./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:04:59,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:05:00,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-20 14:05:00,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:05:00,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:05:00,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:05:00,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:05:00,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:05:00,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:05:00,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:05:00,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:05:00,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:05:00,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:05:00,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:05:00,077 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:05:00,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:05:00,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:05:00,078 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:05:00,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:05:00,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:05:00,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:05:00,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:05:00,079 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:05:00,083 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:05:00,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:05:00,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:05:00,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:05:00,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:05:00,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:05:00,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:05:00,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:05:00,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:05:00,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:05:00,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:05:00,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:05:00,087 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2024-11-20 14:05:00,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:05:00,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:05:00,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:05:00,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:05:00,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:05:00,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-20 14:05:01,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:05:02,006 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:05:02,006 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-20 14:05:02,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3f441611/24ed2e0ec9864c60b80ee9f2a76e1927/FLAGd2223a05b [2024-11-20 14:05:02,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3f441611/24ed2e0ec9864c60b80ee9f2a76e1927 [2024-11-20 14:05:02,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:05:02,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:05:02,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:05:02,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:05:02,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:05:02,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c144554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02, skipping insertion in model container [2024-11-20 14:05:02,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:05:02,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:05:02,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:05:02,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:05:02,517 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:05:02,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02 WrapperNode [2024-11-20 14:05:02,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:05:02,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:05:02,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:05:02,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:05:02,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,562 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 236 [2024-11-20 14:05:02,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:05:02,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:05:02,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:05:02,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:05:02,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,644 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [40, 2, 6]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [0, 2, 1]. The 13 writes are split as follows [11, 0, 2]. [2024-11-20 14:05:02,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:05:02,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:05:02,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:05:02,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:05:02,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (1/1) ... [2024-11-20 14:05:02,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:05:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:05:02,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:05:02,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:05:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-20 14:05:02,792 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-20 14:05:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2024-11-20 14:05:02,793 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2024-11-20 14:05:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:05:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:05:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2024-11-20 14:05:02,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:05:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:05:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 14:05:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:05:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 14:05:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 14:05:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 14:05:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2024-11-20 14:05:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2024-11-20 14:05:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2024-11-20 14:05:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2024-11-20 14:05:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 14:05:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 14:05:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 14:05:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:05:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:05:02,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:05:02,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:05:03,428 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-20 14:05:03,428 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:05:03,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:05:03,452 INFO L316 CfgBuilder]: Removed 38 assume(true) statements. [2024-11-20 14:05:03,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:05:03 BoogieIcfgContainer [2024-11-20 14:05:03,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:05:03,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:05:03,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:05:03,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:05:03,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:05:02" (1/3) ... [2024-11-20 14:05:03,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7bf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:05:03, skipping insertion in model container [2024-11-20 14:05:03,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:05:02" (2/3) ... [2024-11-20 14:05:03,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7bf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:05:03, skipping insertion in model container [2024-11-20 14:05:03,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:05:03" (3/3) ... [2024-11-20 14:05:03,467 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2024-11-20 14:05:03,483 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:05:03,483 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 14:05:03,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:05:03,522 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=PETRI_NET, 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;@7dc2507, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:05:03,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 14:05:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 100 states have (on average 1.7) internal successors, (170), 121 states have internal predecessors, (170), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 14:05:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-20 14:05:03,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:05:03,533 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:05:03,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:05:03,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:05:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1891008900, now seen corresponding path program 1 times [2024-11-20 14:05:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:05:03,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539997140] [2024-11-20 14:05:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:03,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:05:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:03,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:03,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 14:05:03,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:05:03,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539997140] [2024-11-20 14:05:03,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539997140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:05:03,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:05:03,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:05:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893748405] [2024-11-20 