./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3 --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 0.3.0-dev-d790fec [2024-11-24 18:07:45,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:07:45,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-24 18:07:45,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:07:45,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:07:45,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:07:45,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:07:45,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:07:45,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:07:45,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:07:45,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:07:45,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:07:45,341 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:07:45,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:07:45,341 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:07:45,341 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:07:45,341 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:07:45,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:07:45,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:07:45,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:07:45,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:07:45,342 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:07:45,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:07:45,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3 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 [2024-11-24 18:07:45,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:07:45,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:07:45,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:07:45,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:07:45,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:07:45,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2024-11-24 18:07:49,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/data/173af214c/429812d16707489fb178cd462edd27b1/FLAG34f25a0f1 [2024-11-24 18:07:50,028 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:07:50,029 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2024-11-24 18:07:50,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/data/173af214c/429812d16707489fb178cd462edd27b1/FLAG34f25a0f1 [2024-11-24 18:07:50,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/data/173af214c/429812d16707489fb178cd462edd27b1 [2024-11-24 18:07:50,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:07:50,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:07:50,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:07:50,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:07:50,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:07:50,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263edc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50, skipping insertion in model container [2024-11-24 18:07:50,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:07:50,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:07:50,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:07:50,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:07:50,782 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:07:50,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50 WrapperNode [2024-11-24 18:07:50,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:07:50,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:07:50,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:07:50,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:07:50,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,854 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-11-24 18:07:50,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:07:50,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:07:50,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:07:50,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:07:50,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,880 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:07:50,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:07:50,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:07:50,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:07:50,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:07:50" (1/1) ... [2024-11-24 18:07:50,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:07:50,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:07:50,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:07:50,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:07:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 18:07:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 18:07:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 18:07:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 18:07:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:07:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:07:51,129 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:07:51,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:07:51,553 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-24 18:07:51,554 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:07:51,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:07:51,692 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 18:07:51,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:07:51 BoogieIcfgContainer [2024-11-24 18:07:51,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:07:51,696 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:07:51,697 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:07:51,713 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:07:51,714 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:07:51" (1/1) ... [2024-11-24 18:07:51,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:07:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:07:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2024-11-24 18:07:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2024-11-24 18:07:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-24 18:07:51,819 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:07:51,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:07:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:07:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:07:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:07:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2024-11-24 18:07:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2024-11-24 18:07:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-24 18:07:52,350 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:07:52,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:07:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:07:52,419 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:07:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:07:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:07:52,528 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:07:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:07:52,564 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-24 18:07:52,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:07:52 ImpRootNode [2024-11-24 18:07:52,604 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:07:52,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:07:52,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:07:52,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:07:52,608 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:07:51" (3/4) ... [2024-11-24 18:07:52,610 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 18:07:52,678 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-11-24 18:07:52,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:07:52,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:07:52,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:07:52,747 INFO L158 Benchmark]: Toolchain (without parser) took 2651.45ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 76.9MB in the end (delta: 14.7MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-24 18:07:52,748 INFO L158 Benchmark]: CDTParser took 2.01ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:07:52,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.84ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 74.9MB in the end (delta: 16.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:07:52,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.63ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:07:52,752 INFO L158 Benchmark]: Boogie Preprocessor took 36.23ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:07:52,752 INFO L158 Benchmark]: RCFGBuilder took 801.10ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 50.3MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 18:07:52,753 INFO L158 Benchmark]: CodeCheck took 907.62ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 81.0MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:07:52,754 INFO L158 Benchmark]: Witness Printer took 140.67ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 76.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:07:52,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 58 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: 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={-2:0}] [L517] COND TRUE i < N VAL [N=1073741824, best={-1:0}, i=0, max=0, prev={-2:0}] [L518] best[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.01ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.84ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 74.9MB in the end (delta: 16.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.63ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.23ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 801.10ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 50.3MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 907.62ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 81.0MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 140.67ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 76.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-24 18:07:52,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09dd403a-1e40-4fbd-ae93-225a4715dafe/bin/ukojak-verify-ENZ3QT5qd3/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)