./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9 --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 0.2.4-dev-0e0057c [2023-12-03 04:02:31,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:02:31,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 04:02:31,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:02:31,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:02:31,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:02:31,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:02:31,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:02:31,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:02:31,281 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:02:31,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:02:31,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:02:31,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:02:31,283 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 04:02:31,284 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 04:02:31,284 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 04:02:31,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:02:31,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:02:31,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:02:31,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:02:31,287 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:02:31,291 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:02:31,292 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:02:31,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:02:31,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:02:31,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:02:31,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:02:31,294 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:02:31,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:02:31,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2023-12-03 04:02:31,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:02:31,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:02:31,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:02:31,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:02:31,545 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:02:31,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2023-12-03 04:02:34,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:02:34,476 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:02:34,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2023-12-03 04:02:34,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/data/634b0de90/0df03a2116bf467ca0b362bbfe9205ed/FLAGe31c4cad5 [2023-12-03 04:02:34,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/data/634b0de90/0df03a2116bf467ca0b362bbfe9205ed [2023-12-03 04:02:34,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:02:34,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:02:34,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:02:34,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:02:34,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:02:34,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6826cfc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34, skipping insertion in model container [2023-12-03 04:02:34,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:02:34,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:02:34,812 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:02:34,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:02:34,877 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:02:34,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34 WrapperNode [2023-12-03 04:02:34,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:02:34,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:02:34,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:02:34,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:02:34,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,921 INFO L138 Inliner]: procedures = 116, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2023-12-03 04:02:34,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:02:34,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:02:34,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:02:34,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:02:34,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:02:34,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:02:34,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:02:34,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:02:34,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:02:34" (1/1) ... [2023-12-03 04:02:34,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:02:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:02:34,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:02:34,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:02:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:02:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 04:02:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:02:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:02:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:02:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:02:35,114 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:02:35,116 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:02:35,358 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:02:35,419 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:02:35,419 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 04:02:35,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:02:35 BoogieIcfgContainer [2023-12-03 04:02:35,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:02:35,422 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:02:35,423 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:02:35,433 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:02:35,434 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:02:35" (1/1) ... [2023-12-03 04:02:35,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:02:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:02:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2023-12-03 04:02:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-12-03 04:02:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:02:35,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:02:35,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:02:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:02:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:02:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:02:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2023-12-03 04:02:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2023-12-03 04:02:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:02:35,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:02:35,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:02:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:02:36,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:02:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:02:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:02:36,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:02:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:02:36,106 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 04:02:36,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc16 [2023-12-03 04:02:36,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-12-03 04:02:36,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc14 [2023-12-03 04:02:36,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc17 [2023-12-03 04:02:36,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:02:36 ImpRootNode [2023-12-03 04:02:36,132 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:02:36,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:02:36,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:02:36,133 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:02:36,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:02:35" (3/4) ... [2023-12-03 04:02:36,134 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 04:02:36,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-12-03 04:02:36,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc17 [2023-12-03 04:02:36,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc14 [2023-12-03 04:02:36,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc16 [2023-12-03 04:02:36,173 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 04:02:36,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:02:36,173 INFO L158 Benchmark]: Toolchain (without parser) took 1664.37ms. Allocated memory is still 182.5MB. Free memory was 151.0MB in the beginning and 129.7MB in the end (delta: 21.3MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,174 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 130.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:02:36,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.40ms. Allocated memory is still 182.5MB. Free memory was 150.7MB in the beginning and 134.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.75ms. Allocated memory is still 182.5MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,175 INFO L158 Benchmark]: Boogie Preprocessor took 30.75ms. Allocated memory is still 182.5MB. Free memory was 131.9MB in the beginning and 130.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,176 INFO L158 Benchmark]: RCFGBuilder took 468.57ms. Allocated memory is still 182.5MB. Free memory was 130.2MB in the beginning and 105.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,176 INFO L158 Benchmark]: CodeCheck took 709.59ms. Allocated memory is still 182.5MB. Free memory was 105.0MB in the beginning and 131.7MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:02:36,177 INFO L158 Benchmark]: Witness Printer took 40.27ms. Allocated memory is still 182.5MB. Free memory was 131.7MB in the beginning and 129.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:02:36,180 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: 0.7s, 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, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 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, 0.3s 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 - 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 TRUE M < 1 [L533] 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={5:0}, cost={4:0}, i=0, size={3:0}, val={2:0}] [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 0.52ms. Allocated memory is still 130.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.40ms. Allocated memory is still 182.5MB. Free memory was 150.7MB in the beginning and 134.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.75ms. Allocated memory is still 182.5MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.75ms. Allocated memory is still 182.5MB. Free memory was 131.9MB in the beginning and 130.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.57ms. Allocated memory is still 182.5MB. Free memory was 130.2MB in the beginning and 105.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 709.59ms. Allocated memory is still 182.5MB. Free memory was 105.0MB in the beginning and 131.7MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.27ms. Allocated memory is still 182.5MB. Free memory was 131.7MB in the beginning and 129.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc16 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc14 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc17 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc17 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc14 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc16 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 04:02:36,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03df6d04-e6cc-4e75-9b7f-68f0dacb0f08/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)