./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:26:03,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:26:04,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:26:04,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:26:04,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:26:04,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:26:04,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:26:04,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:26:04,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:26:04,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:26:04,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:26:04,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:26:04,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:26:04,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:26:04,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:26:04,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:26:04,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:26:04,126 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:26:04,127 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:26:04,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:26:04,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:26:04,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:26:04,128 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:26:04,128 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:26:04,129 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:26:04,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:26:04,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:04,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:26:04,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:26:04,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:26:04,152 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:26:04,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:26:04,152 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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2024-11-08 22:26:04,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:26:04,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:26:04,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:26:04,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:26:04,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:26:04,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i Unable to find full path for "g++" [2024-11-08 22:26:06,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:26:07,098 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:26:07,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-08 22:26:07,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/b12a62a6c/9ea7e2460f5c432098353eb7b5dff0ee/FLAGd4a890fd3 [2024-11-08 22:26:07,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/b12a62a6c/9ea7e2460f5c432098353eb7b5dff0ee [2024-11-08 22:26:07,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:26:07,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:26:07,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:07,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:26:07,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:26:07,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:07" (1/1) ... [2024-11-08 22:26:07,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1242c417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:07, skipping insertion in model container [2024-11-08 22:26:07,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:07" (1/1) ... [2024-11-08 22:26:07,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:26:08,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:08,372 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:26:08,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:08,688 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:26:08,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08 WrapperNode [2024-11-08 22:26:08,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:08,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:08,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:26:08,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:26:08,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,778 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-08 22:26:08,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:08,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:26:08,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:26:08,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:26:08,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:26:08,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:26:08,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:26:08,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:26:08,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:08" (1/1) ... [2024-11-08 22:26:08,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:08,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:26:08,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:26:08,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:26:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:26:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:26:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:26:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:26:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:26:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:26:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:26:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:26:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:26:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:26:09,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:26:09,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:26:09,224 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 22:26:09,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:26:09,285 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:26:09,285 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:26:09,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:09 BoogieIcfgContainer [2024-11-08 22:26:09,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:26:09,287 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:26:09,287 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:26:09,299 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:26:09,299 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:09" (1/1) ... [2024-11-08 22:26:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:26:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:26:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:26:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:26:09,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:26:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:09,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:26:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:09,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:26:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:09,752 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:26:09,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:26:09 ImpRootNode [2024-11-08 22:26:09,787 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:26:09,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:26:09,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:26:09,790 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:26:09,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:09" (3/4) ... [2024-11-08 22:26:09,794 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:26:09,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:26:09,797 INFO L158 Benchmark]: Toolchain (without parser) took 2650.12ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 92.0MB in the beginning and 79.8MB in the end (delta: 12.1MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2024-11-08 22:26:09,797 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 136.3MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:09,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1542.10ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 91.5MB in the beginning and 125.9MB in the end (delta: -34.4MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-11-08 22:26:09,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.39ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 122.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:26:09,801 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 184.5MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:09,802 INFO L158 Benchmark]: RCFGBuilder took 458.65ms. Allocated memory is still 184.5MB. Free memory was 121.8MB in the beginning and 104.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:26:09,803 INFO L158 Benchmark]: CodeCheck took 500.36ms. Allocated memory is still 184.5MB. Free memory was 103.9MB in the beginning and 79.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 22:26:09,803 INFO L158 Benchmark]: Witness Printer took 8.14ms. Allocated memory is still 184.5MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:09,823 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: 0.4s, 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, 0.1s 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: 1579]: 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 large string literal at line 1569, 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_sub_64_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={31113:0}, 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_sub_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] 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 0.40ms. Allocated memory is still 136.3MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1542.10ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 91.5MB in the beginning and 125.9MB in the end (delta: -34.4MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.39ms. Allocated memory is still 184.5MB. Free memory was 125.9MB in the beginning and 122.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 184.5MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.65ms. Allocated memory is still 184.5MB. Free memory was 121.8MB in the beginning and 104.9MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 500.36ms. Allocated memory is still 184.5MB. Free memory was 103.9MB in the beginning and 79.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 8.14ms. Allocated memory is still 184.5MB. Free memory is still 79.8MB. 