./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/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_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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 22:08:39,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:08:39,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:08:39,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:08:39,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:08:39,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:08:39,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:08:39,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:08:39,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:08:39,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:08:39,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:08:39,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:08:39,943 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:08:39,943 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:08:39,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:08:39,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:08:39,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:08:39,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:08:39,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:08:39,944 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:08:39,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:08:39,944 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_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/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 ! call(reach_error())) ) 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 22:08:40,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:08:40,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:08:40,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:08:40,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:08:40,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:08:40,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/dll-optional-2.i Unable to find full path for "g++" [2024-11-13 22:08:42,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:08:42,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:08:42,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/sv-benchmarks/c/forester-heap/dll-optional-2.i [2024-11-13 22:08:42,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/data/591c0d244/0871ed3af2e94abba5c1e3800404e3fa/FLAG19b061e64 [2024-11-13 22:08:42,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/data/591c0d244/0871ed3af2e94abba5c1e3800404e3fa [2024-11-13 22:08:42,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:08:42,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:08:42,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:08:42,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:08:42,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:08:42,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:08:42" (1/1) ... [2024-11-13 22:08:42,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f6b08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:42, skipping insertion in model container [2024-11-13 22:08:42,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:08:42" (1/1) ... [2024-11-13 22:08:42,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:08:43,172 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/sv-benchmarks/c/forester-heap/dll-optional-2.i[22706,22719] [2024-11-13 22:08:43,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:08:43,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:08:43,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/sv-benchmarks/c/forester-heap/dll-optional-2.i[22706,22719] [2024-11-13 22:08:43,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:08:43,310 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:08:43,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43 WrapperNode [2024-11-13 22:08:43,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:08:43,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:08:43,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:08:43,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:08:43,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,370 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2024-11-13 22:08:43,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:08:43,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:08:43,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:08:43,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:08:43,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:08:43,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:08:43,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:08:43,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:08:43,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:43" (1/1) ... [2024-11-13 22:08:43,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:08:43,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:08:43,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:08:43,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:08:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:08:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:08:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 22:08:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:08:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 22:08:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 22:08:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:08:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:08:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:08:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:08:43,675 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:08:43,678 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:08:43,994 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-13 22:08:43,994 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:08:44,182 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:08:44,182 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-13 22:08:44,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:44 BoogieIcfgContainer [2024-11-13 22:08:44,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:08:44,185 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:08:44,185 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:08:44,196 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:08:44,197 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:44" (1/1) ... [2024-11-13 22:08:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:08:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2024-11-13 22:08:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2024-11-13 22:08:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 22:08:44,277 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:44,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:44,577 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 22:08:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2024-11-13 22:08:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-11-13 22:08:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:08:44,793 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:44,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:44,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:08:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:45,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:08:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:45,460 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 22:08:45,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:08:45 ImpRootNode [2024-11-13 22:08:45,493 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:08:45,494 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:08:45,495 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:08:45,495 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:08:45,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:44" (3/4) ... [2024-11-13 22:08:45,496 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:08:45,538 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:08:45,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:08:45,539 INFO L158 Benchmark]: Toolchain (without parser) took 2864.34ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 82.3MB in the end (delta: 9.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-13 22:08:45,540 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:45,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.08ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 74.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:08:45,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:45,541 INFO L158 Benchmark]: Boogie Preprocessor took 45.71ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 70.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:08:45,541 INFO L158 Benchmark]: RCFGBuilder took 764.14ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 45.1MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 22:08:45,542 INFO L158 Benchmark]: CodeCheck took 1308.70ms. Allocated memory is still 117.4MB. Free memory was 45.1MB in the beginning and 83.9MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:45,542 INFO L158 Benchmark]: Witness Printer took 44.17ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 82.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:45,544 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 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 - CounterExampleResult [Line: 1009]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) [L1000] COND TRUE __VERIFIER_nondet_int() [L1000] head->data = 2 [L1000] head->opt = malloc(sizeof(SLL)) [L1000] EXPR head->opt [L1000] head->opt->next = ((void*)0) [L1001] SLL* x = head; VAL [head={17272:0}, x={17272:0}] [L1003] COND FALSE !(__VERIFIER_nondet_int()) [L1006] x = head VAL [head={17272:0}, x={17272:0}] [L1007] COND TRUE x != ((void*)0) VAL [head={17272:0}, x={17272:0}] [L1009] EXPR x->data [L1009] EXPR x->data == 2 && x->opt == x [L1009] EXPR x->opt [L1009] EXPR x->data == 2 && x->opt == x VAL [head={17272:0}, x={17272:0}] [L1009] COND TRUE !(x->data == 2 && x->opt == x) [L1009] reach_error() VAL [head={17272:0}, x={17272:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.08ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 74.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.71ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 70.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 764.14ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 45.1MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1308.70ms. Allocated memory is still 117.4MB. Free memory was 45.1MB in the beginning and 83.9MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.17ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 82.3MB 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 22:08:45,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bcd452b-1e6b-48e9-84a0-c4c0ed7101ad/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