./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:50,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:50,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-19 03:57:50,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:50,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:50,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:50,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:50,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:50,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:50,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:50,715 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:50,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:50,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:50,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:50,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:50,718 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:57:50,718 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:57:50,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:50,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:50,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:50,720 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:50,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:50,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:50,722 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:50,723 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:50,723 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:50,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:50,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:50,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:50,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:50,726 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:50,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:50,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8287e6117d458104c3f33a0e7a83f771b50c3974e23296edc32c92f0b8cae546 [2023-11-19 03:57:51,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:51,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:51,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:51,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:51,075 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:51,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/forester-heap/dll-optional-2.i [2023-11-19 03:57:54,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:54,458 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:54,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/sv-benchmarks/c/forester-heap/dll-optional-2.i [2023-11-19 03:57:54,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/data/fcd7bc9d7/4dffd666ba6845bebfd2622d9a3e4a5a/FLAG37a2c4029 [2023-11-19 03:57:54,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/data/fcd7bc9d7/4dffd666ba6845bebfd2622d9a3e4a5a [2023-11-19 03:57:54,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:54,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:54,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:54,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:54,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:54,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:54" (1/1) ... [2023-11-19 03:57:54,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f049ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:54, skipping insertion in model container [2023-11-19 03:57:54,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:54" (1/1) ... [2023-11-19 03:57:54,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:54,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:54,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:55,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:55,060 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:55,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55 WrapperNode [2023-11-19 03:57:55,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:55,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:55,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:55,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:55,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,107 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2023-11-19 03:57:55,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:55,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:55,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:55,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:55,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:55,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:55,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:55,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:55,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:55,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:55,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:55,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:57:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:57:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:57:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:57:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:57:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:57:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:55,460 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:55,462 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:55,760 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:55,969 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:55,969 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 03:57:55,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:55 BoogieIcfgContainer [2023-11-19 03:57:55,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:55,976 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:55,976 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:55,986 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:55,987 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2023-11-19 03:57:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2023-11-19 03:57:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:57:56,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:56,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:56,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-11-19 03:57:56,717 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-11-19 03:57:56,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:57:56,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:56,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-11-19 03:57:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-11-19 03:57:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:57:57,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:57,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:57,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:57,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:57,957 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:57:57,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:57,981 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:57,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:57,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:57,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:57,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:57,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:57,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:57,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:57,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 03:57:57,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:57,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 03:57:57,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:57,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:57,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem15 [2023-11-19 03:57:57,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:57 ImpRootNode [2023-11-19 03:57:57,992 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:57,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:57,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:57,994 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:57,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:55" (3/4) ... [2023-11-19 03:57:57,997 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:57:58,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:58,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:58,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:58,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:58,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:58,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:58,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:58,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:58,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:58,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem15 [2023-11-19 03:57:58,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-19 03:57:58,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 03:57:58,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 03:57:58,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 03:57:58,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 03:57:58,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:57:58,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:58,051 INFO L158 Benchmark]: Toolchain (without parser) took 3560.52ms. Allocated memory is still 165.7MB. Free memory was 136.8MB in the beginning and 75.5MB in the end (delta: 61.3MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,051 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:58,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.11ms. Allocated memory is still 165.7MB. Free memory was 136.8MB in the beginning and 118.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.73ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,053 INFO L158 Benchmark]: Boogie Preprocessor took 45.40ms. Allocated memory is still 165.7MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,054 INFO L158 Benchmark]: RCFGBuilder took 820.15ms. Allocated memory is still 165.7MB. Free memory was 114.7MB in the beginning and 106.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,054 INFO L158 Benchmark]: CodeCheck took 2016.26ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 78.6MB in the end (delta: 27.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,055 INFO L158 Benchmark]: Witness Printer took 56.91ms. Allocated memory is still 165.7MB. Free memory was 78.6MB in the beginning and 75.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:57:58,058 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: 1.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 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, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 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 0.32ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.11ms. Allocated memory is still 165.7MB. Free memory was 136.8MB in the beginning and 118.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.73ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.40ms. Allocated memory is still 165.7MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 820.15ms. Allocated memory is still 165.7MB. Free memory was 114.7MB in the beginning and 106.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 2016.26ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 78.6MB in the end (delta: 27.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Witness Printer took 56.91ms. Allocated memory is still 165.7MB. Free memory was 78.6MB in the beginning and 75.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem15 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:57:58,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1dc334c-2fc8-4b56-9018-3217c50850e2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)