./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/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_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/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_006b13a2-f1a0-4a2d-a881-25a85df870ff/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 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:39:53,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:39:53,856 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 02:39:53,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:39:53,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:39:53,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:39:53,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:39:53,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:39:53,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:39:53,919 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:39:53,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:39:53,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:39:53,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:39:53,921 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:39:53,922 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:39:53,922 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:39:53,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:39:53,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:39:53,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:39:53,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:39:53,925 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:39:53,926 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:39:53,926 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:39:53,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:39:53,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:39:53,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:39:53,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:39:53,929 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:39:53,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:39:53,929 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_006b13a2-f1a0-4a2d-a881-25a85df870ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 [2023-11-19 02:39:54,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:39:54,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:39:54,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:39:54,281 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:39:54,282 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:39:54,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2023-11-19 02:39:57,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:39:57,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:39:57,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2023-11-19 02:39:57,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/7aacf6173/a9b2bdcda96d411daa7c58b9880356aa/FLAG8772df9f1 [2023-11-19 02:39:57,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/7aacf6173/a9b2bdcda96d411daa7c58b9880356aa [2023-11-19 02:39:57,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:39:57,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:39:57,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:39:57,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:39:57,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:39:57,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:57" (1/1) ... [2023-11-19 02:39:57,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273eb3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:57, skipping insertion in model container [2023-11-19 02:39:57,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:57" (1/1) ... [2023-11-19 02:39:57,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:39:58,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:39:58,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:39:58,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:39:58,393 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:39:58,400 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:39:58,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58 WrapperNode [2023-11-19 02:39:58,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:39:58,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:39:58,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:39:58,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:39:58,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,458 INFO L138 Inliner]: procedures = 166, calls = 71, calls flagged for inlining = 31, calls inlined = 6, statements flattened = 42 [2023-11-19 02:39:58,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:39:58,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:39:58,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:39:58,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:39:58,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:39:58,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:39:58,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:39:58,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:39:58,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:39:58,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:39:58,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:39:58,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:39:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:39:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:39:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:39:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:39:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:39:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:39:58,750 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:39:58,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:39:58,882 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:39:58,961 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:39:58,962 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:39:58,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:58 BoogieIcfgContainer [2023-11-19 02:39:58,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:39:58,968 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:39:58,968 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:39:58,978 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:39:58,982 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:58" (1/1) ... [2023-11-19 02:39:58,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:39:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 02:39:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 02:39:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:39:59,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:59,321 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 02:39:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 02:39:59,380 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 02:39:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:39:59,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:59,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:39:59,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:39:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:39:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:39:59,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:39:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:39:59,509 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:39:59,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:39:59 ImpRootNode [2023-11-19 02:39:59,535 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:39:59,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:39:59,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:39:59,537 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:39:59,538 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:58" (3/4) ... [2023-11-19 02:39:59,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:39:59,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:39:59,543 INFO L158 Benchmark]: Toolchain (without parser) took 1862.98ms. Allocated memory is still 172.0MB. Free memory was 139.5MB in the beginning and 104.9MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,543 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:39:59,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.35ms. Allocated memory is still 172.0MB. Free memory was 139.5MB in the beginning and 116.9MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.20ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 114.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,546 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 172.0MB. Free memory was 114.9MB in the beginning and 113.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,546 INFO L158 Benchmark]: RCFGBuilder took 477.68ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 128.0MB in the end (delta: -14.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,547 INFO L158 Benchmark]: CodeCheck took 568.03ms. Allocated memory is still 172.0MB. Free memory was 127.0MB in the beginning and 104.9MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 02:39:59,548 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 172.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:39:59,551 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, 12 locations, 4 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, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 15 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 - UnprovableResult [Line: 774]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 774. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L775] CALL entry_point() [L770] int condition = __VERIFIER_nondet_int(); [L771] CALL, EXPR alloc_unsafe_16(condition) [L761] CALL, EXPR ldv_malloc(sizeof(struct A16)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L761] RET, EXPR ldv_malloc(sizeof(struct A16)) [L761] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L762] return p; [L771] RET, EXPR alloc_unsafe_16(condition) [L771] struct A16 *p = alloc_unsafe_16(condition); [L772] CALL free_16(p, condition) [L765] COND FALSE !(\read(condition)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1:0}, p={-1:0}, p={-1:0}] [L772] RET free_16(p, condition) [L775] RET entry_point() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.35ms. Allocated memory is still 172.0MB. Free memory was 139.5MB in the beginning and 116.9MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.20ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 114.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.04ms. Allocated memory is still 172.0MB. Free memory was 114.9MB in the beginning and 113.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.68ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 128.0MB in the end (delta: -14.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 568.03ms. Allocated memory is still 172.0MB. Free memory was 127.0MB in the beginning and 104.9MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 172.