./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-2.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_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/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_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/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_0ee5617a-78c0-4e14-932b-94ccae21d69e/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 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:17:53,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:17:53,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 20:17:53,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:17:53,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:17:53,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:17:53,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:17:53,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:17:53,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 20:17:53,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:17:53,646 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:17:53,646 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:17:53,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:17:53,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:17:53,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:17:53,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:17:53,647 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:17:53,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:17:53,648 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_0ee5617a-78c0-4e14-932b-94ccae21d69e/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 -> 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 [2024-11-13 20:17:54,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:17:54,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:17:54,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:17:54,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:17:54,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:17:54,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/dll-optional-2.i Unable to find full path for "g++" [2024-11-13 20:17:56,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:17:56,807 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:17:56,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/sv-benchmarks/c/forester-heap/dll-optional-2.i [2024-11-13 20:17:56,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/data/0025e5f74/f7fcc604332a43adb23bb37b00774c95/FLAG0ebc501a2 [2024-11-13 20:17:56,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/data/0025e5f74/f7fcc604332a43adb23bb37b00774c95 [2024-11-13 20:17:56,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:17:56,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:17:56,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:17:56,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:17:56,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:17:56,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:17:56" (1/1) ... [2024-11-13 20:17:56,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9f83b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:56, skipping insertion in model container [2024-11-13 20:17:56,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:17:56" (1/1) ... [2024-11-13 20:17:56,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:17:57,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:17:57,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:17:57,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:17:57,478 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:17:57,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57 WrapperNode [2024-11-13 20:17:57,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:17:57,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:17:57,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:17:57,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:17:57,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,542 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2024-11-13 20:17:57,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:17:57,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:17:57,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:17:57,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:17:57,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:17:57,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:17:57,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:17:57,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:17:57,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:17:57" (1/1) ... [2024-11-13 20:17:57,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:17:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:17:57,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:17:57,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:17:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:17:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:17:57,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:17:57,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:17:57,792 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:17:58,142 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-13 20:17:58,142 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:17:58,366 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:17:58,366 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-13 20:17:58,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:17:58 BoogieIcfgContainer [2024-11-13 20:17:58,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:17:58,368 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:17:58,368 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:17:58,381 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:17:58,381 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:17:58" (1/1) ... [2024-11-13 20:17:58,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:17:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:17:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-13 20:17:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-13 20:17:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:17:58,464 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:17:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:17:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:17:58,860 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 20:17:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:17:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2024-11-13 20:17:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2024-11-13 20:17:59,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:17:59,400 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:17:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:17:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:17:59,778 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 20:18:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:18:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-13 20:18:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-13 20:18:00,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 20:18:00,522 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:18:00,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:18:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:18:00,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:18:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:18:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:18:01,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:18:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:18:01,115 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-13 20:18:01,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:18:01 ImpRootNode [2024-11-13 20:18:01,170 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:18:01,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:18:01,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:18:01,173 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:18:01,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:17:58" (3/4) ... [2024-11-13 20:18:01,175 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:18:01,230 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:18:01,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:18:01,232 INFO L158 Benchmark]: Toolchain (without parser) took 4375.29ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 50.3MB in the end (delta: 67.7MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-11-13 20:18:01,232 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:18:01,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.50ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:18:01,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.73ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:18:01,237 INFO L158 Benchmark]: Boogie Preprocessor took 49.53ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:18:01,239 INFO L158 Benchmark]: RCFGBuilder took 770.69ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 70.8MB in the end (delta: 26.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 20:18:01,240 INFO L158 Benchmark]: CodeCheck took 2803.46ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 51.9MB in the end (delta: 18.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-11-13 20:18:01,240 INFO L158 Benchmark]: Witness Printer took 58.88ms. Allocated memory is still 142.6MB. Free memory was 51.9MB in the beginning and 50.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:18:01,245 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 16 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1000] head->data = 0 [L1000] head->opt = head [L1001] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1003] COND FALSE !(__VERIFIER_nondet_int()) [L1006] x = head VAL [head={-1:0}, x={-1:0}] [L1007] COND TRUE x != ((void*)0) VAL [head={-1:0}, x={-1:0}] [L1009] EXPR x->data [L1009] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, x={-1:0}] [L1009] COND TRUE !(x->data == 2 && x->opt == x) [L1009] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.50ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.73ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.53ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 770.69ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 70.8MB in the end (delta: 26.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 2803.46ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 51.9MB in the end (delta: 18.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Witness Printer took 58.88ms. Allocated memory is still 142.6MB. Free memory was 51.9MB in the beginning and 50.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:18:01,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ee5617a-78c0-4e14-932b-94ccae21d69e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)