./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:10:27,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:10:28,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-25 04:10:28,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:10:28,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:10:28,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:10:28,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:10:28,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:10:28,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:10:28,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:10:28,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:10:28,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:10:28,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:10:28,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:10:28,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:10:28,070 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:10:28,070 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:10:28,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:10:28,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:10:28,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:10:28,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:10:28,071 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:10:28,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:10:28,071 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_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3 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-memcleanup) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2024-11-25 04:10:28,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:10:28,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:10:28,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:10:28,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:10:28,426 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:10:28,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-25 04:10:31,862 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/791c98a75/ca0517b51da74474b40de55eb696727c/FLAG62c528b59 [2024-11-25 04:10:32,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:10:32,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-25 04:10:32,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/791c98a75/ca0517b51da74474b40de55eb696727c/FLAG62c528b59 [2024-11-25 04:10:32,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/791c98a75/ca0517b51da74474b40de55eb696727c [2024-11-25 04:10:32,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:10:32,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:10:32,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:10:32,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:10:32,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:10:32,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:10:32" (1/1) ... [2024-11-25 04:10:32,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652c754b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:32, skipping insertion in model container [2024-11-25 04:10:32,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:10:32" (1/1) ... [2024-11-25 04:10:32,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:10:32,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:10:32,999 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:10:33,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:10:33,153 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:10:33,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33 WrapperNode [2024-11-25 04:10:33,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:10:33,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:10:33,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:10:33,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:10:33,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,233 INFO L138 Inliner]: procedures = 168, calls = 43, calls flagged for inlining = 8, calls inlined = 14, statements flattened = 168 [2024-11-25 04:10:33,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:10:33,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:10:33,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:10:33,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:10:33,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:10:33,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:10:33,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:10:33,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:10:33,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:33" (1/1) ... [2024-11-25 04:10:33,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:10:33,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:10:33,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:10:33,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:10:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:10:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 04:10:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:10:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 04:10:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:10:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-25 04:10:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:10:33,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:10:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:10:33,545 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:10:33,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:10:33,930 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-25 04:10:33,930 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:10:34,175 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:10:34,175 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 04:10:34,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:34 BoogieIcfgContainer [2024-11-25 04:10:34,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:10:34,176 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:10:34,177 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:10:34,190 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:10:34,190 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:34" (1/1) ... [2024-11-25 04:10:34,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:10:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-25 04:10:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-25 04:10:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:10:34,289 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:10:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-11-25 04:10:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-11-25 04:10:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:10:34,738 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:10:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:34,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2024-11-25 04:10:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2024-11-25 04:10:34,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 04:10:34,865 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:10:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2024-11-25 04:10:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2024-11-25 04:10:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 04:10:35,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:35,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:10:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:35,141 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:10:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:35,464 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:10:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:35,564 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 04:10:35,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:10:35 ImpRootNode [2024-11-25 04:10:35,622 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:10:35,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:10:35,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:10:35,623 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:10:35,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:34" (3/4) ... [2024-11-25 04:10:35,627 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:10:35,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:10:35,630 INFO L158 Benchmark]: Toolchain (without parser) took 3179.19ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.0MB in the end (delta: 10.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-11-25 04:10:35,632 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:35,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.98ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 97.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:10:35,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.24ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 95.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:10:35,633 INFO L158 Benchmark]: Boogie Preprocessor took 36.35ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:35,634 INFO L158 Benchmark]: RCFGBuilder took 903.03ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 110.7MB in the end (delta: -16.6MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-11-25 04:10:35,634 INFO L158 Benchmark]: CodeCheck took 1445.72ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 107.0MB in the end (delta: 3.7MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2024-11-25 04:10:35,634 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 15.