./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk --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 e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:24:54,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:24:54,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:24:54,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:24:54,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:24:55,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:24:55,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:24:55,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:24:55,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:24:55,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:24:55,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:24:55,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:24:55,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:24:55,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:24:55,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:24:55,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:24:55,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:24:55,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:24:55,042 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:24:55,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:24:55,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:24:55,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:24:55,047 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:24:55,047 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:24:55,048 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:24:55,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:24:55,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:55,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:24:55,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:24:55,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:24:55,050 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:24:55,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:24:55,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31 [2024-11-08 22:24:55,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:24:55,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:24:55,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:24:55,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:24:55,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:24:55,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i Unable to find full path for "g++" [2024-11-08 22:24:57,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:24:57,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:24:57,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i [2024-11-08 22:24:57,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/d6aebb305/f3fc3c6350d749ba9995edaaebf98428/FLAGc63602488 [2024-11-08 22:24:57,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/d6aebb305/f3fc3c6350d749ba9995edaaebf98428 [2024-11-08 22:24:57,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:24:57,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:24:57,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:57,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:24:57,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:24:57,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:57" (1/1) ... [2024-11-08 22:24:57,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f49ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:57, skipping insertion in model container [2024-11-08 22:24:57,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:57" (1/1) ... [2024-11-08 22:24:58,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:24:59,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:59,093 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:24:59,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:59,432 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:24:59,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59 WrapperNode [2024-11-08 22:24:59,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:59,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:59,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:24:59,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:24:59,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,516 INFO L138 Inliner]: procedures = 498, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-08 22:24:59,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:59,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:24:59,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:24:59,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:24:59,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:24:59,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:24:59,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:24:59,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:24:59,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:59" (1/1) ... [2024-11-08 22:24:59,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:59,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:24:59,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:24:59,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:24:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:24:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:24:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:24:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:24:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:24:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:24:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:24:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:24:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:24:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:24:59,807 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:24:59,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:24:59,945 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 22:24:59,945 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:25:00,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:25:00,009 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:25:00,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:00 BoogieIcfgContainer [2024-11-08 22:25:00,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:25:00,011 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:25:00,011 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:25:00,022 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:25:00,022 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:00" (1/1) ... [2024-11-08 22:25:00,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:25:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:25:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:25:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:25:00,114 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:25:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:00,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:00,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:00,548 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:25:00,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:25:00 ImpRootNode [2024-11-08 22:25:00,581 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:25:00,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:25:00,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:25:00,583 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:25:00,584 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:00" (3/4) ... [2024-11-08 22:25:00,587 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:25:00,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:25:00,590 INFO L158 Benchmark]: Toolchain (without parser) took 2654.59ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 84.2MB in the end (delta: 47.2MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-08 22:25:00,590 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:00,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1500.58ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 127.4MB in the end (delta: 3.6MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2024-11-08 22:25:00,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.23ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 124.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:00,593 INFO L158 Benchmark]: Boogie Preprocessor took 41.86ms. Allocated memory is still 163.6MB. Free memory was 124.6MB in the beginning and 122.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:00,593 INFO L158 Benchmark]: RCFGBuilder took 449.19ms. Allocated memory is still 163.6MB. Free memory was 122.5MB in the beginning and 106.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:25:00,595 INFO L158 Benchmark]: CodeCheck took 570.03ms. Allocated memory is still 163.6MB. Free memory was 106.5MB in the beginning and 84.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 22:25:00,596 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 163.6MB. Free memory was 84.6MB in the beginning and 84.2MB in the end (delta: 464.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:00,600 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1560. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_sub_34_unionType myUnion; [L1557] data = 0 [L1559] 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, myUnion={12619:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1500.58ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 127.4MB in the end (delta: 3.6MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.23ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 124.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.86ms. Allocated memory is still 163.6MB. Free memory was 124.6MB in the beginning and 122.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.19ms. Allocated memory is still 163.6MB. Free memory was 122.5MB in the beginning and 106.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 570.03ms. Allocated memory is still 163.6MB. Free memory was 106.5MB in the beginning and 84.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 163.6MB. Free memory was 84.6MB in the beginning and 84.2MB in the end (delta: 464.