./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 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_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk --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 bb17be6c5036a92a96f9e04e4f3a4e1575c4abfe5b11b351c9bb22d6c30d006f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:32:41,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:32:42,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-09 00:32:42,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:32:42,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:32:42,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:32:42,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:32:42,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:32:42,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:32:42,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:32:42,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:32:42,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:32:42,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:32:42,068 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 00:32:42,068 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 00:32:42,069 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 00:32:42,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:32:42,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:32:42,069 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:32:42,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:32:42,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:32:42,073 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:32:42,073 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:32:42,074 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:32:42,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:32:42,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:32:42,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:32:42,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:32:42,077 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:32:42,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:32:42,078 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_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb17be6c5036a92a96f9e04e4f3a4e1575c4abfe5b11b351c9bb22d6c30d006f [2024-11-09 00:32:42,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:32:42,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:32:42,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:32:42,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:32:42,439 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:32:42,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i Unable to find full path for "g++" [2024-11-09 00:32:44,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:32:44,804 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:32:44,808 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2024-11-09 00:32:44,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/data/9a9551602/a5421577082f4604b1267c00d90fa01c/FLAGf786005f7 [2024-11-09 00:32:44,845 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/data/9a9551602/a5421577082f4604b1267c00d90fa01c [2024-11-09 00:32:44,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:32:44,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:32:44,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:32:44,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:32:44,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:32:44,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:32:44" (1/1) ... [2024-11-09 00:32:44,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ceed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:44, skipping insertion in model container [2024-11-09 00:32:44,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:32:44" (1/1) ... [2024-11-09 00:32:44,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:32:45,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:32:45,307 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:32:45,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:32:45,407 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:32:45,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45 WrapperNode [2024-11-09 00:32:45,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:32:45,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:32:45,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:32:45,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:32:45,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,451 INFO L138 Inliner]: procedures = 116, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2024-11-09 00:32:45,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:32:45,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:32:45,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:32:45,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:32:45,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:32:45,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:32:45,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:32:45,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:32:45,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:32:45" (1/1) ... [2024-11-09 00:32:45,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:32:45,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:32:45,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:32:45,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:32:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:32:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:32:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:32:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:32:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:32:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:32:45,665 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:32:45,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:32:46,000 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-09 00:32:46,000 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:32:46,135 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:32:46,136 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:32:46,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:32:46 BoogieIcfgContainer [2024-11-09 00:32:46,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:32:46,137 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:32:46,137 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:32:46,149 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:32:46,150 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:32:46" (1/1) ... [2024-11-09 00:32:46,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:32:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:32:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 47 states and 54 transitions. [2024-11-09 00:32:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-11-09 00:32:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:32:46,226 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:32:46,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:32:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:32:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:32:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:32:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 46 states and 53 transitions. [2024-11-09 00:32:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-11-09 00:32:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:32:46,588 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:32:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:32:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:32:46,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:32:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:32:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:32:46,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:32:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:32:46,734 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:32:46,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:32:46 ImpRootNode [2024-11-09 00:32:46,759 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:32:46,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:32:46,760 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:32:46,760 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:32:46,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:32:46" (3/4) ... [2024-11-09 00:32:46,761 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:32:46,798 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:32:46,798 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:32:46,799 INFO L158 Benchmark]: Toolchain (without parser) took 1950.35ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 110.8MB in the beginning and 137.8MB in the end (delta: -27.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-09 00:32:46,800 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:32:46,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.54ms. Allocated memory is still 144.7MB. Free memory was 110.8MB in the beginning and 91.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:32:46,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.11ms. Allocated memory is still 144.7MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:32:46,802 INFO L158 Benchmark]: Boogie Preprocessor took 28.72ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 88.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:32:46,802 INFO L158 Benchmark]: RCFGBuilder took 654.20ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 65.8MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 00:32:46,803 INFO L158 Benchmark]: CodeCheck took 621.84ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 65.8MB in the beginning and 139.9MB in the end (delta: -74.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:32:46,803 INFO L158 Benchmark]: Witness Printer took 38.87ms. Allocated memory is still 182.5MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:32:46,807 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, 47 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 28 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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: [L515] int i, j, tmp; [L516] int length = __VERIFIER_nondet_int(); [L517] COND FALSE !(length < 1) [L518] COND TRUE length % 2 == 0 [L518] length++ [L519] int *arr = __builtin_alloca (length); [L520] int i = 0; VAL [arr={2:0}, i=0, length=3] [L520] COND FALSE !(i < length) VAL [arr={2:0}, i=0, length=3] [L520] COND TRUE i < length [L522] arr[i] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.54ms. Allocated memory is still 144.7MB. Free memory was 110.8MB in the beginning and 91.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.11ms. Allocated memory is still 144.7MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.72ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 88.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 654.20ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 65.8MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 621.84ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 65.8MB in the beginning and 139.9MB in the end (delta: -74.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.87ms. Allocated memory is still 182.5MB. Free memory was 139.9MB in the beginning and 137.8MB 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! [2024-11-09 00:32:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0459e5-2983-435e-b47b-5bdaf00d2c06/bin/ukojak-verify-ImItNfHLgk/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)