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:39:59,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/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_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/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 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:40:02,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:40:02,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2023-11-19 02:40:02,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:40:02,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:40:02,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:40:02,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:40:02,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:40:02,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:40:02,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:40:02,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:40:02,358 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:40:02,359 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:40:02,360 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:40:02,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:40:02,361 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:40:02,362 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:40:02,362 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:40:02,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:40:02,364 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:40:02,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:40:02,365 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:40:02,365 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:40:02,365 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:40:02,366 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:40:02,366 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:40:02,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:40:02,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:40:02,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:40:02,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:40:02,370 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:40:02,370 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:40:02,370 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:40:02,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:40:02,371 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_006b13a2-f1a0-4a2d-a881-25a85df870ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 [2023-11-19 02:40:02,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:40:02,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:40:02,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:40:02,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:40:02,806 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:40:02,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2023-11-19 02:40:06,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:40:06,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:40:06,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2023-11-19 02:40:06,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/f281c9f50/629d2d93321d4dfca9129160013e7595/FLAG5ae244c80 [2023-11-19 02:40:06,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/data/f281c9f50/629d2d93321d4dfca9129160013e7595 [2023-11-19 02:40:06,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:40:06,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:40:06,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:40:06,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:40:06,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:40:06,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:06" (1/1) ... [2023-11-19 02:40:06,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87efea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:06, skipping insertion in model container [2023-11-19 02:40:06,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:06" (1/1) ... [2023-11-19 02:40:06,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:40:07,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:40:07,071 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 02:40:07,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:40:07,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:40:07,201 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:40:07,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:40:07,290 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:40:07,298 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:40:07,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07 WrapperNode [2023-11-19 02:40:07,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:40:07,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:40:07,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:40:07,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:40:07,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,357 INFO L138 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 31, calls inlined = 6, statements flattened = 41 [2023-11-19 02:40:07,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:40:07,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:40:07,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:40:07,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:40:07,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:40:07,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:40:07,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:40:07,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:40:07,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:40:07,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:40:07,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:40:07,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:40:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:40:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:40:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:40:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:40:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:40:07,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:40:07,629 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:40:07,632 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:40:07,780 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:40:07,873 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:40:07,874 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:40:07,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:07 BoogieIcfgContainer [2023-11-19 02:40:07,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:40:07,880 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:40:07,880 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:40:07,891 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:40:07,892 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:07" (1/1) ... [2023-11-19 02:40:07,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:40:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:40:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 02:40:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 02:40:07,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:40:07,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:40:07,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:40:07,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:40:07,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:40:07,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:40:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:40:08,114 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:40:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:40:08,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 02:40:08,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:40:08,295 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 02:40:08,298 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:40:08,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:40:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:40:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 02:40:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 02:40:08,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:40:08,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:40:08,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:40:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:40:08,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:40:08,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:40:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:40:08,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:40:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:40:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:40:08,548 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:40:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:40:08,574 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:40:08,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 02:40:08,601 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:40:08,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:40:08 ImpRootNode [2023-11-19 02:40:08,632 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:40:08,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:40:08,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:40:08,633 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:40:08,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:07" (3/4) ... [2023-11-19 02:40:08,636 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:40:08,637 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:40:08,638 INFO L158 Benchmark]: Toolchain (without parser) took 2173.75ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 54.1MB in the beginning and 70.8MB in the end (delta: -16.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-19 02:40:08,639 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:40:08,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.91ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 53.8MB in the beginning and 89.4MB in the end (delta: -35.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 02:40:08,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.17ms. Allocated memory is still 121.6MB. Free memory was 89.4MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:40:08,641 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 85.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:40:08,642 INFO L158 Benchmark]: RCFGBuilder took 489.20ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 68.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:40:08,643 INFO L158 Benchmark]: CodeCheck took 752.42ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 71.5MB in the end (delta: -3.4MB). Peak memory consumption was 163.5kB. Max. memory is 16.1GB. [2023-11-19 02:40:08,643 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 121.6MB. Free memory was 71.5MB in the beginning and 70.8MB in the end (delta: 646.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:40:08,660 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 8 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 6 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 - UnprovableResult [Line: 774]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 774. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L775] CALL entry_point() [L770] int condition = __VERIFIER_nondet_int(); [L771] CALL, EXPR alloc_unsafe_16(condition) [L761] CALL, EXPR ldv_malloc(sizeof(struct A16)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L761] RET, EXPR ldv_malloc(sizeof(struct A16)) [L761] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L762] return p; [L771] RET, EXPR alloc_unsafe_16(condition) [L771] struct A16 *p = alloc_unsafe_16(condition); [L772] CALL free_16(p, condition) [L765] COND FALSE !(\read(condition)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1:0}, p={2:0}, p={2:0}] [L772] RET free_16(p, condition) [L775] RET entry_point() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 833.91ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 53.8MB in the beginning and 89.4MB in the end (delta: -35.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.17ms. Allocated memory is still 121.6MB. Free memory was 89.4MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 85.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.20ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 68.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 752.42ms. Allocated memory is still 121.6MB. Free memory was 68.1MB in the beginning and 71.5MB in the end (delta: -3.4MB). Peak memory consumption was 163.5kB. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 121.6MB. Free memory was 71.5MB in the beginning and 70.8MB in the end (delta: 646.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:40:08,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_006b13a2-f1a0-4a2d-a881-25a85df870ff/bin/ukojak-verify-G8NBE6pJGL/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 Result: UNKNOWN: Overapproximated counterexample