./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version cf1a7837 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_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV --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 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:03:30,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:03:30,633 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-12 00:03:30,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:03:30,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:03:30,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:03:30,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:03:30,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:03:30,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:03:30,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:03:30,673 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:03:30,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:03:30,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:03:30,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:03:30,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:03:30,676 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:03:30,676 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:03:30,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:03:30,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:03:30,678 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:03:30,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:03:30,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:03:30,680 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:03:30,681 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:03:30,681 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:03:30,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:03:30,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:30,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:03:30,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:03:30,684 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:03:30,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:03:30,685 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_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2023-11-12 00:03:30,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:03:30,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:03:30,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:03:30,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:03:30,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:03:30,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2023-11-12 00:03:34,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:03:34,693 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:03:34,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2023-11-12 00:03:34,710 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/data/d8f6fe769/84bf59ec89744f7d8ea70b00e4b9cf29/FLAG5b8f1b22d [2023-11-12 00:03:34,725 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/data/d8f6fe769/84bf59ec89744f7d8ea70b00e4b9cf29 [2023-11-12 00:03:34,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:03:34,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:03:34,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:34,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:03:34,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:03:34,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:34" (1/1) ... [2023-11-12 00:03:34,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a92f140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:34, skipping insertion in model container [2023-11-12 00:03:34,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:34" (1/1) ... [2023-11-12 00:03:34,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:03:35,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:35,204 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:03:35,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:35,321 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:03:35,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35 WrapperNode [2023-11-12 00:03:35,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:35,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:35,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:03:35,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:03:35,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,429 INFO L138 Inliner]: procedures = 125, calls = 84, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 393 [2023-11-12 00:03:35,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:35,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:03:35,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:03:35,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:03:35,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:03:35,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:03:35,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:03:35,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:03:35,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:35" (1/1) ... [2023-11-12 00:03:35,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:03:35,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:03:35,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:03:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:03:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:03:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:03:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:03:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:03:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:03:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:03:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:03:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:03:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:03:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:03:35,744 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:03:35,747 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:03:36,394 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:03:36,610 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:03:36,611 INFO L302 CfgBuilder]: Removed 33 assume(true) statements. [2023-11-12 00:03:36,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:36 BoogieIcfgContainer [2023-11-12 00:03:36,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:03:36,616 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:03:36,616 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:03:36,627 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:03:36,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:36" (1/1) ... [2023-11-12 00:03:36,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:03:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 112 states and 177 transitions. [2023-11-12 00:03:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 177 transitions. [2023-11-12 00:03:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:03:36,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:36,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:36,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 112 states and 176 transitions. [2023-11-12 00:03:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 176 transitions. [2023-11-12 00:03:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:03:36,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:36,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 116 states and 183 transitions. [2023-11-12 00:03:36,966 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 183 transitions. [2023-11-12 00:03:36,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:03:36,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:36,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:37,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 118 states and 181 transitions. [2023-11-12 00:03:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 181 transitions. [2023-11-12 00:03:37,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:03:37,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 118 states and 180 transitions. [2023-11-12 00:03:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 180 transitions. [2023-11-12 00:03:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:03:37,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 119 states and 182 transitions. [2023-11-12 00:03:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 182 transitions. [2023-11-12 00:03:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:03:37,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:37,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:03:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 115 states and 177 transitions. [2023-11-12 00:03:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 177 transitions. [2023-11-12 00:03:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:03:37,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:03:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 