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 22:26:09,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:26:12,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:26:12,440 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:26:12,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:26:12,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:26:12,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:26:12,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:26:12,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:26:12,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:26:12,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:26:12,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:26:12,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:26:12,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:26:12,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:26:12,518 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:26:12,519 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:26:12,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:26:12,520 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:26:12,520 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:26:12,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:26:12,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:26:12,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:26:12,526 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:26:12,526 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:26:12,526 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:26:12,527 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:12,527 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:26:12,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:26:12,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:12,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:26:12,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:26:12,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:26:12,530 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:26:12,531 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:12,531 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:26:12,532 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_45487e18-0860-4e5c-bc11-d2de2eae7e2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2024-11-08 22:26:12,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:26:12,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:26:12,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:26:12,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:26:12,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:26:12,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i Unable to find full path for "g++" [2024-11-08 22:26:15,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:26:16,024 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:26:16,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-08 22:26:16,065 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/cd792fe1e/ec80eb7d1e8c4be79a83408944a1e223/FLAG33d33e74f [2024-11-08 22:26:16,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/data/cd792fe1e/ec80eb7d1e8c4be79a83408944a1e223 [2024-11-08 22:26:16,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:26:16,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:26:16,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:16,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:26:16,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:26:16,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:16" (1/1) ... [2024-11-08 22:26:16,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c12d8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:16, skipping insertion in model container [2024-11-08 22:26:16,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:16" (1/1) ... [2024-11-08 22:26:16,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:26:17,252 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 22:26:17,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:17,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:26:17,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:17,501 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:26:17,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17 WrapperNode [2024-11-08 22:26:17,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:17,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:17,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:26:17,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:26:17,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,563 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-08 22:26:17,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:17,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:26:17,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:26:17,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:26:17,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:26:17,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:26:17,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:26:17,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:26:17,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:17" (1/1) ... [2024-11-08 22:26:17,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:17,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:26:17,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:26:17,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:26:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:26:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:26:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:26:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:26:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:26:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 22:26:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:26:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 22:26:17,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:26:17,852 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:26:18,037 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 22:26:18,038 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:26:18,099 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:26:18,099 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:26:18,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:18 BoogieIcfgContainer [2024-11-08 22:26:18,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:26:18,101 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:26:18,101 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:26:18,112 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:26:18,112 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:18" (1/1) ... [2024-11-08 22:26:18,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:26:18,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:26:18,176 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:26:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:26:18,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:18,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:26:18,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:26:18,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:26:18,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:26:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:18,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:26:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:18,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:26:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:26:18,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:26:18,800 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:26:18,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:26:18 ImpRootNode [2024-11-08 22:26:18,839 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:26:18,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:26:18,843 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:26:18,843 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:26:18,843 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:18" (3/4) ... [2024-11-08 22:26:18,846 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:26:18,847 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:26:18,849 INFO L158 Benchmark]: Toolchain (without parser) took 2751.43ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 65.9MB in the beginning and 81.7MB in the end (delta: -15.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-11-08 22:26:18,849 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:18,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1401.61ms. Allocated memory is still 94.4MB. Free memory was 65.7MB in the beginning and 49.1MB in the end (delta: 16.6MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-11-08 22:26:18,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.81ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 45.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:26:18,852 INFO L158 Benchmark]: Boogie Preprocessor took 33.37ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:26:18,853 INFO L158 Benchmark]: RCFGBuilder took 501.94ms. Allocated memory is still 94.4MB. Free memory was 43.7MB in the beginning and 51.9MB in the end (delta: -8.2MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-11-08 22:26:18,853 INFO L158 Benchmark]: CodeCheck took 738.50ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 51.9MB in the beginning and 81.7MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:18,854 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:26:18,858 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, 0.1s 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: 1579]: 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 large string literal at line 1569, 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_sub_64_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={5:0}, 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_sub_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] 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 65.0MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1401.61ms. Allocated memory is still 94.4MB. Free memory was 65.7MB in the beginning and 49.1MB in the end (delta: 16.6MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.81ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 45.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.37ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.94ms. Allocated memory is still 94.4MB. Free memory was 43.7MB in the beginning and 51.9MB in the end (delta: -8.2MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * CodeCheck took 738.50ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 51.9MB in the beginning and 81.7MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:26:18,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45487e18-0860-4e5c-bc11-d2de2eae7e2e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample