./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd9f812dd0592e9d2894b2831060b27794691dcfdafe5c5494c28350656b71ee --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:43:47,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:43:48,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 21:43:48,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:43:48,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:43:48,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:43:48,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:43:48,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:43:48,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:43:48,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:43:48,086 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:43:48,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:43:48,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:43:48,088 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:43:48,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:43:48,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:43:48,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:43:48,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:43:48,089 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:43:48,089 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:43:48,090 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:43:48,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:43:48,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:43:48,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:43:48,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:43:48,090 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:43:48,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:43:48,091 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_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm 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-memcleanup) ) 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 -> dd9f812dd0592e9d2894b2831060b27794691dcfdafe5c5494c28350656b71ee [2024-11-13 21:43:48,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:43:48,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:43:48,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:43:48,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:43:48,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:43:48,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/dll-01-1.i Unable to find full path for "g++" [2024-11-13 21:43:50,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:43:50,584 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:43:50,585 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/sv-benchmarks/c/forester-heap/dll-01-1.i [2024-11-13 21:43:50,612 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/data/ca79a2a47/f08ef36c856f49a6ba2174f7e8b31ec8/FLAGc94287230 [2024-11-13 21:43:50,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/data/ca79a2a47/f08ef36c856f49a6ba2174f7e8b31ec8 [2024-11-13 21:43:50,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:43:50,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:43:50,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:43:50,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:43:50,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:43:50,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:43:50" (1/1) ... [2024-11-13 21:43:50,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397058b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:50, skipping insertion in model container [2024-11-13 21:43:50,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:43:50" (1/1) ... [2024-11-13 21:43:50,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:43:51,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:43:51,069 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:43:51,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:43:51,177 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:43:51,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51 WrapperNode [2024-11-13 21:43:51,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:43:51,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:43:51,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:43:51,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:43:51,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,245 INFO L138 Inliner]: procedures = 119, calls = 57, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 237 [2024-11-13 21:43:51,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:43:51,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:43:51,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:43:51,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:43:51,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:43:51,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:43:51,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:43:51,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:43:51,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:43:51" (1/1) ... [2024-11-13 21:43:51,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:43:51,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:43:51,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:43:51,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:43:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:43:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:43:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 21:43:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 21:43:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:43:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:43:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:43:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:43:51,590 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:43:51,593 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:43:52,211 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 21:43:52,211 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:43:52,335 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:43:52,335 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-13 21:43:52,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:43:52 BoogieIcfgContainer [2024-11-13 21:43:52,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:43:52,336 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:43:52,336 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:43:52,348 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:43:52,348 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:43:52" (1/1) ... [2024-11-13 21:43:52,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:43:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 102 states and 159 transitions. [2024-11-13 21:43:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 159 transitions. [2024-11-13 21:43:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:43:52,441 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:52,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:52,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 98 states and 151 transitions. [2024-11-13 21:43:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 151 transitions. [2024-11-13 21:43:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:43:52,785 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:52,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:53,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 94 states and 143 transitions. [2024-11-13 21:43:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 143 transitions. [2024-11-13 21:43:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:43:53,337 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 93 states and 136 transitions. [2024-11-13 21:43:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2024-11-13 21:43:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:43:53,449 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:53,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 91 states and 132 transitions. [2024-11-13 21:43:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 132 transitions. [2024-11-13 21:43:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 21:43:54,552 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:54,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:54,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 95 states and 139 transitions. [2024-11-13 21:43:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 139 transitions. [2024-11-13 21:43:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 21:43:54,788 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:54,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 91 states and 131 transitions. [2024-11-13 21:43:55,037 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-13 21:43:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 21:43:55,038 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:55,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 97 states and 141 transitions. [2024-11-13 21:43:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 141 transitions. [2024-11-13 21:43:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 21:43:55,597 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:55,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 93 states and 133 transitions. [2024-11-13 21:43:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-13 21:43:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 21:43:55,805 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:56,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 94 states and 132 transitions. [2024-11-13 21:43:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-11-13 21:43:56,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 21:43:56,012 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:43:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 90 states and 125 transitions. [2024-11-13 21:43:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2024-11-13 21:43:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:43:56,476 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:44:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:44:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 100 states and 139 transitions. [2024-11-13 21:44:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2024-11-13 21:44:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:44:01,054 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:44:01,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:44:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:44:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:44:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:44:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 108 states and 157 transitions. [2024-11-13 21:44:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-13 21:44:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 21:44:02,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:44:02,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:44:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:44:02,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:44:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:44:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:44:02,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:44:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:44:02,871 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2024-11-13 21:44:02,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:44:02 ImpRootNode [2024-11-13 21:44:02,917 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:44:02,918 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:44:02,918 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:44:02,918 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:44:02,919 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:43:52" (3/4) ... [2024-11-13 21:44:02,920 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:44:02,974 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:44:02,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:44:02,977 INFO L158 Benchmark]: Toolchain (without parser) took 12331.04ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 118.1MB in the beginning and 57.5MB in the end (delta: 60.6MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2024-11-13 21:44:02,978 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:44:02,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.94ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 99.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:44:02,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.49ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:44:02,979 INFO L158 Benchmark]: Boogie Preprocessor took 41.16ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:44:02,979 INFO L158 Benchmark]: RCFGBuilder took 1046.49ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 66.9MB in the end (delta: 28.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:44:02,980 INFO L158 Benchmark]: CodeCheck took 10581.02ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 61.1MB in the end (delta: 5.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-11-13 21:44:02,982 INFO L158 Benchmark]: Witness Printer took 56.60ms. Allocated memory is still 176.2MB. Free memory was 61.1MB in the beginning and 57.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:44:02,984 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, 102 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1462 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 344 mSDsluCounter, 681 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 318 mSDsCounter, 232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 232 mSolverCounterUnsat, 363 mSDtfsCounter, 866 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1312 GetRequests, 1209 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3485 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 1045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 1/1 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: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) VAL [list={19884:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={19884:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={19884:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={19884:0}, list={19884:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={19884:0}, list={19884:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={19884:0}, list={19884:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={19884:0}, inner={19883:0}, len=1, list={19884:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={19884:0}, inner={19883:0}, len=1, list={19884:0}] [L1039] EXPR inner->inner VAL [end={19884:0}, inner={19883:0}, len=1, list={19884:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={19884:0}, inner={19883:0}, len=1, list={19884:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-01-1.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.94ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 99.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.49ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.16ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.49ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 66.9MB in the end (delta: 28.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 10581.02ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 61.1MB in the end (delta: 5.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Witness Printer took 56.60ms. Allocated memory is still 176.2MB. Free memory was 61.1MB in the beginning and 57.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:44:03,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75d0424-9ffb-4377-9606-96da82301562/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)