./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/count_down_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_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/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_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/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_72c88d15-b646-4335-bb6c-19362247bbb4/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 f9f8e12a96bbd82b23d1fc92b67fc377b3c783a366d4cad2924c946b146eff3f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:05:01,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:05:01,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-05 23:05:01,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:05:01,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:05:01,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:05:01,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:05:01,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:05:01,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:05:01,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:05:01,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:05:01,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:05:01,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:05:01,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:05:01,661 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:05:01,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:05:01,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:05:01,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:05:01,662 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_72c88d15-b646-4335-bb6c-19362247bbb4/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 -> f9f8e12a96bbd82b23d1fc92b67fc377b3c783a366d4cad2924c946b146eff3f [2024-12-05 23:05:01,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:05:01,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:05:01,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:05:01,908 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:05:01,908 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:05:01,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2024-12-05 23:05:04,564 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/data/1a58f7da6/bdb666ce8dad44dd8bde18a6cdb607c3/FLAG74ce42415 [2024-12-05 23:05:04,783 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:05:04,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2024-12-05 23:05:04,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/data/1a58f7da6/bdb666ce8dad44dd8bde18a6cdb607c3/FLAG74ce42415 [2024-12-05 23:05:04,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/data/1a58f7da6/bdb666ce8dad44dd8bde18a6cdb607c3 [2024-12-05 23:05:04,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:05:04,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:05:04,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:05:04,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:05:04,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:05:04,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:05:04" (1/1) ... [2024-12-05 23:05:04,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fac70fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:04, skipping insertion in model container [2024-12-05 23:05:04,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:05:04" (1/1) ... [2024-12-05 23:05:04,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:05:05,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:05:05,069 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:05:05,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:05:05,130 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:05:05,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05 WrapperNode [2024-12-05 23:05:05,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:05:05,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:05:05,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:05:05,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:05:05,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,164 INFO L138 Inliner]: procedures = 115, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-12-05 23:05:05,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:05:05,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:05:05,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:05:05,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:05:05,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,182 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:05:05,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:05:05,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:05:05,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:05:05,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:05:05,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:05:05,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:05:05,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:05:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 23:05:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 23:05:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 23:05:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:05:05,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:05:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:05:05,321 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:05:05,322 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:05:05,464 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-05 23:05:05,465 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:05:05,519 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:05:05,519 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-05 23:05:05,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:05:05 BoogieIcfgContainer [2024-12-05 23:05:05,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:05:05,520 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:05:05,521 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:05:05,528 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:05:05,528 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:05:05" (1/1) ... [2024-12-05 23:05:05,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:05:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-12-05 23:05:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-05 23:05:05,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 23:05:05,577 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:05,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:05:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:05,747 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 23:05:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2024-12-05 23:05:05,784 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-12-05 23:05:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:05:05,785 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:05,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:05:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:05,857 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 23:05:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-12-05 23:05:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-12-05 23:05:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 23:05:05,968 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:05,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:05:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:05:05,990 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:05:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:05:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:05:06,033 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:05:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:05:06,047 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-05 23:05:06,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:05:06 ImpRootNode [2024-12-05 23:05:06,066 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:05:06,067 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:05:06,067 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:05:06,067 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:05:06,068 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:05:05" (3/4) ... [2024-12-05 23:05:06,069 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 23:05:06,103 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-12-05 23:05:06,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:05:06,140 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c88d15-b646-4335-bb6c-19362247bbb4/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:05:06,140 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:05:06,141 INFO L158 Benchmark]: Toolchain (without parser) took 1327.52ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.2MB in the end (delta: 13.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-12-05 23:05:06,141 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:05:06,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.03ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:05:06,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.49ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:05:06,142 INFO L158 Benchmark]: Boogie Preprocessor took 25.28ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 73.4MB in the end (delta: 983.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:05:06,142 INFO L158 Benchmark]: RCFGBuilder took 328.87ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 58.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:05:06,143 INFO L158 Benchmark]: CodeCheck took 546.02ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 83.5MB in the end (delta: -25.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:05:06,143 INFO L158 Benchmark]: Witness Printer took 72.79ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 79.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:05:06,145 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, 21 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int val; [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L516] length = 1 [L517] int *arr = __builtin_alloca (length); VAL [arr={2:0}, length=1] [L518] COND FALSE !(!arr) [L519] i=0 VAL [arr={2:0}, i=0, length=1] [L519] COND TRUE i