./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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_6ebc05cf-994f-4702-b748-932557fb2e50/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 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:44:08,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:44:08,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:44:08,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:44:08,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:44:08,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:44:08,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:44:08,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:44:08,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:44:08,547 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:44:08,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:44:08,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:44:08,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:44:08,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:44:08,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:44:08,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:44:08,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:44:08,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:44:08,553 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:44:08,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:44:08,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:44:08,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:44:08,558 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:44:08,558 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:44:08,559 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:44:08,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:44:08,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:44:08,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:44:08,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:44:08,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:44:08,560 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:44:08,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:44:08,577 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_6ebc05cf-994f-4702-b748-932557fb2e50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 [2024-11-09 00:44:08,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:44:08,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:44:08,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:44:08,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:44:08,910 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:44:08,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i Unable to find full path for "g++" [2024-11-09 00:44:10,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:44:11,321 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:44:11,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-09 00:44:11,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/e46ed8f76/6629833c397b429e8dc5059ab4db31db/FLAGd2f9bdbb8 [2024-11-09 00:44:11,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/e46ed8f76/6629833c397b429e8dc5059ab4db31db [2024-11-09 00:44:11,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:44:11,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:44:11,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:44:11,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:44:11,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:44:11,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:44:11" (1/1) ... [2024-11-09 00:44:11,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77bd3b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:11, skipping insertion in model container [2024-11-09 00:44:11,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:44:11" (1/1) ... [2024-11-09 00:44:11,500 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:44:12,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:44:12,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:44:12,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:44:12,818 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:44:12,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12 WrapperNode [2024-11-09 00:44:12,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:44:12,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:44:12,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:44:12,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:44:12,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,887 INFO L138 Inliner]: procedures = 498, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-11-09 00:44:12,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:44:12,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:44:12,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:44:12,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:44:12,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:44:12,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:44:12,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:44:12,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:44:12,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:12" (1/1) ... [2024-11-09 00:44:12,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:44:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:44:13,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:44:13,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:44:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:44:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:44:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:44:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:44:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:44:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:44:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:44:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:44:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:44:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:44:13,207 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:44:13,209 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:44:13,344 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-09 00:44:13,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:44:13,386 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:44:13,386 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:44:13,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:13 BoogieIcfgContainer [2024-11-09 00:44:13,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:44:13,388 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:44:13,388 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:44:13,399 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:44:13,399 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:13" (1/1) ... [2024-11-09 00:44:13,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:44:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:44:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:44:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:44:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:44:13,467 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:44:13,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:44:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:13,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:44:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:13,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:44:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:13,953 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:44:13,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:44:13 ImpRootNode [2024-11-09 00:44:13,989 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:44:13,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:44:13,990 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:44:13,990 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:44:13,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:13" (3/4) ... [2024-11-09 00:44:13,996 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:44:13,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:44:13,999 INFO L158 Benchmark]: Toolchain (without parser) took 2584.49ms. Allocated memory is still 188.7MB. Free memory was 159.1MB in the beginning and 113.7MB in the end (delta: 45.4MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,000 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 107.6MB in the beginning and 107.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:44:14,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1400.26ms. Allocated memory is still 188.7MB. Free memory was 158.9MB in the beginning and 94.5MB in the end (delta: 64.4MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.08ms. Allocated memory is still 188.7MB. Free memory was 94.5MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,002 INFO L158 Benchmark]: Boogie Preprocessor took 32.72ms. Allocated memory is still 188.7MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,003 INFO L158 Benchmark]: RCFGBuilder took 461.71ms. Allocated memory is still 188.7MB. Free memory was 90.3MB in the beginning and 140.0MB in the end (delta: -49.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,004 INFO L158 Benchmark]: CodeCheck took 601.15ms. Allocated memory is still 188.7MB. Free memory was 140.0MB in the beginning and 113.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 00:44:14,004 INFO L158 Benchmark]: Witness Printer took 8.48ms. Allocated memory is still 188.7MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:44:14,010 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, 0.1s 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={7181:0}, dataPtr2={7181:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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 134.2MB. Free memory was 107.6MB in the beginning and 107.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1400.26ms. Allocated memory is still 188.7MB. Free memory was 158.9MB in the beginning and 94.5MB in the end (delta: 64.4MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.08ms. Allocated memory is still 188.7MB. Free memory was 94.5MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.72ms. Allocated memory is still 188.7MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.71ms. Allocated memory is still 188.7MB. Free memory was 90.3MB in the beginning and 140.0MB in the end (delta: -49.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * CodeCheck took 601.15ms. Allocated memory is still 188.7MB. Free memory was 140.0MB in the beginning and 113.