./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eda12160154353cf185ccbc509ca51f05ac56926c1784c68cf31f517bec05989 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:13:31,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:13:31,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 00:13:31,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:13:31,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:13:31,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:13:31,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:13:31,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:13:31,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:13:31,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:13:31,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:13:31,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:13:31,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:13:31,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:13:31,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:13:31,933 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:13:31,933 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:13:31,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:13:31,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:13:31,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda12160154353cf185ccbc509ca51f05ac56926c1784c68cf31f517bec05989 [2024-12-06 00:13:32,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:13:32,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:13:32,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:13:32,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:13:32,138 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:13:32,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i [2024-12-06 00:13:34,726 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/3bb72c227/dece359799584a60bed87482903d7648/FLAG2203e8826 [2024-12-06 00:13:35,051 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:13:35,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i [2024-12-06 00:13:35,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/3bb72c227/dece359799584a60bed87482903d7648/FLAG2203e8826 [2024-12-06 00:13:35,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/3bb72c227/dece359799584a60bed87482903d7648 [2024-12-06 00:13:35,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:13:35,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:13:35,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:13:35,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:13:35,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:13:35,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:13:35" (1/1) ... [2024-12-06 00:13:35,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc8f0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:35, skipping insertion in model container [2024-12-06 00:13:35,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:13:35" (1/1) ... [2024-12-06 00:13:35,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:13:35,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:13:35,940 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:13:36,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:13:36,106 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:13:36,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36 WrapperNode [2024-12-06 00:13:36,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:13:36,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:13:36,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:13:36,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:13:36,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,144 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-12-06 00:13:36,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:13:36,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:13:36,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:13:36,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:13:36,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,159 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:13:36,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:13:36,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:13:36,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:13:36,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:13:36,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:13:36,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:13:36,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:13:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:13:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:13:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:13:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:13:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:13:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:13:36,339 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:13:36,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:13:36,434 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 00:13:36,435 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:13:36,465 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:13:36,465 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:13:36,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:36 BoogieIcfgContainer [2024-12-06 00:13:36,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:13:36,466 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:13:36,467 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:13:36,474 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:13:36,474 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:36" (1/1) ... [2024-12-06 00:13:36,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:13:36,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:13:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:13:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:13:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:13:36,520 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:13:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:13:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:13:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:13:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:13:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 00:13:36,776 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 00:13:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:13:36,776 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:13:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:13:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:36,807 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:13:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:36,877 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:13:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:36,906 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 00:13:36,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:13:36 ImpRootNode [2024-12-06 00:13:36,931 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:13:36,932 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:13:36,932 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:13:36,932 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:13:36,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:36" (3/4) ... [2024-12-06 00:13:36,935 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:13:36,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:13:36,936 INFO L158 Benchmark]: Toolchain (without parser) took 1620.21ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 75.6MB in the end (delta: 13.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-12-06 00:13:36,937 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:36,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.25ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 72.9MB in the end (delta: 16.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-12-06 00:13:36,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:13:36,938 INFO L158 Benchmark]: Boogie Preprocessor took 21.33ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 69.4MB in the end (delta: 998.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:36,938 INFO L158 Benchmark]: RCFGBuilder took 299.21ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 55.4MB in the end (delta: 13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:36,938 INFO L158 Benchmark]: CodeCheck took 464.72ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 75.6MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:36,939 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 75.6MB in the end (delta: 11.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:36,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] 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 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.25ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 72.9MB in the end (delta: 16.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.33ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 69.4MB in the end (delta: 998.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.21ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 55.4MB in the end (delta: 13.5MB). There was no memory consumed. Max. memory is 16.1GB. * CodeCheck took 464.72ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 75.6MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 75.6MB in the end (delta: 11.