./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b --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 32bit --witnessprinter.graph.data.programhash 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:28:01,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:28:01,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-05 22:28:01,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:28:01,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:28:01,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:28:01,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:28:01,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:28:01,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:28:01,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:28:01,432 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:28:01,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:28:01,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:28:01,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:28:01,432 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_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 [2024-12-05 22:28:01,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:28:01,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:28:01,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:28:01,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:28:01,674 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:28:01,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2024-12-05 22:28:04,266 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/data/21ee9f881/331eb1148f5a464a9dc557df5facc9e3/FLAG07039c533 [2024-12-05 22:28:04,530 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:28:04,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2024-12-05 22:28:04,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/data/21ee9f881/331eb1148f5a464a9dc557df5facc9e3/FLAG07039c533 [2024-12-05 22:28:04,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/data/21ee9f881/331eb1148f5a464a9dc557df5facc9e3 [2024-12-05 22:28:04,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:28:04,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:28:04,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:28:04,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:28:04,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:28:04,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:28:04" (1/1) ... [2024-12-05 22:28:04,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f090873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:04, skipping insertion in model container [2024-12-05 22:28:04,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:28:04" (1/1) ... [2024-12-05 22:28:04,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:28:05,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:28:05,068 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:28:05,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:28:05,123 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:28:05,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05 WrapperNode [2024-12-05 22:28:05,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:28:05,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:28:05,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:28:05,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:28:05,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,156 INFO L138 Inliner]: procedures = 118, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-12-05 22:28:05,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:28:05,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:28:05,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:28:05,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:28:05,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:28:05,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:28:05,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:28:05,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:28:05,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:28:05,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:28:05,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:28:05,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:28:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 22:28:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 22:28:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 22:28:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 22:28:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:28:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:28:05,303 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:28:05,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:28:05,457 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-12-05 22:28:05,458 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:28:05,509 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:28:05,509 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 22:28:05,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:28:05 BoogieIcfgContainer [2024-12-05 22:28:05,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:28:05,510 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:28:05,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:28:05,516 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:28:05,517 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:28:05" (1/1) ... [2024-12-05 22:28:05,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:28:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 31 states and 34 transitions. [2024-12-05 22:28:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2024-12-05 22:28:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 22:28:05,569 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:05,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 30 states and 33 transitions. [2024-12-05 22:28:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-12-05 22:28:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 22:28:05,759 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:05,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2024-12-05 22:28:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-12-05 22:28:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 22:28:06,268 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:06,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-12-05 22:28:06,315 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-12-05 22:28:06,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 22:28:06,316 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-12-05 22:28:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-12-05 22:28:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:28:06,926 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2024-12-05 22:28:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2024-12-05 22:28:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:28:07,023 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:07,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2024-12-05 22:28:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-12-05 22:28:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 22:28:07,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:07,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-12-05 22:28:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-12-05 22:28:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 22:28:08,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2024-12-05 22:28:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2024-12-05 22:28:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:28:10,287 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:10,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2024-12-05 22:28:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-12-05 22:28:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:28:11,858 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:11,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:11,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-12-05 22:28:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-12-05 22:28:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:28:11,887 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:11,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2024-12-05 22:28:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-12-05 22:28:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:28:11,918 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:11,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-12-05 22:28:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-12-05 22:28:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:28:13,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:13,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2024-12-05 22:28:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-12-05 22:28:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:28:13,268 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:13,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-12-05 22:28:13,492 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-12-05 22:28:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:28:13,492 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:13,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:13,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2024-12-05 22:28:13,763 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-12-05 22:28:13,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:28:13,763 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:13,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:28:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:28:15,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:28:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2024-12-05 22:28:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-12-05 22:28:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:28:15,063 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:28:15,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:28:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:28:15,077 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:28:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:28:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:28:15,118 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:28:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:28:15,146 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2024-12-05 22:28:15,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:28:15 ImpRootNode [2024-12-05 22:28:15,169 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:28:15,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:28:15,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:28:15,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:28:15,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:28:05" (3/4) ... [2024-12-05 22:28:15,171 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 22:28:15,206 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-12-05 22:28:15,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 22:28:15,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 22:28:15,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:28:15,248 INFO L158 Benchmark]: Toolchain (without parser) took 10414.65ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 49.1MB in the end (delta: 68.3MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2024-12-05 22:28:15,248 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:28:15,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.60ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 100.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:28:15,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.43ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 99.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:28:15,249 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.3MB in the end (delta: 917.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:28:15,249 INFO L158 Benchmark]: RCFGBuilder took 331.94ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 80.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:28:15,249 INFO L158 Benchmark]: CodeCheck took 9659.25ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 53.8MB in the end (delta: 26.4MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-12-05 22:28:15,249 INFO L158 Benchmark]: Witness Printer took 77.17ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 49.1MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:28:15,251 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, 31 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 485 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1727 IncrementalHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 485 mSolverCounterUnsat, 40 mSDtfsCounter, 1727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 789 GetRequests, 638 SyntacticMatches, 17 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7238 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 4/13 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L536] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={-1:0}] [L521] COND FALSE !(i < length - 1) [L526] nondetString[length-1] = '\0' [L527] return nondetString; [L536] RET, EXPR build_nondet_String() [L536] char* s = build_nondet_String(); [L537] CALL cstrchr(s,__VERIFIER_nondet_int()) [L531] EXPR \read(*s) [L531] *s != '\0' && *s != (char)c VAL [c=-1, s={-1:0}] [L531] COND FALSE !(*s != '\0' && *s != (char)c) [L533] EXPR \read(*s) [L533] return ( (*s == c) ? (char *) s : 0 ); [L537] RET cstrchr(s,__VERIFIER_nondet_int()) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.60ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 100.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.43ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 99.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.3MB in the end (delta: 917.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.94ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 80.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 9659.25ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 53.8MB in the end (delta: 26.4MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 77.17ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 49.1MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 22:28:15,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e642dd-73c7-44e8-8d99-ebcf8a08eddb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)