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:25:00,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk --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 e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:25:03,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:25:03,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:25:03,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:25:03,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:25:03,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:25:03,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:25:03,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:25:03,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:25:03,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:25:03,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:25:03,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:25:03,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:25:03,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:25:03,480 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:25:03,480 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:25:03,481 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:25:03,484 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:25:03,484 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:25:03,484 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:25:03,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:25:03,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:25:03,486 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:25:03,486 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:25:03,486 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:25:03,486 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:03,487 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:25:03,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:25:03,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:25:03,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:25:03,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:25:03,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:25:03,492 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:25:03,493 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:03,493 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:25:03,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31 [2024-11-08 22:25:03,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:25:03,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:25:03,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:25:03,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:25:03,896 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:25:03,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i Unable to find full path for "g++" [2024-11-08 22:25:05,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:25:06,320 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:25:06,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i [2024-11-08 22:25:06,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/632b2314b/b02803b2db0d4dbb834bf52401fa5eb7/FLAG9b4d4a7c7 [2024-11-08 22:25:06,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/data/632b2314b/b02803b2db0d4dbb834bf52401fa5eb7 [2024-11-08 22:25:06,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:25:06,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:25:06,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:25:06,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:25:06,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:25:06,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:25:06" (1/1) ... [2024-11-08 22:25:06,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6eb0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:06, skipping insertion in model container [2024-11-08 22:25:06,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:25:06" (1/1) ... [2024-11-08 22:25:06,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:25:07,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:25:07,655 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:25:07,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:25:07,981 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:25:07,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07 WrapperNode [2024-11-08 22:25:07,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:25:07,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:25:07,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:25:07,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:25:07,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,071 INFO L138 Inliner]: procedures = 503, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-08 22:25:08,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:25:08,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:25:08,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:25:08,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:25:08,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:25:08,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:25:08,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:25:08,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:25:08,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:25:07" (1/1) ... [2024-11-08 22:25:08,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:25:08,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:25:08,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:25:08,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:25:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:25:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:25:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 22:25:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:25:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 22:25:08,375 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:25:08,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:25:08,572 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 22:25:08,572 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:25:08,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:25:08,643 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:25:08,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:08 BoogieIcfgContainer [2024-11-08 22:25:08,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:25:08,645 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:25:08,645 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:25:08,655 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:25:08,655 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:08" (1/1) ... [2024-11-08 22:25:08,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:25:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:25:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:25:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:25:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:25:08,738 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:25:08,739 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:25:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:25:08,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:25:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:25:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:09,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:09,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:25:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:25:09,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 22:25:09,367 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:25:09,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:25:09 ImpRootNode [2024-11-08 22:25:09,405 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:25:09,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:25:09,408 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:25:09,408 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:25:09,409 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:25:08" (3/4) ... [2024-11-08 22:25:09,413 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:25:09,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:25:09,415 INFO L158 Benchmark]: Toolchain (without parser) took 2911.68ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.2MB in the beginning and 65.9MB in the end (delta: -676.3kB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,416 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:09,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1476.16ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 41.7MB in the end (delta: 23.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.44ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 63.8MB in the end (delta: -22.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,418 INFO L158 Benchmark]: Boogie Preprocessor took 52.17ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,418 INFO L158 Benchmark]: RCFGBuilder took 517.23ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 43.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,420 INFO L158 Benchmark]: CodeCheck took 760.96ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 66.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:25:09,421 INFO L158 Benchmark]: Witness Printer took 6.95ms. Allocated memory is still 111.1MB. Free memory was 66.6MB in the beginning and 65.9MB in the end (delta: 666.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:25:09,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1560. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_sub_34_unionType myUnion; [L1557] data = 0 [L1559] 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, myUnion={5:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1476.16ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 41.7MB in the end (delta: 23.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.44ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 63.8MB in the end (delta: -22.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.17ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.23ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 43.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 760.96ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 66.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.95ms. Allocated memory is still 111.1MB. Free memory was 66.6MB in the beginning and 65.9MB in the end (delta: 666.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:25:09,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f94d0aa-9af0-4419-bf8a-b863c70ae0f8/bin/ukojak-verify-ImItNfHLgk/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