./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_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_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/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_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/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_16b6919a-6e57-4841-bc85-b8a3e3402e47/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:58:05,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:58:05,633 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:58:05,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:58:05,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:58:05,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:58:05,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:58:05,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:58:05,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:58:05,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:58:05,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:58:05,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:58:05,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:58:05,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:58:05,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:58:05,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:58:05,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:58:05,679 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:58:05,679 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:58:05,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:58:05,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:58:05,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:58:05,685 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:58:05,685 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:58:05,692 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:58:05,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:58:05,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:58:05,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:58:05,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:58:05,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:58:05,694 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:58:05,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:58:05,695 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_16b6919a-6e57-4841-bc85-b8a3e3402e47/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-08 22:58:06,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:58:06,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:58:06,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:58:06,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:58:06,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:58:06,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i Unable to find full path for "g++" [2024-11-08 22:58:08,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:58:08,532 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:58:08,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-08 22:58:08,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/dce5bbef2/3e5971d81e0e4803a6014fc53a6f78df/FLAGacc86c2b0 [2024-11-08 22:58:08,580 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/dce5bbef2/3e5971d81e0e4803a6014fc53a6f78df [2024-11-08 22:58:08,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:58:08,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:58:08,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:58:08,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:58:08,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:58:08,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:58:08" (1/1) ... [2024-11-08 22:58:08,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a8c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:08, skipping insertion in model container [2024-11-08 22:58:08,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:58:08" (1/1) ... [2024-11-08 22:58:08,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:58:09,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:58:09,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:58:09,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:58:10,057 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:58:10,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10 WrapperNode [2024-11-08 22:58:10,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:58:10,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:58:10,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:58:10,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:58:10,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,135 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2024-11-08 22:58:10,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:58:10,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:58:10,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:58:10,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:58:10,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:58:10,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:58:10,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:58:10,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:58:10,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:58:10,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:58:10,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:58:10,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:58:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:58:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:58:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:58:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:58:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:58:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:58:10,386 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:58:10,389 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:58:10,540 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 22:58:10,540 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:58:10,600 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:58:10,600 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:58:10,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:10 BoogieIcfgContainer [2024-11-08 22:58:10,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:58:10,602 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:58:10,602 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:58:10,612 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:58:10,612 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:10" (1/1) ... [2024-11-08 22:58:10,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:58:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:58:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:58:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:58:10,677 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:58:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:10,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:58:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:11,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:58:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:11,093 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:58:11,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:58:11 ImpRootNode [2024-11-08 22:58:11,129 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:58:11,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:58:11,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:58:11,131 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:58:11,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:10" (3/4) ... [2024-11-08 22:58:11,136 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:58:11,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:58:11,139 INFO L158 Benchmark]: Toolchain (without parser) took 2554.22ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 126.4MB in the beginning and 156.4MB in the end (delta: -30.0MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,139 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 174.1MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:58:11,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1473.20ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 126.1MB in the beginning and 199.4MB in the end (delta: -73.2MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.53ms. Allocated memory is still 247.5MB. Free memory was 199.4MB in the beginning and 196.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,143 INFO L158 Benchmark]: Boogie Preprocessor took 27.80ms. Allocated memory is still 247.5MB. Free memory was 196.2MB in the beginning and 195.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,144 INFO L158 Benchmark]: RCFGBuilder took 435.69ms. Allocated memory is still 247.5MB. Free memory was 195.2MB in the beginning and 178.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,145 INFO L158 Benchmark]: CodeCheck took 527.83ms. Allocated memory is still 247.5MB. Free memory was 178.4MB in the beginning and 157.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 22:58:11,146 INFO L158 Benchmark]: Witness Printer took 7.34ms. Allocated memory is still 247.5MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:58:11,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1592]: 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_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] 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 174.1MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1473.20ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 126.1MB in the beginning and 199.4MB in the end (delta: -73.2MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.53ms. Allocated memory is still 247.5MB. Free memory was 199.4MB in the beginning and 196.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.80ms. Allocated memory is still 247.5MB. Free memory was 196.2MB in the beginning and 195.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.69ms. Allocated memory is still 247.5MB. Free memory was 195.2MB in the beginning and 178.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 527.83ms. Allocated memory is still 247.5MB. Free memory was 178.4MB in the beginning and 157.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.34ms. Allocated memory is still 247.5MB. Free memory is still 156.4MB. 