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:35,636 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 27 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 213 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 722]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of strcmp at line 693. Possible FailurePath: [L685] int state = STATE_1; [L686] char *global = 0; [L687-L690] const struct command commands[] = { {"c1",c1,STATE_1}, {"c2",c2,STATE_2} }; [L723] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={0:0}, i=0, state=0] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={0:0}, i=0, state=0] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={0:0}, i=0, state=0] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND FALSE !(\read(*global)) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L723] RET parse_input("c1") [L724] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={-26816:0}, i=0, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={-26816:0}, i=0, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={-26816:0}, i=0, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L724] RET parse_input("c1") [L725] CALL parse_input("c2") [L692] int i = 0; VAL [commands={6:0}, global={-26815:0}, i=0, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={-26815:0}, i=0, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={-26815:0}, i=0, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L725] RET parse_input("c2") [L726] return 0; VAL [\result=0, commands={6:0}, global={-26816:0}, state=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.98ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 97.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.24ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 95.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.35ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 903.03ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 110.7MB in the end (delta: -16.6MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * CodeCheck took 1445.72ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 107.0MB in the end (delta: 3.7MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 15.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:10:35,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:10:38,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:10:38,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2024-11-25 04:10:38,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:10:38,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:10:38,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:10:38,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:10:38,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:10:38,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:10:38,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:10:38,888 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:10:38,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:10:38,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:10:38,889 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 04:10:38,892 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 04:10:38,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:10:38,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:10:38,892 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:10:38,892 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:10:38,893 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:38,893 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:10:38,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:10:38,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:10:38,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:10:38,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:10:38,894 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:10:38,894 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:38,894 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:10:38,894 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_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3 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-memcleanup) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2024-11-25 04:10:39,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:10:39,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:10:39,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:10:39,225 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:10:39,225 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:10:39,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-25 04:10:42,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/cc6c3b1ad/94f22ab4ad4b4ae0a33655754996614a/FLAGd48178b62 [2024-11-25 04:10:42,496 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:10:42,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-25 04:10:42,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/cc6c3b1ad/94f22ab4ad4b4ae0a33655754996614a/FLAGd48178b62 [2024-11-25 04:10:42,538 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/data/cc6c3b1ad/94f22ab4ad4b4ae0a33655754996614a [2024-11-25 04:10:42,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:10:42,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:10:42,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:10:42,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:10:42,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:10:42,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:10:42" (1/1) ... [2024-11-25 04:10:42,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a0d4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:42, skipping insertion in model container [2024-11-25 04:10:42,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:10:42" (1/1) ... [2024-11-25 04:10:42,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:10:42,942 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-25 04:10:42,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:10:42,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:10:43,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:10:43,093 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:10:43,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43 WrapperNode [2024-11-25 04:10:43,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:10:43,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:10:43,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:10:43,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:10:43,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,164 INFO L138 Inliner]: procedures = 169, calls = 43, calls flagged for inlining = 8, calls inlined = 14, statements flattened = 169 [2024-11-25 04:10:43,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:10:43,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:10:43,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:10:43,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:10:43,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:10:43,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:10:43,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:10:43,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:10:43,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:10:43" (1/1) ... [2024-11-25 04:10:43,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:10:43,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:10:43,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:10:43,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:10:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-25 04:10:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 04:10:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:10:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 04:10:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:10:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-25 04:10:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:10:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:10:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:10:43,454 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:10:43,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:10:43,942 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-25 04:10:43,943 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:10:44,200 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:10:44,200 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 04:10:44,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:44 BoogieIcfgContainer [2024-11-25 04:10:44,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:10:44,202 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:10:44,202 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:10:44,213 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:10:44,214 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:44" (1/1) ... [2024-11-25 04:10:44,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:10:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-25 04:10:44,270 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-25 04:10:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:10:44,273 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:44,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:44,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:44,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:10:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:44,409 