./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:45:28,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:45:28,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 00:45:28,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:45:28,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:45:28,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:45:28,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:45:28,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:45:28,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:45:28,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:45:28,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:45:28,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:45:28,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:45:28,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:45:28,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:45:28,364 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:45:28,364 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:45:28,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:45:28,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:45:28,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:45:28,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:45:28,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:45:28,365 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:45:28,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:45:28,365 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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-12-06 00:45:28,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:45:28,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:45:28,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:45:28,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:45:28,648 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:45:28,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-12-06 00:45:31,328 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/45358560d/41b54f008d6040cfab73bd33990b7393/FLAG492411f0c [2024-12-06 00:45:31,610 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:45:31,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-12-06 00:45:31,630 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/45358560d/41b54f008d6040cfab73bd33990b7393/FLAG492411f0c [2024-12-06 00:45:31,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/45358560d/41b54f008d6040cfab73bd33990b7393 [2024-12-06 00:45:31,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:45:31,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:45:31,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:45:31,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:45:31,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:45:31,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:45:31" (1/1) ... [2024-12-06 00:45:31,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a4c87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:31, skipping insertion in model container [2024-12-06 00:45:31,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:45:31" (1/1) ... [2024-12-06 00:45:31,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:45:32,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:45:32,373 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:45:32,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:45:32,564 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:45:32,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32 WrapperNode [2024-12-06 00:45:32,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:45:32,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:45:32,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:45:32,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:45:32,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,602 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 67 [2024-12-06 00:45:32,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:45:32,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:45:32,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:45:32,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:45:32,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,618 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:45:32,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:45:32,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:45:32,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:45:32,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:45:32,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:45:32,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:45:32,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:45:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:45:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:45:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:45:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:45:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:45:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:45:32,792 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:45:32,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:45:32,905 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-06 00:45:32,905 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:45:32,942 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:45:32,942 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:45:32,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:32 BoogieIcfgContainer [2024-12-06 00:45:32,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:45:32,944 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:45:32,944 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:45:32,951 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:45:32,952 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:32" (1/1) ... [2024-12-06 00:45:32,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:45:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:45:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:45:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:45:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:45:33,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:45:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:45:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:33,133 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:45:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:33,224 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:45:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:33,253 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 00:45:33,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:45:33 ImpRootNode [2024-12-06 00:45:33,278 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:45:33,278 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:45:33,279 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:45:33,279 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:45:33,279 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:32" (3/4) ... [2024-12-06 00:45:33,282 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:45:33,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:45:33,284 INFO L158 Benchmark]: Toolchain (without parser) took 1635.41ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 73.7MB in the end (delta: 39.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-12-06 00:45:33,284 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:33,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 915.91ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.0MB in the end (delta: 1.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-12-06 00:45:33,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.85ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 108.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:33,286 INFO L158 Benchmark]: Boogie Preprocessor took 22.63ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:33,286 INFO L158 Benchmark]: RCFGBuilder took 316.48ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 93.0MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:45:33,287 INFO L158 Benchmark]: CodeCheck took 334.15ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 73.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:45:33,287 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 142.6MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:33,289 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] 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 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 915.91ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.0MB in the end (delta: 1.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.85ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 108.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.63ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.48ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 93.0MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 334.15ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 73.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 142.6MB. Free memory is still 73.7MB. 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 00:45:33,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:45:35,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:45:35,428 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 00:45:35,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:45:35,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:45:35,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:45:35,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:45:35,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:45:35,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:45:35,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:45:35,461 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:45:35,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:45:35,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:45:35,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:45:35,463 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:45:35,463 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:45:35,463 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:45:35,463 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_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-12-06 00:45:35,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:45:35,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:45:35,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:45:35,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:45:35,751 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:45:35,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-12-06 00:45:38,479 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/520adecd9/af4dcce8a5a04499b2722d44b623c5b2/FLAGe4131af0b [2024-12-06 00:45:38,777 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:45:38,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-12-06 00:45:38,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/520adecd9/af4dcce8a5a04499b2722d44b623c5b2/FLAGe4131af0b [2024-12-06 00:45:38,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/data/520adecd9/af4dcce8a5a04499b2722d44b623c5b2 [2024-12-06 00:45:38,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:45:38,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:45:38,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:45:38,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:45:38,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:45:38,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:45:38" (1/1) ... [2024-12-06 00:45:38,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa49cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:38, skipping insertion in model container [2024-12-06 00:45:38,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:45:38" (1/1) ... [2024-12-06 00:45:38,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:45:39,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:45:39,604 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:45:39,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:45:39,800 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:45:39,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39 WrapperNode [2024-12-06 00:45:39,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:45:39,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:45:39,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:45:39,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:45:39,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,841 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 66 [2024-12-06 00:45:39,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:45:39,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:45:39,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:45:39,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:45:39,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,859 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:45:39,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:45:39,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:45:39,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:45:39,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:45:39" (1/1) ... [2024-12-06 00:45:39,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:45:39,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:45:39,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:45:39,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:45:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:45:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:45:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:45:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:45:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:45:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:45:40,041 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:45:40,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:45:40,159 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-12-06 00:45:40,159 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:45:40,198 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:45:40,198 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:45:40,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:40 BoogieIcfgContainer [2024-12-06 00:45:40,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:45:40,200 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:45:40,200 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:45:40,210 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:45:40,210 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:40" (1/1) ... [2024-12-06 00:45:40,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:45:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:45:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:45:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:45:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:45:40,265 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:45:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:45:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:45:40,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:45:40,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:45:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:40,420 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:45:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:40,544 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:45:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:45:40,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:45:40,579 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 00:45:40,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:45:40 ImpRootNode [2024-12-06 00:45:40,604 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:45:40,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:45:40,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:45:40,605 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:45:40,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:45:40" (3/4) ... [2024-12-06 00:45:40,607 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:45:40,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:45:40,608 INFO L158 Benchmark]: Toolchain (without parser) took 1787.41ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 52.9MB in the end (delta: 13.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-12-06 00:45:40,609 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:40,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 978.01ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-12-06 00:45:40,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.60ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:40,610 INFO L158 Benchmark]: Boogie Preprocessor took 26.71ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:40,610 INFO L158 Benchmark]: RCFGBuilder took 330.10ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 40.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:45:40,610 INFO L158 Benchmark]: CodeCheck took 404.48ms. Allocated memory is still 92.3MB. Free memory was 40.9MB in the beginning and 53.0MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:40,611 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 92.3MB. Free memory was 53.0MB in the beginning and 52.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:45:40,613 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] 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 0.46ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 978.01ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.60ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.71ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.10ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 40.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 404.48ms. Allocated memory is still 92.3MB. Free memory was 40.9MB in the beginning and 53.0MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 92.3MB. Free memory was 53.0MB in the beginning and 52.9MB 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 00:45:40,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac32f-5b2f-48f2-82ac-f2c8e379ded0/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