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 8.48ms. Allocated memory is still 188.7MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:44:14,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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_6ebc05cf-994f-4702-b748-932557fb2e50/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 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:44:16,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:44:16,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:44:16,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:44:16,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:44:16,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:44:16,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:44:16,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:44:16,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:44:16,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:44:16,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:44:16,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:44:16,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:44:16,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:44:16,656 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:44:16,656 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:44:16,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:44:16,662 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:44:16,663 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:44:16,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:44:16,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:44:16,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:44:16,667 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:44:16,667 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:44:16,667 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:44:16,667 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:44:16,667 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:44:16,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:44:16,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:44:16,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:44:16,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:44:16,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:44:16,669 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:44:16,669 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:44:16,669 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:44:16,670 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_6ebc05cf-994f-4702-b748-932557fb2e50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 [2024-11-09 00:44:17,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:44:17,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:44:17,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:44:17,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:44:17,091 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:44:17,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i Unable to find full path for "g++" [2024-11-09 00:44:19,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:44:19,525 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:44:19,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-09 00:44:19,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/ea1134f1a/84c608c369364915982aa24112c9d0e1/FLAGeacd8c8e9 [2024-11-09 00:44:19,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/data/ea1134f1a/84c608c369364915982aa24112c9d0e1 [2024-11-09 00:44:19,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:44:19,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:44:19,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:44:19,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:44:19,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:44:19,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:44:19" (1/1) ... [2024-11-09 00:44:19,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d3da0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:19, skipping insertion in model container [2024-11-09 00:44:19,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:44:19" (1/1) ... [2024-11-09 00:44:19,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:44:20,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:44:20,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:44:20,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:44:21,158 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:44:21,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21 WrapperNode [2024-11-09 00:44:21,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:44:21,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:44:21,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:44:21,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:44:21,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,240 INFO L138 Inliner]: procedures = 503, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-11-09 00:44:21,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:44:21,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:44:21,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:44:21,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:44:21,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:44:21,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:44:21,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:44:21,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:44:21,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:44:21,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:44:21,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:44:21,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:44:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:44:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:44:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:44:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:44:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:44:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:44:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:44:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 00:44:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:44:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 00:44:21,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:44:21,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:44:21,787 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:44:21,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:44:21,884 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:44:21,884 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:44:21,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:21 BoogieIcfgContainer [2024-11-09 00:44:21,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:44:21,886 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:44:21,886 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:44:21,896 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:44:21,896 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:21" (1/1) ... [2024-11-09 00:44:21,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:44:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:44:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:44:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:44:21,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:44:21,992 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:44:21,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:44:21,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:44:21,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:44:21,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:44:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:22,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:44:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:22,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:44:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:44:22,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:44:22,695 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:44:22,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:44:22 ImpRootNode [2024-11-09 00:44:22,736 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:44:22,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:44:22,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:44:22,739 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:44:22,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:44:21" (3/4) ... [2024-11-09 00:44:22,743 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:44:22,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:44:22,746 INFO L158 Benchmark]: Toolchain (without parser) took 3165.80ms. Allocated memory was 67.1MB in the beginning and 102.8MB in the end (delta: 35.7MB). Free memory was 35.4MB in the beginning and 69.8MB in the end (delta: -34.4MB). Peak memory consumption was 475.4kB. Max. memory is 16.1GB. [2024-11-09 00:44:22,746 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:44:22,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.67ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 35.0MB in the beginning and 33.5MB in the end (delta: 1.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-11-09 00:44:22,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.65ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 53.3MB in the end (delta: -19.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-09 00:44:22,749 INFO L158 Benchmark]: Boogie Preprocessor took 33.22ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:44:22,750 INFO L158 Benchmark]: RCFGBuilder took 610.02ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 54.0MB in the end (delta: -2.8MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-09 00:44:22,751 INFO L158 Benchmark]: CodeCheck took 850.47ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 70.3MB in the end (delta: -16.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 00:44:22,753 INFO L158 Benchmark]: Witness Printer took 6.43ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 69.8MB in the end (delta: 553.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:44:22,759 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: 0.8s, 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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 0.34ms. Allocated memory is still 67.1MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.67ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 35.0MB in the beginning and 33.5MB in the end (delta: 1.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.65ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 53.3MB in the end (delta: -19.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.22ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.02ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 54.0MB in the end (delta: -2.8MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * CodeCheck took 850.47ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 70.3MB in the end (delta: -16.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.43ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 69.8MB in the end (delta: 553.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:44:22,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ebc05cf-994f-4702-b748-932557fb2e50/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