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:10:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:44,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:10:44,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:10:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:44,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:10:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2024-11-25 04:10:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2024-11-25 04:10:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:10:44,644 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:44,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:44,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:44,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:44,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 04:10:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:44,808 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:10:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:44,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:10:44,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:10:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:44,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-25 04:10:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2024-11-25 04:10:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2024-11-25 04:10:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:10:45,036 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:45,036 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:45,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:45,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:45,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 04:10:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,181 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:10:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:10:45,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:10:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:45,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-25 04:10:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 46 transitions. [2024-11-25 04:10:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2024-11-25 04:10:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 04:10:45,328 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:45,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:45,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:45,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:45,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 04:10:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,516 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:10:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:10:45,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:10:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:45,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 04:10:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2024-11-25 04:10:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-25 04:10:45,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 04:10:45,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:45,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:45,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:45,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:45,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-25 04:10:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,861 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:10:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:10:45,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:10:45,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:10:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:10:45,931 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 04:10:45,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-25 04:10:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:10:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 30 states and 50 transitions. [2024-11-25 04:10:45,959 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2024-11-25 04:10:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 04:10:45,963 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:10:45,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:10:45,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:10:45,966 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:10:45,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-25 04:10:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:46,591 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:10:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:47,363 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:10:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:10:47,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-25 04:10:47,495 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-25 04:10:47,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:10:47 ImpRootNode [2024-11-25 04:10:47,542 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:10:47,543 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:10:47,543 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:10:47,543 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:10:47,544 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:10:44" (3/4) ... [2024-11-25 04:10:47,547 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:10:47,548 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:10:47,549 INFO L158 Benchmark]: Toolchain (without parser) took 5007.14ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 91.9MB in the beginning and 168.1MB in the end (delta: -76.1MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2024-11-25 04:10:47,551 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:47,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.42ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.0MB in the end (delta: 20.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:10:47,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.90ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:10:47,553 INFO L158 Benchmark]: Boogie Preprocessor took 56.57ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:47,553 INFO L158 Benchmark]: RCFGBuilder took 978.62ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.2MB in the end (delta: 2.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-25 04:10:47,554 INFO L158 Benchmark]: CodeCheck took 3340.70ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 64.2MB in the beginning and 168.1MB in the end (delta: -103.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2024-11-25 04:10:47,554 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 260.0MB. Free memory was 168.1MB in the beginning and 168.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:10:47,558 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 54 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 722]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of strcmp at line 693. Possible FailurePath: [L685] int state = STATE_1; [L686] char *global = 0; [L687-L690] const struct command commands[] = { {"c1",c1,STATE_1}, {"c2",c2,STATE_2} }; [L723] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={0:0}, i=0, state=0] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={0:0}, i=0, state=0] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={0:0}, i=0, state=0] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND FALSE !(\read(*global)) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L723] RET parse_input("c1") [L724] CALL parse_input("c1") [L692] int i = 0; VAL [commands={6:0}, global={12:0}, i=0, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={12:0}, i=0, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={12:0}, i=0, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L724] RET parse_input("c1") [L725] CALL parse_input("c2") [L692] int i = 0; VAL [commands={6:0}, global={8:0}, i=0, state=1] [L692] COND TRUE i < 2 [L693] EXPR commands[i].name VAL [commands={6:0}, global={8:0}, i=0, state=1] [L693] COND TRUE strcmp(commands[i].name,input) == 0 [L694] EXPR commands[i].state_needed VAL [commands={6:0}, global={8:0}, i=0, state=1] [L694] COND TRUE state >= commands[i].state_needed [L695] EXPR commands[i].function [L695] CALL commands[i].function() [L702] char *x = (char *)malloc(sizeof(char)); [L703] COND FALSE !(!x) [L706] COND TRUE \read(*global) [L709] global = x [L710] state = STATE_2 [L695] RET commands[i].function() [L725] RET parse_input("c2") [L726] return 0; VAL [\result=0, commands={6:0}, global={7:0}, state=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.42ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.0MB in the end (delta: 20.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.90ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.57ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 67.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 978.62ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.2MB in the end (delta: 2.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * CodeCheck took 3340.70ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 64.2MB in the beginning and 168.1MB in the end (delta: -103.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 260.0MB. Free memory was 168.1MB in the beginning and 168.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:10:47,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_565d3590-664d-42be-b18a-74d7cfe0e3b4/bin/ukojak-verify-ENZ3QT5qd3/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