./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_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_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/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_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/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_9fc92014-ee7c-4786-a84b-0ed21268590f/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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:55:26,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:55:26,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 04:55:26,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:55:26,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:55:26,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:55:26,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:55:26,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:55:26,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:55:26,552 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:55:26,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:55:26,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:55:26,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:55:26,554 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 04:55:26,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 04:55:26,555 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 04:55:26,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:55:26,556 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:55:26,557 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:55:26,557 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:55:26,558 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:55:26,558 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:55:26,559 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:55:26,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:55:26,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:55:26,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:55:26,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:55:26,561 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:55:26,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:55:26,562 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_9fc92014-ee7c-4786-a84b-0ed21268590f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2023-12-03 04:55:26,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:55:26,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:55:26,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:55:26,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:55:26,788 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:55:26,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2023-12-03 04:55:29,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:55:29,812 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:55:29,813 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2023-12-03 04:55:29,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/data/834b6b443/b053be41670343bcbc3f3bd99feb1946/FLAG49dae23eb [2023-12-03 04:55:29,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/data/834b6b443/b053be41670343bcbc3f3bd99feb1946 [2023-12-03 04:55:29,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:55:29,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:55:29,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:55:29,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:55:29,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:55:29,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:55:29" (1/1) ... [2023-12-03 04:55:29,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a849849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:29, skipping insertion in model container [2023-12-03 04:55:29,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:55:29" (1/1) ... [2023-12-03 04:55:29,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:55:30,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:55:30,156 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:55:30,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:55:30,219 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:55:30,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30 WrapperNode [2023-12-03 04:55:30,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:55:30,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:55:30,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:55:30,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:55:30,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,265 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-12-03 04:55:30,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:55:30,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:55:30,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:55:30,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:55:30,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:55:30,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:55:30,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:55:30,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:55:30,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:55:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:55:30,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:55:30,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:55:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:55:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 04:55:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 04:55:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:55:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:55:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:55:30,460 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:55:30,462 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:55:30,695 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:55:30,751 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:55:30,751 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 04:55:30,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:55:30 BoogieIcfgContainer [2023-12-03 04:55:30,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:55:30,754 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:55:30,754 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:55:30,762 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:55:30,762 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:55:30" (1/1) ... [2023-12-03 04:55:30,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:55:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:55:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2023-12-03 04:55:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2023-12-03 04:55:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:55:30,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:55:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:55:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:55:31,090 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 04:55:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:55:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2023-12-03 04:55:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2023-12-03 04:55:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:55:31,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:55:31,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:55:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:55:31,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:55:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:55:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:55:31,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:55:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:55:31,244 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 04:55:31,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:55:31 ImpRootNode [2023-12-03 04:55:31,266 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:55:31,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:55:31,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:55:31,267 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:55:31,267 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:55:30" (3/4) ... [2023-12-03 04:55:31,268 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 04:55:31,297 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 04:55:31,297 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:55:31,298 INFO L158 Benchmark]: Toolchain (without parser) took 1455.15ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 115.9MB in the beginning and 154.0MB in the end (delta: -38.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-12-03 04:55:31,298 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:55:31,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.02ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 99.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:55:31,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.24ms. Allocated memory is still 148.9MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:55:31,300 INFO L158 Benchmark]: Boogie Preprocessor took 24.07ms. Allocated memory is still 148.9MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:55:31,300 INFO L158 Benchmark]: RCFGBuilder took 462.20ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 74.9MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-03 04:55:31,301 INFO L158 Benchmark]: CodeCheck took 512.20ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 74.5MB in the beginning and 156.0MB in the end (delta: -81.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:55:31,301 INFO L158 Benchmark]: Witness Printer took 30.56ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 154.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:55:31,304 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, 58 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s 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: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) [L535] CALL lis(a, N) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [N=1073741824, \old(N)=1073741824, a={8:5}, a={8:5}, best={-1:0}, i=0, max=0, prev={-2:0}] [L517] COND TRUE i < N VAL [N=1073741824, \old(N)=1073741824, a={8:5}, a={8:5}, best={-1:0}, i=0, max=0, prev={-2:0}] [L518] best[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.02ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 99.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.24ms. Allocated memory is still 148.9MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.07ms. Allocated memory is still 148.9MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.20ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 74.9MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 512.20ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 74.5MB in the beginning and 156.0MB in the end (delta: -81.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.56ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 154.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 04:55:31,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc92014-ee7c-4786-a84b-0ed21268590f/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)