./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9 --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 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:29:52,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:29:52,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 01:29:52,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:29:52,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:29:52,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:29:52,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:29:52,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:29:52,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:29:52,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:29:52,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:29:52,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:29:52,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:29:52,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:29:52,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:29:52,396 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:29:52,397 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:29:52,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:29:52,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:29:52,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:29:52,398 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:29:52,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:29:52,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:29:52,401 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:29:52,402 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:29:52,402 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:29:52,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:29:52,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:29:52,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:29:52,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:29:52,404 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:29:52,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:29:52,405 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_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c [2023-12-03 01:29:52,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:29:52,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:29:52,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:29:52,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:29:52,626 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:29:52,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2023-12-03 01:29:55,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:29:55,598 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:29:55,599 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2023-12-03 01:29:55,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/data/40f1f4269/28875bf7c2294300a5550adf92f0f94e/FLAG32377b800 [2023-12-03 01:29:55,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/data/40f1f4269/28875bf7c2294300a5550adf92f0f94e [2023-12-03 01:29:55,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:29:55,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:29:55,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:29:55,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:29:55,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:29:55,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:29:55" (1/1) ... [2023-12-03 01:29:55,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786fce2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:55, skipping insertion in model container [2023-12-03 01:29:55,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:29:55" (1/1) ... [2023-12-03 01:29:55,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:29:55,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:29:55,959 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:29:56,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:29:56,028 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:29:56,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56 WrapperNode [2023-12-03 01:29:56,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:29:56,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:29:56,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:29:56,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:29:56,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,069 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2023-12-03 01:29:56,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:29:56,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:29:56,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:29:56,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:29:56,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:29:56,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:29:56,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:29:56,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:29:56,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:29:56,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:29:56,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:29:56,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:29:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:29:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:29:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:29:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:29:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:29:56,254 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:29:56,256 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:29:56,437 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:29:56,486 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:29:56,486 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-03 01:29:56,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:29:56 BoogieIcfgContainer [2023-12-03 01:29:56,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:29:56,489 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:29:56,489 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:29:56,499 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:29:56,499 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:29:56" (1/1) ... [2023-12-03 01:29:56,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:29:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:29:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2023-12-03 01:29:56,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2023-12-03 01:29:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:29:56,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:29:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:29:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:29:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:29:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:29:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2023-12-03 01:29:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2023-12-03 01:29:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 01:29:56,791 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:29:56,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:29:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:29:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:29:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:29:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2023-12-03 01:29:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2023-12-03 01:29:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:29:57,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:29:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:29:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:29:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:29:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:29:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2023-12-03 01:29:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2023-12-03 01:29:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:29:57,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:29:57,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:29:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:29:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:29:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:29:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 51 states and 96 transitions. [2023-12-03 01:29:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2023-12-03 01:29:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:29:59,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:29:59,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:29:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:29:59,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:29:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:29:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:29:59,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:29:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:29:59,462 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-12-03 01:29:59,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated [2023-12-03 01:29:59,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated [2023-12-03 01:29:59,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:29:59 ImpRootNode [2023-12-03 01:29:59,489 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:29:59,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:29:59,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:29:59,490 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:29:59,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:29:56" (3/4) ... [2023-12-03 01:29:59,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 01:29:59,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated [2023-12-03 01:29:59,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated [2023-12-03 01:29:59,532 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:29:59,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:29:59,534 INFO L158 Benchmark]: Toolchain (without parser) took 3902.90ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 76.6MB in the beginning and 132.6MB in the end (delta: -56.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:29:59,534 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:29:59,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.01ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 100.2MB in the end (delta: -23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:29:59,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.01ms. Allocated memory is still 134.2MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:29:59,536 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:29:59,537 INFO L158 Benchmark]: RCFGBuilder took 391.74ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 76.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-03 01:29:59,537 INFO L158 Benchmark]: CodeCheck took 3000.59ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 76.3MB in the beginning and 134.6MB in the end (delta: -58.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:29:59,538 INFO L158 Benchmark]: Witness Printer took 42.95ms. Allocated memory is still 172.0MB. Free memory was 134.6MB in the beginning and 132.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:29:59,541 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 102 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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: [L1000] SLL* head = malloc(sizeof(SLL)); [L1001] head->next = ((void*)0) [L1002] head->prev = ((void*)0) [L1003] head->data = 0 [L1005] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) [L1021] x->data = 1 [L1022] x->next = head [L1023] x->prev = ((void*)0) [L1024] head = x VAL [head={26929:0}, x={26929:0}] [L1050] x = head VAL [head={26929:0}, x={26929:0}] [L1053] EXPR x->data VAL [head={26929:0}, x={26929:0}] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next [L1059] x = x->next [L1060] COND TRUE \read(*x) [L1062] EXPR x->data VAL [head={26929:0}, x={-1:0}] [L1062] COND TRUE x->data != 1 [L1063] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-simple-white-blue-1.c", 16, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.01ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 100.2MB in the end (delta: -23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.01ms. Allocated memory is still 134.2MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.74ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 76.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 3000.59ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 76.3MB in the beginning and 134.6MB in the end (delta: -58.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.95ms. Allocated memory is still 172.0MB. Free memory was 134.6MB in the beginning and 132.6MB in the end (delta: 2.1MB). 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: IdentifierExpression #t~mem15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 01:29:59,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0369aa56-42c4-4396-9df9-26484ce5d2f6/bin/ukojak-verify-Qdu7aM0XO9/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)