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 00:13:36,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eda12160154353cf185ccbc509ca51f05ac56926c1784c68cf31f517bec05989 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:13:38,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:13:38,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 00:13:38,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:13:38,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:13:38,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:13:38,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:13:38,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:13:38,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:13:38,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:13:38,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:13:38,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:13:38,995 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:13:38,995 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:13:38,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:13:38,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:13:38,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda12160154353cf185ccbc509ca51f05ac56926c1784c68cf31f517bec05989 [2024-12-06 00:13:39,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:13:39,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:13:39,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:13:39,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:13:39,247 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:13:39,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i [2024-12-06 00:13:41,914 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/0448516a9/78ab1bf7ed5947148b66a2c54afc26a3/FLAGb2ce18f10 [2024-12-06 00:13:42,181 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:13:42,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_42_bad.i [2024-12-06 00:13:42,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/0448516a9/78ab1bf7ed5947148b66a2c54afc26a3/FLAGb2ce18f10 [2024-12-06 00:13:42,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/data/0448516a9/78ab1bf7ed5947148b66a2c54afc26a3 [2024-12-06 00:13:42,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:13:42,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:13:42,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:13:42,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:13:42,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:13:42,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:13:42" (1/1) ... [2024-12-06 00:13:42,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2721bbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:42, skipping insertion in model container [2024-12-06 00:13:42,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:13:42" (1/1) ... [2024-12-06 00:13:42,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:13:42,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:13:42,895 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:13:42,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:13:43,100 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:13:43,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43 WrapperNode [2024-12-06 00:13:43,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:13:43,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:13:43,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:13:43,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:13:43,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,144 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-06 00:13:43,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:13:43,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:13:43,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:13:43,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:13:43,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:13:43,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:13:43,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:13:43,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:13:43,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:13:43,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:13:43,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:13:43,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:13:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 00:13:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 00:13:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:13:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:13:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:13:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:13:43,347 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:13:43,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:13:43,457 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-06 00:13:43,458 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:13:43,492 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:13:43,492 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:13:43,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:43 BoogieIcfgContainer [2024-12-06 00:13:43,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:13:43,493 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:13:43,493 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:13:43,500 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:13:43,500 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:43" (1/1) ... [2024-12-06 00:13:43,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:13:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:13:43,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 00:13:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 00:13:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:13:43,545 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:13:43,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:13:43,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:13:43,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:13:43,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:13:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:13:43,665 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:13:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:13:43,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 00:13:43,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:13:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:13:43,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:13:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:13:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 00:13:43,749 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 00:13:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:13:43,749 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:13:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:13:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:13:43,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:13:43,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 00:13:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:43,871 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:13:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:43,962 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:13:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:13:43,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-12-06 00:13:43,991 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 00:13:44,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:13:44 ImpRootNode [2024-12-06 00:13:44,012 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:13:44,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:13:44,012 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:13:44,012 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:13:44,013 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:13:43" (3/4) ... [2024-12-06 00:13:44,015 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:13:44,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:13:44,016 INFO L158 Benchmark]: Toolchain (without parser) took 1796.85ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 43.1MB in the end (delta: 23.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-12-06 00:13:44,017 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:44,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 880.82ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.4MB in the end (delta: 3.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-12-06 00:13:44,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.92ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 59.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:44,017 INFO L158 Benchmark]: Boogie Preprocessor took 26.58ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:44,018 INFO L158 Benchmark]: RCFGBuilder took 319.65ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 42.1MB in the end (delta: 15.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:13:44,018 INFO L158 Benchmark]: CodeCheck took 518.56ms. Allocated memory is still 92.3MB. Free memory was 42.1MB in the beginning and 43.6MB in the end (delta: -1.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-12-06 00:13:44,019 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:13:44,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] 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 0.30ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 880.82ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.4MB in the end (delta: 3.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.92ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 59.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.58ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.65ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 42.1MB in the end (delta: 15.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 518.56ms. Allocated memory is still 92.3MB. Free memory was 42.1MB in the beginning and 43.6MB in the end (delta: -1.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 00:13:44,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df56298d-54b1-404c-9aaa-7c063db468e3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample