./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_flag-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:56:05,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:56:05,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:56:05,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:56:05,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:56:05,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:56:05,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:56:05,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:56:05,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:56:05,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:56:05,658 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:56:05,658 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:56:05,658 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:56:05,658 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:56:05,659 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:56:05,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:56:05,659 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:56:05,659 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:56:05,659 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:56:05,660 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:56:05,660 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:56:05,660 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:56:05,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:56:05,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:56:05,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:56:05,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:56:05,661 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:56:05,662 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:56:05,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:56:05,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:56:05,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:56:05,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:56:05,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:56:05,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:56:05,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:56:05,664 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:56:05,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:56:05,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:56:05,665 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:56:05,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:56:05,666 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b [2024-11-14 03:56:06,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:56:06,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:56:06,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:56:06,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:56:06,069 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:56:06,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/list-properties/list_flag-1.i Unable to find full path for "g++" [2024-11-14 03:56:08,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:56:08,681 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:56:08,681 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/sv-benchmarks/c/list-properties/list_flag-1.i [2024-11-14 03:56:08,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/data/48cf68f8c/ee29cc304b7b4f80a989f02e2b681166/FLAGa1ffd41de [2024-11-14 03:56:08,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/data/48cf68f8c/ee29cc304b7b4f80a989f02e2b681166 [2024-11-14 03:56:08,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:56:08,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:56:08,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:08,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:56:08,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:56:08,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:08" (1/1) ... [2024-11-14 03:56:08,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9aff5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:08, skipping insertion in model container [2024-11-14 03:56:08,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:08" (1/1) ... [2024-11-14 03:56:08,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:56:09,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:09,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:56:09,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:09,442 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:56:09,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09 WrapperNode [2024-11-14 03:56:09,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:09,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:09,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:56:09,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:56:09,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,491 INFO L138 Inliner]: procedures = 124, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-14 03:56:09,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:09,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:56:09,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:56:09,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:56:09,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:56:09,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:56:09,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:56:09,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:56:09,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (1/1) ... [2024-11-14 03:56:09,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:56:09,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:09,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:56:09,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:56:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-14 03:56:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-14 03:56:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:56:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:56:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:56:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:56:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:56:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:56:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:56:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:56:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:56:09,773 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:56:09,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:56:09,801 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-14 03:56:09,971 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-14 03:56:09,971 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:56:10,032 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:56:10,032 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:56:10,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:10 BoogieIcfgContainer [2024-11-14 03:56:10,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:56:10,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:56:10,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:56:10,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:56:10,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:56:08" (1/3) ... [2024-11-14 03:56:10,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ab1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:10, skipping insertion in model container [2024-11-14 03:56:10,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:09" (2/3) ... [2024-11-14 03:56:10,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ab1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:10, skipping insertion in model container [2024-11-14 03:56:10,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:10" (3/3) ... [2024-11-14 03:56:10,045 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-1.i [2024-11-14 03:56:10,064 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:56:10,066 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG list_flag-1.i that has 2 procedures, 27 locations, 1 initial locations, 3 loop locations, and 2 error locations. [2024-11-14 03:56:10,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:56:10,140 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a84dc3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:56:10,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:56:10,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 21 states have (on average 1.619047619047619) internal successors, (34), 24 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:56:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:56:10,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:10,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:10,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:56:10,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:10,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2086406811, now seen corresponding path program 1 times [2024-11-14 03:56:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:10,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699862504] [2024-11-14 03:56:10,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:10,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:56:10,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699862504] [2024-11-14 03:56:10,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699862504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:10,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:10,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:56:10,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702576232] [2024-11-14 03:56:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:10,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:56:10,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:56:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:56:10,450 INFO L87 Difference]: Start difference. First operand has 26 states, 21 states have (on average 1.619047619047619) internal successors, (34), 24 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:56:10,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:10,497 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-14 03:56:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:56:10,499 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 03:56:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:10,504 INFO L225 Difference]: With dead ends: 25 [2024-11-14 03:56:10,504 INFO L226 Difference]: Without dead ends: 20 [2024-11-14 03:56:10,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:56:10,513 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:10,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:56:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-14 03:56:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-14 03:56:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:56:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-14 03:56:10,543 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2024-11-14 03:56:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:10,544 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-14 03:56:10,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:56:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-14 03:56:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:56:10,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:10,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:10,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:56:10,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:56:10,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash -74363599, now seen corresponding path program 1 times [2024-11-14 03:56:10,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:10,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498520203] [2024-11-14 03:56:10,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:10,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:56:10,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:56:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:56:10,613 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:56:10,613 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:56:10,615 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-14 03:56:10,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-14 03:56:10,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:56:10,622 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:56:10,643 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:56:10,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:56:10 BoogieIcfgContainer [2024-11-14 03:56:10,651 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:56:10,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:56:10,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:56:10,653 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:56:10,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:10" (3/4) ... [2024-11-14 03:56:10,654 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 03:56:10,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:56:10,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:56:10,691 INFO L158 Benchmark]: Toolchain (without parser) took 1807.38ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 59.3MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-14 03:56:10,691 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:10,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.96ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 101.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:56:10,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.77ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:10,693 INFO L158 Benchmark]: Boogie Preprocessor took 48.41ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:10,693 INFO L158 Benchmark]: RCFGBuilder took 490.25ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 83.4MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:56:10,693 INFO L158 Benchmark]: TraceAbstraction took 615.16ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 61.2MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:56:10,694 INFO L158 Benchmark]: Witness Printer took 38.33ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 59.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:10,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.96ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 101.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.77ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.41ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.25ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 83.4MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 615.16ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 61.2MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 38.33ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 59.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = __VERIFIER_nondet_int(); [L533] List p, a, t; [L534] a = (List) malloc(sizeof(struct node)) [L535] COND FALSE !(a == 0) VAL [a={-1:0}, flag=0] [L536] p = a VAL [a={-1:0}, flag=0, p={-1:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L548] p->h = 3 [L549] p = a VAL [flag=0, p={-1:0}] [L550] COND FALSE !(\read(flag)) VAL [p={-1:0}] [L554] EXPR p->h VAL [p={-1:0}] [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-14 03:56:10,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5438ac2e-33d6-4d27-9ac0-d8780e84b3ce/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)