982 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:52:01" (1/1) ... [2024-12-06 00:52:01,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:52:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:52:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:52:02,025 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:52:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:52:02,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:52:02,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:52:02,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:52:02,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:52:02,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:52:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:52:02,212 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:52:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:52:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:52:02,306 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:52:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:52:02,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:52:02,341 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 00:52:02,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:52:02 ImpRootNode [2024-12-06 00:52:02,367 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:52:02,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:52:02,367 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:52:02,368 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:52:02,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:52:01" (3/4) ... [2024-12-06 00:52:02,371 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:52:02,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:52:02,372 INFO L158 Benchmark]: Toolchain (without parser) took 1724.56ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 50.7MB in the end (delta: 15.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-12-06 00:52:02,373 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:52:02,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 923.53ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 60.2MB in the end (delta: 5.7MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-06 00:52:02,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.79ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:52:02,374 INFO L158 Benchmark]: Boogie Preprocessor took 24.61ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 55.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:52:02,374 INFO L158 Benchmark]: RCFGBuilder took 334.07ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 39.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:52:02,374 INFO L158 Benchmark]: CodeCheck took 392.63ms. Allocated memory is still 92.3MB. Free memory was 39.3MB in the beginning and 51.3MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:52:02,375 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 50.7MB in the end (delta: 539.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:52:02,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 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 1554, overapproximation of fgets at line 1552. 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_postdec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 923.53ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 60.2MB in the end (delta: 5.7MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.79ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.61ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 55.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 334.07ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 39.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 392.63ms. Allocated memory is still 92.3MB. Free memory was 39.3MB in the beginning and 51.3MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 50.7MB in the end (delta: 539.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 00:52:02,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a5663a-00f7-4067-aa6e-44fbd898fbfa/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