./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 04:03:15,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:03:15,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 04:03:15,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:03:15,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:03:15,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:03:15,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:03:15,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:03:15,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:03:15,308 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:03:15,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:03:15,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:03:15,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:03:15,311 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:03:15,312 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:03:15,313 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:03:15,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:03:15,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:03:15,315 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:03:15,316 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:03:15,316 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:03:15,326 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:03:15,327 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:03:15,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:03:15,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:15,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:03:15,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:03:15,330 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:03:15,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:03:15,331 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_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2023-11-19 04:03:15,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:03:15,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:03:15,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:03:15,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:03:15,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:03:15,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2023-11-19 04:03:19,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:03:19,997 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:03:19,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2023-11-19 04:03:20,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/data/92963a4c0/496cea19377141829ccea007656a2221/FLAGfe2cae147 [2023-11-19 04:03:20,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/data/92963a4c0/496cea19377141829ccea007656a2221 [2023-11-19 04:03:20,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:03:20,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:03:20,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:20,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:03:20,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:03:20,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c43d9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20, skipping insertion in model container [2023-11-19 04:03:20,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,133 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:03:20,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:20,563 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:03:20,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:20,698 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:03:20,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20 WrapperNode [2023-11-19 04:03:20,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:20,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:20,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:03:20,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:03:20,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,769 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-11-19 04:03:20,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:20,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:03:20,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:03:20,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:03:20,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:03:20,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:03:20,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:03:20,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:03:20,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:20" (1/1) ... [2023-11-19 04:03:20,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:03:20,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:03:20,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:03:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:03:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:03:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:03:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:03:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:03:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:03:21,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:03:21,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:03:21,480 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:03:21,562 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:03:21,562 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:03:21,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:21 BoogieIcfgContainer [2023-11-19 04:03:21,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:03:21,570 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:03:21,570 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:03:21,583 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:03:21,584 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:21" (1/1) ... [2023-11-19 04:03:21,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:03:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2023-11-19 04:03:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2023-11-19 04:03:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:03:21,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:03:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:03:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:03:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2023-11-19 04:03:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2023-11-19 04:03:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:03:22,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:03:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:22,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:22,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:22,318 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 04:03:22,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:03:22 ImpRootNode [2023-11-19 04:03:22,356 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:03:22,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:03:22,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:03:22,358 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:03:22,359 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:21" (3/4) ... [2023-11-19 04:03:22,360 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:03:22,407 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:03:22,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:03:22,408 INFO L158 Benchmark]: Toolchain (without parser) took 2367.09ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 145.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,409 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:22,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.83ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 145.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.13ms. Allocated memory is still 201.3MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,412 INFO L158 Benchmark]: Boogie Preprocessor took 44.78ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,412 INFO L158 Benchmark]: RCFGBuilder took 752.41ms. Allocated memory is still 201.3MB. Free memory was 141.2MB in the beginning and 120.0MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,413 INFO L158 Benchmark]: CodeCheck took 786.74ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 147.9MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:22,414 INFO L158 Benchmark]: Witness Printer took 50.26ms. Allocated memory is still 201.3MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:22,418 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: 0.7s, 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: [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={7:8}, a={7:8}, best={15081:0}, i=0, max=0, prev={15082:0}] [L517] COND TRUE i < N VAL [N=1073741824, \old(N)=1073741824, a={7:8}, a={7:8}, best={15081:0}, i=0, max=0, prev={15082:0}] [L518] best[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.83ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 145.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.13ms. Allocated memory is still 201.3MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.78ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 752.41ms. Allocated memory is still 201.3MB. Free memory was 141.2MB in the beginning and 120.0MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 786.74ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 147.9MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.26ms. Allocated memory is still 201.3MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:03:22,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd925510-11fa-4c2b-993a-95fe8bd38c96/bin/ukojak-verify-G8NBE6pJGL/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)