./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_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_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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_414665d3-7737-4077-87cb-2abfdd6e8c89/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:50:26,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:50:26,428 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:50:26,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:50:26,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:50:26,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:50:26,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:50:26,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:50:26,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:50:26,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:50:26,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:50:26,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:50:26,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:50:26,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:50:26,453 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:50:26,453 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:50:26,453 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:50:26,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:50:26,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:26,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:50:26,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:50:26,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:50:26,454 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:50:26,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:50:26,454 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_414665d3-7737-4077-87cb-2abfdd6e8c89/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 -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2024-12-06 05:50:26,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:50:26,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:50:26,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:50:26,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:50:26,672 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:50:26,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-12-06 05:50:29,263 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/95c760d29/5d11d510cd3f433182257fbb58a7d8c1/FLAGd9a2f5fda [2024-12-06 05:50:29,570 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:50:29,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-12-06 05:50:29,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/95c760d29/5d11d510cd3f433182257fbb58a7d8c1/FLAGd9a2f5fda [2024-12-06 05:50:29,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/95c760d29/5d11d510cd3f433182257fbb58a7d8c1 [2024-12-06 05:50:29,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:50:29,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:50:29,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:29,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:50:29,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:50:29,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:29" (1/1) ... [2024-12-06 05:50:29,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a14feb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:29, skipping insertion in model container [2024-12-06 05:50:29,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:29" (1/1) ... [2024-12-06 05:50:29,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:50:30,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:30,528 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:50:30,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:30,684 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:50:30,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30 WrapperNode [2024-12-06 05:50:30,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:30,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:30,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:50:30,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:50:30,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,726 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-06 05:50:30,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:30,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:50:30,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:50:30,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:50:30,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,739 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:50:30,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:50:30,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:50:30,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:50:30,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:30" (1/1) ... [2024-12-06 05:50:30,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:30,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:50:30,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:50:30,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:50:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:50:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:50:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:50:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:50:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:50:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:50:30,913 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:50:30,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:50:31,016 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 05:50:31,016 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:50:31,049 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:50:31,049 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:50:31,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:31 BoogieIcfgContainer [2024-12-06 05:50:31,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:50:31,051 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:50:31,051 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:50:31,060 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:50:31,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:31" (1/1) ... [2024-12-06 05:50:31,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:50:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:50:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 05:50:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 05:50:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 05:50:31,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:50:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:50:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:31,240 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:50:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:31,322 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:50:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:31,350 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:50:31,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:50:31 ImpRootNode [2024-12-06 05:50:31,374 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:50:31,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:50:31,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:50:31,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:50:31,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:31" (3/4) ... [2024-12-06 05:50:31,378 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:50:31,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:50:31,379 INFO L158 Benchmark]: Toolchain (without parser) took 1528.40ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 76.7MB in the end (delta: 37.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-12-06 05:50:31,380 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:31,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 832.60ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 53.2MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 05:50:31,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.94ms. Allocated memory is still 142.6MB. Free memory was 115.1MB in the beginning and 112.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:31,381 INFO L158 Benchmark]: Boogie Preprocessor took 16.66ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:31,381 INFO L158 Benchmark]: RCFGBuilder took 305.74ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 96.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:50:31,382 INFO L158 Benchmark]: CodeCheck took 323.66ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 77.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:50:31,382 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 76.7MB in the end (delta: 608.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:31,385 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: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1565] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 832.60ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 53.2MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.94ms. Allocated memory is still 142.6MB. Free memory was 115.1MB in the beginning and 112.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.66ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.74ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 96.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 323.66ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 77.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 76.7MB in the end (delta: 608.5kB). 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 05:50:31,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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_414665d3-7737-4077-87cb-2abfdd6e8c89/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:50:33,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:50:33,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:50:33,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:50:33,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:50:33,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:50:33,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:50:33,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:50:33,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:50:33,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:50:33,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:50:33,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:50:33,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:50:33,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:50:33,434 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:50:33,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:33,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:50:33,435 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:50:33,436 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:50:33,436 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:50:33,436 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_414665d3-7737-4077-87cb-2abfdd6e8c89/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 -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2024-12-06 05:50:33,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:50:33,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:50:33,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:50:33,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:50:33,706 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:50:33,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-12-06 05:50:36,429 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/3e3e9c25b/f90b387caa5c46db8afcafa78a535f67/FLAG713974e62 [2024-12-06 05:50:36,707 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:50:36,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-12-06 05:50:36,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/3e3e9c25b/f90b387caa5c46db8afcafa78a535f67/FLAG713974e62 [2024-12-06 05:50:36,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/data/3e3e9c25b/f90b387caa5c46db8afcafa78a535f67 [2024-12-06 05:50:36,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:50:36,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:50:36,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:36,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:50:36,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:50:36,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:36" (1/1) ... [2024-12-06 05:50:36,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47263596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:36, skipping insertion in model container [2024-12-06 05:50:36,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:50:36" (1/1) ... [2024-12-06 05:50:36,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:50:37,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:37,452 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:50:37,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:50:37,658 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:50:37,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37 WrapperNode [2024-12-06 05:50:37,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:50:37,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:37,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:50:37,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:50:37,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,699 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2024-12-06 05:50:37,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:50:37,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:50:37,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:50:37,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:50:37,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:50:37,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:50:37,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:50:37,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:50:37,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:50:37" (1/1) ... [2024-12-06 05:50:37,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:50:37,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:50:37,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:50:37,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:50:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:50:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:50:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:50:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:50:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:50:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:50:37,891 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:50:37,892 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:50:38,003 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 05:50:38,003 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:50:38,039 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:50:38,039 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:50:38,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:38 BoogieIcfgContainer [2024-12-06 05:50:38,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:50:38,041 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:50:38,041 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:50:38,050 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:50:38,051 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:38" (1/1) ... [2024-12-06 05:50:38,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:50:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:50:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 05:50:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 05:50:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 05:50:38,096 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:50:38,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:50:38,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:50:38,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:50:38,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:50:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:38,256 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:50:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:38,362 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:50:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:50:38,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:50:38,397 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:50:38,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:50:38 ImpRootNode [2024-12-06 05:50:38,421 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:50:38,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:50:38,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:50:38,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:50:38,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:50:38" (3/4) ... [2024-12-06 05:50:38,425 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:50:38,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:50:38,427 INFO L158 Benchmark]: Toolchain (without parser) took 1679.62ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 66.7MB in the beginning and 112.3MB in the end (delta: -45.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-12-06 05:50:38,427 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:38,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.00ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-12-06 05:50:38,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.48ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:38,428 INFO L158 Benchmark]: Boogie Preprocessor took 24.35ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:38,428 INFO L158 Benchmark]: RCFGBuilder took 314.68ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 42.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:50:38,429 INFO L158 Benchmark]: CodeCheck took 380.52ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 42.3MB in the beginning and 112.9MB in the end (delta: -70.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:38,429 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 112.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:50:38,431 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: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1565] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 910.00ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.48ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.35ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.68ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 42.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 380.52ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 42.3MB in the beginning and 112.9MB in the end (delta: -70.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 112.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:50:38,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414665d3-7737-4077-87cb-2abfdd6e8c89/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