114 states and 171 transitions. [2023-11-12 00:03:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2023-11-12 00:03:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:03:38,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 118 states and 178 transitions. [2023-11-12 00:03:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 178 transitions. [2023-11-12 00:03:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:03:38,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:38,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:38,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 118 states and 174 transitions. [2023-11-12 00:03:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2023-11-12 00:03:38,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:03:38,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:03:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 120 states and 172 transitions. [2023-11-12 00:03:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2023-11-12 00:03:39,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:03:39,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:03:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 122 states and 170 transitions. [2023-11-12 00:03:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 170 transitions. [2023-11-12 00:03:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:03:39,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 132 states and 181 transitions. [2023-11-12 00:03:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2023-11-12 00:03:41,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:03:41,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:41,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:42,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 138 states and 184 transitions. [2023-11-12 00:03:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 184 transitions. [2023-11-12 00:03:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:03:42,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:42,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:03:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 136 states and 180 transitions. [2023-11-12 00:03:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 180 transitions. [2023-11-12 00:03:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:03:43,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:43,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:43,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:03:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:43,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:03:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:43,721 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2023-11-12 00:03:43,762 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-12 00:03:43,764 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem27 [2023-11-12 00:03:43,765 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-12 00:03:43,765 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem30 [2023-11-12 00:03:43,765 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem29 [2023-11-12 00:03:43,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:03:43 ImpRootNode [2023-11-12 00:03:43,776 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:03:43,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:03:43,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:03:43,777 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:03:43,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:36" (3/4) ... [2023-11-12 00:03:43,778 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 00:03:43,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-12 00:03:43,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem27 [2023-11-12 00:03:43,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-12 00:03:43,800 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem29 [2023-11-12 00:03:43,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem30 [2023-11-12 00:03:43,858 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:03:43,858 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:03:43,860 INFO L158 Benchmark]: Toolchain (without parser) took 9129.30ms. Allocated memory was 186.6MB in the beginning and 237.0MB in the end (delta: 50.3MB). Free memory was 136.6MB in the beginning and 167.6MB in the end (delta: -31.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,863 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:03:43,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.84ms. Allocated memory is still 186.6MB. Free memory was 136.6MB in the beginning and 118.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.99ms. Allocated memory is still 186.6MB. Free memory was 118.3MB in the beginning and 115.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,865 INFO L158 Benchmark]: Boogie Preprocessor took 72.26ms. Allocated memory is still 186.6MB. Free memory was 115.7MB in the beginning and 112.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,866 INFO L158 Benchmark]: RCFGBuilder took 1109.97ms. Allocated memory is still 186.6MB. Free memory was 112.1MB in the beginning and 127.6MB in the end (delta: -15.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,867 INFO L158 Benchmark]: CodeCheck took 7159.67ms. Allocated memory was 186.6MB in the beginning and 237.0MB in the end (delta: 50.3MB). Free memory was 127.6MB in the beginning and 169.7MB in the end (delta: -42.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,870 INFO L158 Benchmark]: Witness Printer took 82.60ms. Allocated memory is still 237.0MB. Free memory was 169.7MB in the beginning and 167.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:43,873 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, 112 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1258 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 441 mSDsluCounter, 898 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 522 mSDsCounter, 374 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1119 IncrementalHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 374 mSolverCounterUnsat, 376 mSDtfsCounter, 1119 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1424 GetRequests, 1318 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3497 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 30/30 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE, EXPR !(!node) [L643] EXPR node->next = node [L644] EXPR node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE, EXPR !(!item) [L648] EXPR item->slist = node [L649] EXPR item->next = data [L650] EXPR data = item [L639-L651] { struct node *node = malloc(sizeof *node); if (!node) abort(); node->next = node; node->value = __VERIFIER_nondet_int(); struct list *item = malloc(sizeof *item); if (!item) abort(); item->slist = node; item->next = data; data = item; } VAL [data={-2:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-2:0}, shape={-2:0}] [L616] shape->next VAL [shape={-2:0}, shape={-2:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-2:0}, shape={-2:0}] [L623] EXPR shape->next VAL [shape={-2:0}, shape={-2:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-2:0}, shape={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-2:0}, shape={-2:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "merge_sort-1.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.84ms. Allocated memory is still 186.6MB. Free memory was 136.6MB in the beginning and 118.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.99ms. Allocated memory is still 186.6MB. Free memory was 118.3MB in the beginning and 115.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.26ms. Allocated memory is still 186.6MB. Free memory was 115.7MB in the beginning and 112.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1109.97ms. Allocated memory is still 186.6MB. Free memory was 112.1MB in the beginning and 127.6MB in the end (delta: -15.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 7159.67ms. Allocated memory was 186.6MB in the beginning and 237.0MB in the end (delta: 50.3MB). Free memory was 127.6MB in the beginning and 169.7MB in the end (delta: -42.1MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 82.60ms. Allocated memory is still 237.0MB. Free memory was 169.7MB in the beginning and 167.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem27 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem30 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem29 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem27 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem29 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem30 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 00:03:43,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a00d686-e1b0-4cf0-8cfa-d0fa52b59a6b/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)