./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 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_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/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_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/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_277ebf95-8413-46b2-8dbf-769db29823bd/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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:10:02,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:10:02,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 22:10:02,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:10:02,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:10:02,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:10:02,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:10:02,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:10:02,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:10:02,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:10:02,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:10:02,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:10:02,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:10:02,234 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 22:10:02,234 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 22:10:02,235 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 22:10:02,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:10:02,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:10:02,236 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:10:02,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:10:02,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:10:02,240 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:10:02,244 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:10:02,244 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:10:02,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:10:02,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:10:02,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:10:02,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:10:02,246 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:10:02,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:10:02,246 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_277ebf95-8413-46b2-8dbf-769db29823bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2024-11-08 22:10:02,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:10:02,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:10:02,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:10:02,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:10:02,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:10:02,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i Unable to find full path for "g++" [2024-11-08 22:10:04,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:10:04,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:10:04,916 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2024-11-08 22:10:04,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/data/e585dec62/789e25587423419d8d77971c8a557c18/FLAG66af955c5 [2024-11-08 22:10:04,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/data/e585dec62/789e25587423419d8d77971c8a557c18 [2024-11-08 22:10:04,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:10:04,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:10:04,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:10:04,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:10:04,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:10:04,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:10:04" (1/1) ... [2024-11-08 22:10:04,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e4dd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:04, skipping insertion in model container [2024-11-08 22:10:04,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:10:04" (1/1) ... [2024-11-08 22:10:05,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:10:05,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:10:05,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:10:05,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:10:05,538 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:10:05,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05 WrapperNode [2024-11-08 22:10:05,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:10:05,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:10:05,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:10:05,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:10:05,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,599 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-11-08 22:10:05,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:10:05,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:10:05,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:10:05,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:10:05,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:10:05,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:10:05,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:10:05,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:10:05,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:10:05" (1/1) ... [2024-11-08 22:10:05,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:10:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:10:05,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:10:05,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:10:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:10:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:10:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:10:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:10:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:10:05,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:10:05,813 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:10:05,815 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:10:06,219 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-08 22:10:06,219 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:10:06,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:10:06,317 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:10:06,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:10:06 BoogieIcfgContainer [2024-11-08 22:10:06,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:10:06,318 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:10:06,318 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:10:06,328 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:10:06,329 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:10:06" (1/1) ... [2024-11-08 22:10:06,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:06,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:10:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 65 states and 75 transitions. [2024-11-08 22:10:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2024-11-08 22:10:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 22:10:06,400 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:10:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:06,695 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 22:10:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:10:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 68 states and 81 transitions. [2024-11-08 22:10:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2024-11-08 22:10:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 22:10:06,739 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:10:06,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:10:06,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:10:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:10:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:10:06,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:10:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:10:06,860 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:10:06,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:10:06 ImpRootNode [2024-11-08 22:10:06,888 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:10:06,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:10:06,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:10:06,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:10:06,890 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:10:06" (3/4) ... [2024-11-08 22:10:06,892 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 22:10:06,944 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:10:06,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:10:06,946 INFO L158 Benchmark]: Toolchain (without parser) took 1987.30ms. Allocated memory is still 161.5MB. Free memory was 125.1MB in the beginning and 95.6MB in the end (delta: 29.5MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,947 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:10:06,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.98ms. Allocated memory is still 161.5MB. Free memory was 124.7MB in the beginning and 105.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.74ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,948 INFO L158 Benchmark]: Boogie Preprocessor took 29.67ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 102.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,949 INFO L158 Benchmark]: RCFGBuilder took 683.91ms. Allocated memory is still 161.5MB. Free memory was 102.0MB in the beginning and 121.6MB in the end (delta: -19.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,950 INFO L158 Benchmark]: CodeCheck took 570.04ms. Allocated memory is still 161.5MB. Free memory was 121.6MB in the beginning and 97.7MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,954 INFO L158 Benchmark]: Witness Printer took 55.89ms. Allocated memory is still 161.5MB. Free memory was 97.7MB in the beginning and 95.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:10:06,957 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, 65 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 7 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: [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, best={-1:0}, i=0, max=0, prev={24817:0}] [L517] COND FALSE !(i < N) VAL [N=1073741824, best={-1:0}, i=0, max=0, prev={24817:0}] [L517] COND TRUE i < N VAL [N=1073741824, best={-1:0}, i=0, max=0, prev={24817:0}] [L518] best[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.98ms. Allocated memory is still 161.5MB. Free memory was 124.7MB in the beginning and 105.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.74ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.67ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 102.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 683.91ms. Allocated memory is still 161.5MB. Free memory was 102.0MB in the beginning and 121.6MB in the end (delta: -19.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * CodeCheck took 570.04ms. Allocated memory is still 161.5MB. Free memory was 121.6MB in the beginning and 97.7MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 55.89ms. Allocated memory is still 161.5MB. Free memory was 97.7MB in the beginning and 95.6MB 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 22:10:06,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277ebf95-8413-46b2-8dbf-769db29823bd/bin/ukojak-verify-ImItNfHLgk/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)