./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/add_last_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_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/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_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/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_a4370000-e205-4476-8e36-62ddfd662241/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 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:11:44,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:11:44,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 22:11:44,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:11:44,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:11:44,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:11:44,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:11:44,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:11:44,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:11:44,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:11:44,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:11:44,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:11:44,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:11:44,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 22:11:44,633 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 22:11:44,633 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 22:11:44,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:11:44,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:11:44,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:11:44,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:11:44,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:11:44,636 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:11:44,636 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:11:44,637 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:11:44,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:11:44,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:11:44,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:11:44,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:11:44,638 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:11:44,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:11:44,638 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_a4370000-e205-4476-8e36-62ddfd662241/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 [2024-11-08 22:11:44,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:11:44,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:11:44,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:11:44,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:11:44,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:11:44,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i Unable to find full path for "g++" [2024-11-08 22:11:47,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:11:47,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:11:47,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2024-11-08 22:11:47,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/data/a4a6be535/9bb8aea48b7940ff91274e722afd0918/FLAG001d0eafb [2024-11-08 22:11:47,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/data/a4a6be535/9bb8aea48b7940ff91274e722afd0918 [2024-11-08 22:11:47,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:11:47,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:11:47,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:11:47,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:11:47,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:11:47,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:11:47" (1/1) ... [2024-11-08 22:11:47,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ed229b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:47, skipping insertion in model container [2024-11-08 22:11:47,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:11:47" (1/1) ... [2024-11-08 22:11:47,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:11:48,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:11:48,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:11:48,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:11:48,171 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:11:48,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48 WrapperNode [2024-11-08 22:11:48,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:11:48,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:11:48,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:11:48,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:11:48,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,220 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-11-08 22:11:48,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:11:48,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:11:48,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:11:48,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:11:48,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:11:48,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:11:48,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:11:48,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:11:48,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:11:48,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:11:48,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:11:48,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:11:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:11:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:11:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:11:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:11:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:11:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:11:48,471 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:11:48,473 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:11:48,693 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-08 22:11:48,693 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:11:48,763 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:11:48,763 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:11:48,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:11:48 BoogieIcfgContainer [2024-11-08 22:11:48,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:11:48,765 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:11:48,765 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:11:48,777 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:11:48,777 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:11:48" (1/1) ... [2024-11-08 22:11:48,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:11:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:11:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2024-11-08 22:11:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-08 22:11:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 22:11:48,841 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:11:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:11:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:11:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:11:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:11:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 28 states and 31 transitions. [2024-11-08 22:11:49,082 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-11-08 22:11:49,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:11:49,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:11:49,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:11:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:11:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:11:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:11:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 27 states and 30 transitions. [2024-11-08 22:11:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-08 22:11:49,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:11:49,426 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:11:49,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:11:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:11:49,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:11:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:11:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:11:49,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:11:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:11:49,589 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-08 22:11:49,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:11:49 ImpRootNode [2024-11-08 22:11:49,613 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:11:49,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:11:49,614 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:11:49,614 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:11:49,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:11:48" (3/4) ... [2024-11-08 22:11:49,616 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 22:11:49,653 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:11:49,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:11:49,654 INFO L158 Benchmark]: Toolchain (without parser) took 2032.77ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 105.1MB in the beginning and 126.6MB in the end (delta: -21.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-08 22:11:49,655 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:11:49,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.37ms. Allocated memory is still 138.4MB. Free memory was 105.1MB in the beginning and 86.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:11:49,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.07ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:11:49,657 INFO L158 Benchmark]: Boogie Preprocessor took 32.43ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 83.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:11:49,657 INFO L158 Benchmark]: RCFGBuilder took 508.07ms. Allocated memory is still 138.4MB. Free memory was 83.2MB in the beginning and 67.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:11:49,658 INFO L158 Benchmark]: CodeCheck took 849.08ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.4MB in the beginning and 128.8MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:11:49,659 INFO L158 Benchmark]: Witness Printer took 39.51ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:11:49,662 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, 28 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 12 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1) [L516] int *arr = __builtin_alloca (length); VAL [arr={2:0}, length=1] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [a={2:0}, arr={2:0}, k=0, length=1] [L520] COND FALSE !(k < length) VAL [a={2:0}, arr={2:0}, k=0, length=1] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.37ms. Allocated memory is still 138.4MB. Free memory was 105.1MB in the beginning and 86.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.07ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.43ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 83.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.07ms. Allocated memory is still 138.4MB. Free memory was 83.2MB in the beginning and 67.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 849.08ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.4MB in the beginning and 128.8MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.51ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 126.6MB 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! [2024-11-08 22:11:49,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4370000-e205-4476-8e36-62ddfd662241/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)