./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_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_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/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_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/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-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 e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:50:40,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:50:40,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-25 02:50:40,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:50:40,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:50:40,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:50:40,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:50:40,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:50:40,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:50:40,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:50:40,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:50:40,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:50:40,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:50:40,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:50:40,938 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:50:40,939 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:50:40,939 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:50:40,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:50:40,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:50:40,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:50:40,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:50:40,941 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:50:40,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:50:40,941 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_aa428d03-e30d-44ab-9a56-daa2b5cc299c/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-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 -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2024-11-25 02:50:41,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:50:41,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:50:41,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:50:41,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:50:41,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:50:41,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2024-11-25 02:50:44,165 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/data/eff881e4a/b2778d8793f44f4ba00e208fbbbc0f66/FLAG2ea58a13a [2024-11-25 02:50:44,513 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:50:44,513 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2024-11-25 02:50:44,533 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/data/eff881e4a/b2778d8793f44f4ba00e208fbbbc0f66/FLAG2ea58a13a [2024-11-25 02:50:44,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/data/eff881e4a/b2778d8793f44f4ba00e208fbbbc0f66 [2024-11-25 02:50:44,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:50:44,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:50:44,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:50:44,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:50:44,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:50:44,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:50:44" (1/1) ... [2024-11-25 02:50:44,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bc6c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:44, skipping insertion in model container [2024-11-25 02:50:44,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:50:44" (1/1) ... [2024-11-25 02:50:44,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:50:45,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:50:45,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:50:45,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:50:45,120 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:50:45,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45 WrapperNode [2024-11-25 02:50:45,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:50:45,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:50:45,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:50:45,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:50:45,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,163 INFO L138 Inliner]: procedures = 116, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-25 02:50:45,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:50:45,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:50:45,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:50:45,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:50:45,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,180 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:50:45,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:50:45,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:50:45,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:50:45,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:50:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:50:45,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:50:45,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:50:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:50:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:50:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:50:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:50:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:50:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:50:45,400 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:50:45,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:50:45,802 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-25 02:50:45,802 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:50:45,893 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:50:45,893 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-25 02:50:45,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:50:45 BoogieIcfgContainer [2024-11-25 02:50:45,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:50:45,895 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:50:45,895 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:50:45,905 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:50:45,906 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:50:45" (1/1) ... [2024-11-25 02:50:45,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:50:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:50:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2024-11-25 02:50:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2024-11-25 02:50:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 02:50:45,965 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:50:45,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:50:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:50:46,488 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 02:50:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:50:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2024-11-25 02:50:46,549 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-11-25 02:50:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 02:50:46,551 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:50:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:50:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:50:46,622 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:50:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:50:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:50:46,714 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:50:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:50:46,735 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 02:50:46,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:50:46 ImpRootNode [2024-11-25 02:50:46,759 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:50:46,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:50:46,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:50:46,760 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:50:46,760 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:50:45" (3/4) ... [2024-11-25 02:50:46,761 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 02:50:46,798 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-11-25 02:50:46,841 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:50:46,841 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:50:46,842 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:50:46,842 INFO L158 Benchmark]: Toolchain (without parser) took 2116.04ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 56.4MB in the end (delta: 36.9MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-11-25 02:50:46,843 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:50:46,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.51ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 76.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:50:46,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.76ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:50:46,844 INFO L158 Benchmark]: Boogie Preprocessor took 24.55ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 73.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:50:46,844 INFO L158 Benchmark]: RCFGBuilder took 704.65ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 46.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:50:46,845 INFO L158 Benchmark]: CodeCheck took 864.10ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 60.5MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:50:46,845 INFO L158 Benchmark]: Witness Printer took 82.30ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 56.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:50:46,848 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, 50 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) [L532] COND FALSE !(M < 1) [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [M=1, N=1073741824, best={3:0}, cost={4:0}, i=0, size={2:0}, val={5:0}] [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.51ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 76.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.76ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.55ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 73.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 704.65ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 46.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 864.10ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 60.5MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.30ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 56.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 02:50:46,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa428d03-e30d-44ab-9a56-daa2b5cc299c/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)