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 22:58:11,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/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_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/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_16b6919a-6e57-4841-bc85-b8a3e3402e47/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:58:13,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:58:13,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:58:13,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:58:13,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:58:13,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:58:13,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:58:13,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:58:13,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:58:13,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:58:13,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:58:13,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:58:13,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:58:13,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:58:13,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:58:13,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:58:13,861 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:58:13,862 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:58:13,862 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:58:13,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:58:13,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:58:13,867 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:58:13,867 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:58:13,867 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:58:13,868 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:58:13,868 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:13,868 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:58:13,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:58:13,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:58:13,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:58:13,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:58:13,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:58:13,872 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:58:13,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:13,873 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:58:13,873 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_16b6919a-6e57-4841-bc85-b8a3e3402e47/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-08 22:58:14,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:58:14,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:58:14,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:58:14,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:58:14,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:58:14,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i Unable to find full path for "g++" [2024-11-08 22:58:16,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:58:16,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:58:16,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-08 22:58:16,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/98cd65d49/da69d43150e94c3890486c1ab00c67d7/FLAG28aa05e0e [2024-11-08 22:58:16,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/data/98cd65d49/da69d43150e94c3890486c1ab00c67d7 [2024-11-08 22:58:16,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:58:16,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:58:16,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:58:16,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:58:16,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:58:16,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:58:16" (1/1) ... [2024-11-08 22:58:16,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7062a6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:16, skipping insertion in model container [2024-11-08 22:58:16,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:58:16" (1/1) ... [2024-11-08 22:58:16,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:58:18,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:58:18,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:58:18,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:58:18,434 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:58:18,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18 WrapperNode [2024-11-08 22:58:18,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:58:18,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:58:18,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:58:18,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:58:18,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,500 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2024-11-08 22:58:18,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:58:18,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:58:18,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:58:18,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:58:18,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:58:18,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:58:18,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:58:18,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:58:18,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:58:18" (1/1) ... [2024-11-08 22:58:18,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:58:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:58:18,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:58:18,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:58:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:58:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:58:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:58:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:58:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:58:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:58:18,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:58:18,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:58:19,097 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 22:58:19,097 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:58:19,192 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:58:19,192 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:58:19,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:19 BoogieIcfgContainer [2024-11-08 22:58:19,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:58:19,193 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:58:19,193 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:58:19,204 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:58:19,205 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:19" (1/1) ... [2024-11-08 22:58:19,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:58:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:58:19,291 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:58:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:58:19,297 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:19,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:19,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:58:19,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:58:19,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:58:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:19,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:58:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:19,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:58:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:58:19,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:58:19,895 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:58:19,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:58:19 ImpRootNode [2024-11-08 22:58:19,937 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:58:19,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:58:19,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:58:19,940 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:58:19,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:58:19" (3/4) ... [2024-11-08 22:58:19,944 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:58:19,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:58:19,946 INFO L158 Benchmark]: Toolchain (without parser) took 3099.22ms. Allocated memory was 67.1MB in the beginning and 104.9MB in the end (delta: 37.7MB). Free memory was 33.7MB in the beginning and 66.7MB in the end (delta: -33.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2024-11-08 22:58:19,947 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:58:19,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1585.18ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 33.5MB in the beginning and 50.9MB in the end (delta: -17.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-08 22:58:19,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.96ms. Allocated memory is still 86.0MB. Free memory was 50.5MB in the beginning and 47.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:58:19,950 INFO L158 Benchmark]: Boogie Preprocessor took 32.73ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:58:19,951 INFO L158 Benchmark]: RCFGBuilder took 657.70ms. Allocated memory is still 86.0MB. Free memory was 45.4MB in the beginning and 46.4MB in the end (delta: -1.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-08 22:58:19,952 INFO L158 Benchmark]: CodeCheck took 743.64ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.4MB in the beginning and 67.3MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:58:19,953 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 544.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:58:19,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1592]: 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_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] 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 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1585.18ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 33.5MB in the beginning and 50.9MB in the end (delta: -17.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.96ms. Allocated memory is still 86.0MB. Free memory was 50.5MB in the beginning and 47.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.73ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 657.70ms. Allocated memory is still 86.0MB. Free memory was 45.4MB in the beginning and 46.4MB in the end (delta: -1.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * CodeCheck took 743.64ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.4MB in the beginning and 67.3MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 544.6kB). 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 22:58:20,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b6919a-6e57-4841-bc85-b8a3e3402e47/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