./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcat_short.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_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/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_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcat_short.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/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_e411e3aa-f2e8-4184-b189-0425e015fb6e/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 158b8eceb7a2c63c12c3387b55d354bdd17828549d94e13b163dfb4b9ee8e19c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:56:12,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:56:12,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2024-11-13 16:56:12,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:56:12,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:56:12,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:56:12,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:56:12,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:56:12,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:56:12,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:56:12,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:56:12,650 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:56:12,650 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:56:12,650 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 16:56:12,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:56:12,651 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:56:12,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:12,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:56:12,651 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:56:12,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:56:12,652 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_e411e3aa-f2e8-4184-b189-0425e015fb6e/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 -> 158b8eceb7a2c63c12c3387b55d354bdd17828549d94e13b163dfb4b9ee8e19c [2024-11-13 16:56:12,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:56:13,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:56:13,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:56:13,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:56:13,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:56:13,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/termination-dietlibc/strcat_short.i Unable to find full path for "g++" [2024-11-13 16:56:14,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:56:15,324 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:56:15,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/sv-benchmarks/c/termination-dietlibc/strcat_short.i [2024-11-13 16:56:15,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/data/e6489bca7/7cbdc6345c564cbf8bf930c7c7055ea3/FLAGd1fb5e873 [2024-11-13 16:56:15,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/data/e6489bca7/7cbdc6345c564cbf8bf930c7c7055ea3 [2024-11-13 16:56:15,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:56:15,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:56:15,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:15,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:56:15,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:56:15,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:15" (1/1) ... [2024-11-13 16:56:15,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4e82a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:15, skipping insertion in model container [2024-11-13 16:56:15,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:15" (1/1) ... [2024-11-13 16:56:15,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:56:16,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:16,031 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:56:16,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:16,135 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:56:16,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16 WrapperNode [2024-11-13 16:56:16,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:16,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:16,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:56:16,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:56:16,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,189 INFO L138 Inliner]: procedures = 114, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2024-11-13 16:56:16,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:16,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:56:16,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:56:16,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:56:16,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:56:16,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:56:16,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:56:16,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:56:16,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:16,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:56:16,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:56:16,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:56:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:56:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:56:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:56:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:56:16,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:56:16,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:56:16,365 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:56:16,367 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:56:16,681 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-13 16:56:16,681 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:56:16,740 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:56:16,740 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:56:16,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:16 BoogieIcfgContainer [2024-11-13 16:56:16,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:56:16,744 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:56:16,744 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:56:16,755 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:56:16,756 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:16" (1/1) ... [2024-11-13 16:56:16,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:56:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-13 16:56:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-13 16:56:16,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 16:56:16,827 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:16,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:16,962 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 16:56:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2024-11-13 16:56:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-13 16:56:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 16:56:17,012 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:17,150 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 16:56:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2024-11-13 16:56:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-11-13 16:56:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 16:56:17,185 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:17,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:17,446 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 16:56:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2024-11-13 16:56:17,803 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-13 16:56:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 16:56:17,804 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:17,921 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 16:56:18,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-13 16:56:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-13 16:56:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:56:18,135 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:18,236 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 16:56:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-13 16:56:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-13 16:56:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:56:18,252 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:18,345 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 16:56:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-11-13 16:56:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-13 16:56:18,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:56:18,403 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:18,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:18,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:18,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:18,561 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-13 16:56:18,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:56:18 ImpRootNode [2024-11-13 16:56:18,581 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:56:18,582 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:56:18,582 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:56:18,582 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:56:18,583 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:16" (3/4) ... [2024-11-13 16:56:18,583 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:56:18,620 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:56:18,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:56:18,621 INFO L158 Benchmark]: Toolchain (without parser) took 3074.34ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-13 16:56:18,621 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:18,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.67ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 75.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:18,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.06ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 73.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:18,622 INFO L158 Benchmark]: Boogie Preprocessor took 29.98ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 72.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:18,623 INFO L158 Benchmark]: RCFGBuilder took 520.08ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 57.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:18,623 INFO L158 Benchmark]: CodeCheck took 1836.76ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 88.5MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:18,623 INFO L158 Benchmark]: Witness Printer took 38.75ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 86.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:18,625 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, 28 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, 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: [L522] int in_len = __VERIFIER_nondet_int(); [L523] COND FALSE !(in_len < 1) [L524] char* in = __builtin_alloca (in_len); VAL [in={3:0}, in_len=2] [L525] in[in_len-1]=0 [L526] int out_len = __VERIFIER_nondet_int(); [L527] COND FALSE !(out_len < 1) [L528] int out_end = __VERIFIER_nondet_int(); [L529] COND FALSE !(out_len < out_end+in_len) [L530] char* out = __builtin_alloca (out_len); VAL [in={3:0}, out={2:0}, out_end=-1] [L531] out[out_end]=0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.67ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 75.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.06ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 73.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.98ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 72.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.08ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 57.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1836.76ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 88.5MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.75ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 86.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:56:18,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e411e3aa-f2e8-4184-b189-0425e015fb6e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)