./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcat.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcat.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02cb0b7d003c65b862775c945403a999f88317049d254b45ea895999d5c859dc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:46:11,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:46:11,945 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2024-11-13 21:46:11,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:46:11,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:46:11,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:46:11,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:46:11,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:46:11,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:46:11,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:46:11,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:46:11,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:46:11,976 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:46:11,976 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:46:11,976 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:46:11,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:46:11,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:46:11,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:46:11,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:46:11,977 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:46:11,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:46:11,977 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_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 02cb0b7d003c65b862775c945403a999f88317049d254b45ea895999d5c859dc [2024-11-13 21:46:12,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:46:12,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:46:12,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:46:12,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:46:12,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:46:12,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/termination-dietlibc/strcat.i Unable to find full path for "g++" [2024-11-13 21:46:14,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:46:14,657 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:46:14,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/sv-benchmarks/c/termination-dietlibc/strcat.i [2024-11-13 21:46:14,681 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/data/4c60890b1/139addb5f04444679120547c0f8671fa/FLAG438a11875 [2024-11-13 21:46:14,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/data/4c60890b1/139addb5f04444679120547c0f8671fa [2024-11-13 21:46:14,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:46:14,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:46:14,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:46:14,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:46:14,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:46:14,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:46:14" (1/1) ... [2024-11-13 21:46:14,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c1ac8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:14, skipping insertion in model container [2024-11-13 21:46:14,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:46:14" (1/1) ... [2024-11-13 21:46:14,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:46:15,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:46:15,112 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:46:15,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:46:15,181 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:46:15,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15 WrapperNode [2024-11-13 21:46:15,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:46:15,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:46:15,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:46:15,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:46:15,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,217 INFO L138 Inliner]: procedures = 114, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2024-11-13 21:46:15,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:46:15,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:46:15,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:46:15,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:46:15,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:46:15,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:46:15,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:46:15,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:46:15,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:46:15,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:46:15,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:46:15,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:46:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:46:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:46:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:46:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:46:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:46:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:46:15,427 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:46:15,429 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:46:15,793 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-13 21:46:15,797 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:46:15,855 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:46:15,855 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 21:46:15,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:15 BoogieIcfgContainer [2024-11-13 21:46:15,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:46:15,856 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:46:15,856 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:46:15,866 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:46:15,866 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:15" (1/1) ... [2024-11-13 21:46:15,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:46:15,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2024-11-13 21:46:15,921 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2024-11-13 21:46:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:46:15,924 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:15,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:16,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 50 states and 62 transitions. [2024-11-13 21:46:16,097 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2024-11-13 21:46:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:46:16,097 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:16,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2024-11-13 21:46:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-13 21:46:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:46:16,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:16,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 48 states and 60 transitions. [2024-11-13 21:46:16,763 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2024-11-13 21:46:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 21:46:16,763 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 48 states and 59 transitions. [2024-11-13 21:46:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2024-11-13 21:46:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:46:17,185 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:17,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 48 states and 58 transitions. [2024-11-13 21:46:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2024-11-13 21:46:17,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:46:17,299 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:17,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:46:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:46:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:46:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 47 states and 57 transitions. [2024-11-13 21:46:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2024-11-13 21:46:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:46:17,425 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:46:17,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:46:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:17,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:46:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:17,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:46:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:46:17,542 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-13 21:46:17,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:46:17 ImpRootNode [2024-11-13 21:46:17,568 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:46:17,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:46:17,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:46:17,569 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:46:17,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:46:15" (3/4) ... [2024-11-13 21:46:17,571 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:46:17,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:46:17,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:46:17,616 INFO L158 Benchmark]: Toolchain (without parser) took 2909.27ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 65.4MB in the end (delta: 52.8MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-13 21:46:17,617 INFO L158 Benchmark]: CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:17,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.74ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 101.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:46:17,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.51ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:17,618 INFO L158 Benchmark]: Boogie Preprocessor took 46.86ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:17,620 INFO L158 Benchmark]: RCFGBuilder took 589.77ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 78.7MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:46:17,620 INFO L158 Benchmark]: CodeCheck took 1711.57ms. Allocated memory is still 142.6MB. Free memory was 78.7MB in the beginning and 66.8MB in the end (delta: 11.9MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-11-13 21:46:17,621 INFO L158 Benchmark]: Witness Printer took 46.49ms. Allocated memory is still 142.6MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:46:17,627 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 1 procedures, 49 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 18 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L525] int in_len = __VERIFIER_nondet_int(); [L526] COND FALSE !(in_len < 1) [L527] char* in = __builtin_alloca (in_len); VAL [in={3:0}, in_len=1] [L528] in[in_len-1]=0 [L529] int out_len = __VERIFIER_nondet_int(); [L530] COND FALSE !(out_len < 1) [L531] int out_end = __VERIFIER_nondet_int(); [L532] COND FALSE !(out_len < out_end+in_len) [L533] char* out = __builtin_alloca (out_len); VAL [in={3:0}, out={2:0}, out_end=-1] [L534] out[out_end]=0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.74ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 101.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.51ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.86ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 589.77ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 78.7MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1711.57ms. Allocated memory is still 142.6MB. Free memory was 78.7MB in the beginning and 66.8MB in the end (delta: 11.9MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 46.49ms. Allocated memory is still 142.6MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:46:17,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5553b432-1b42-4aa8-87a3-0d758add3ae3/bin/ukojak-verify-EEHR8qb7sm/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)