./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/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_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/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_5a11004d-56be-4b66-b935-ebbcbaa65bff/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 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:18,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:18,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 04:07:18,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:07:18,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:07:18,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:18,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:18,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:18,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:18,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:18,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:07:18,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:18,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:18,297 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:07:18,297 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:07:18,298 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:07:18,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:18,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:07:18,299 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:18,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:18,300 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:18,301 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:18,302 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:18,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:18,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:18,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:18,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:18,305 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:07:18,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:07:18,306 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_5a11004d-56be-4b66-b935-ebbcbaa65bff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2023-11-19 04:07:18,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:18,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:18,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:18,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:18,710 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:18,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-examples/relax-1.i [2023-11-19 04:07:21,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:22,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:22,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/sv-benchmarks/c/array-examples/relax-1.i [2023-11-19 04:07:22,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/data/b19e3d467/2d3d5a496f9548c7af8bb23743adbaad/FLAGccbefe34d [2023-11-19 04:07:22,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/data/b19e3d467/2d3d5a496f9548c7af8bb23743adbaad [2023-11-19 04:07:22,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:22,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:22,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:22,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:22,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:22,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec7cfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22, skipping insertion in model container [2023-11-19 04:07:22,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:22,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:22,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:22,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:22,594 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:22,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22 WrapperNode [2023-11-19 04:07:22,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:22,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:22,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:22,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:22,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,655 INFO L138 Inliner]: procedures = 120, calls = 29, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 169 [2023-11-19 04:07:22,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:22,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:22,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:22,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:22,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:22,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:22,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:22,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:22,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:22" (1/1) ... [2023-11-19 04:07:22,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:22,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:22,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:07:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:07:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:07:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:07:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:07:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:22,889 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:22,891 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:07:23,423 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:07:23,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:07:23,516 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 04:07:23,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:23 BoogieIcfgContainer [2023-11-19 04:07:23,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:07:23,532 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:07:23,532 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:07:23,540 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:07:23,540 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:23" (1/1) ... [2023-11-19 04:07:23,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:07:23,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 84 states and 100 transitions. [2023-11-19 04:07:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 100 transitions. [2023-11-19 04:07:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:07:23,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:23,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:24,045 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 04:07:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:24,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 86 states and 104 transitions. [2023-11-19 04:07:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2023-11-19 04:07:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:07:24,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:24,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:24,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:24,330 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 04:07:24,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:07:24 ImpRootNode [2023-11-19 04:07:24,361 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:07:24,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:07:24,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:07:24,362 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:07:24,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:23" (3/4) ... [2023-11-19 04:07:24,365 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:07:24,418 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a11004d-56be-4b66-b935-ebbcbaa65bff/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:07:24,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:07:24,419 INFO L158 Benchmark]: Toolchain (without parser) took 2317.42ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 80.8MB in the end (delta: 39.1MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,420 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 66.7MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:24,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.88ms. Allocated memory is still 163.6MB. Free memory was 119.5MB in the beginning and 102.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.66ms. Allocated memory is still 163.6MB. Free memory was 102.1MB in the beginning and 99.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,428 INFO L158 Benchmark]: Boogie Preprocessor took 36.61ms. Allocated memory is still 163.6MB. Free memory was 99.6MB in the beginning and 97.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:24,429 INFO L158 Benchmark]: RCFGBuilder took 836.94ms. Allocated memory is still 163.6MB. Free memory was 97.5MB in the beginning and 113.7MB in the end (delta: -16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,429 INFO L158 Benchmark]: CodeCheck took 829.43ms. Allocated memory is still 163.6MB. Free memory was 113.7MB in the beginning and 82.9MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,430 INFO L158 Benchmark]: Witness Printer took 56.79ms. Allocated memory is still 163.6MB. Free memory was 82.9MB in the beginning and 80.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:24,439 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, 84 locations, 34 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 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, 0.1s SatisfiabilityAnalysisTime, 0.3s 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: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1073741824, a={-2:0}, a={-2:0}, a_length=4294967294, i=0, pat={-1:0}, pat={-1:0}, pat_length=1073741824, shift=0] [L582] COND TRUE i