14:05:03,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:05:03,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:05:03,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:05:03,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:05:03,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:05:03,936 INFO L87 Difference]: Start difference. First operand has 133 states, 100 states have (on average 1.7) internal successors, (170), 121 states have internal predecessors, (170), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 14:05:04,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:05:04,142 INFO L93 Difference]: Finished difference Result 130 states and 160 transitions. [2024-11-20 14:05:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:05:04,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-20 14:05:04,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:05:04,151 INFO L225 Difference]: With dead ends: 130 [2024-11-20 14:05:04,152 INFO L226 Difference]: Without dead ends: 128 [2024-11-20 14:05:04,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:05:04,157 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 40 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:05:04,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 182 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 14:05:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-20 14:05:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-20 14:05:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 116 states have internal predecessors, (124), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 14:05:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2024-11-20 14:05:04,190 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 39 [2024-11-20 14:05:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:05:04,191 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2024-11-20 14:05:04,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 14:05:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2024-11-20 14:05:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 14:05:04,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:05:04,193 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:05:04,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:05:04,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:05:04,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:05:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1914072036, now seen corresponding path program 1 times [2024-11-20 14:05:04,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:05:04,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556502671] [2024-11-20 14:05:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:05:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:04,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:04,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:05,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 14:05:05,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:05:05,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556502671] [2024-11-20 14:05:05,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556502671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:05:05,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27977463] [2024-11-20 14:05:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:05,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:05:05,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:05:05,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:05:05,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 14:05:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:05,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 14:05:05,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:05:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 14:05:05,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:05:05,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27977463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:05:05,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 14:05:05,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-20 14:05:05,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915641834] [2024-11-20 14:05:05,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:05:05,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:05:05,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:05:05,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:05:05,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-20 14:05:05,357 INFO L87 Difference]: Start difference. First operand 128 states and 158 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 14:05:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:05:05,429 INFO L93 Difference]: Finished difference Result 141 states and 176 transitions. [2024-11-20 14:05:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:05:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-20 14:05:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:05:05,432 INFO L225 Difference]: With dead ends: 141 [2024-11-20 14:05:05,432 INFO L226 Difference]: Without dead ends: 141 [2024-11-20 14:05:05,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-20 14:05:05,434 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 14 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:05:05,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 590 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:05:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-20 14:05:05,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-20 14:05:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 105 states have (on average 1.2666666666666666) internal successors, (133), 124 states have internal predecessors, (133), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 14:05:05,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2024-11-20 14:05:05,450 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 40 [2024-11-20 14:05:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:05:05,450 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2024-11-20 14:05:05,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 14:05:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2024-11-20 14:05:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 14:05:05,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:05:05,454 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:05:05,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 14:05:05,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:05:05,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:05:05,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:05:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1051788348, now seen corresponding path program 1 times [2024-11-20 14:05:05,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:05:05,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51247544] [2024-11-20 14:05:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:05,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:05:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:06,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:06,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:06,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 14:05:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 11 proven. 50 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-20 14:05:07,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:05:07,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51247544] [2024-11-20 14:05:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51247544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:05:07,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282019408] [2024-11-20 14:05:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:07,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:05:07,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:05:07,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:05:07,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 14:05:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:08,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-20 14:05:08,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:05:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-20 14:05:08,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:05:08,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282019408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:05:08,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 14:05:08,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 11 [2024-11-20 14:05:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341632552] [2024-11-20 14:05:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:05:08,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 14:05:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:05:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 14:05:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 14:05:08,136 INFO L87 Difference]: Start difference. First operand 141 states and 173 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:05:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:05:08,416 INFO L93 Difference]: Finished difference Result 145 states and 178 transitions. [2024-11-20 14:05:08,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 14:05:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2024-11-20 14:05:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:05:08,418 INFO L225 Difference]: With dead ends: 145 [2024-11-20 14:05:08,419 INFO L226 Difference]: Without dead ends: 145 [2024-11-20 14:05:08,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:05:08,420 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 49 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:05:08,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 618 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 14:05:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-20 14:05:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-20 14:05:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 128 states have internal predecessors, (136), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (15), 11 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-20 14:05:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 178 transitions. [2024-11-20 14:05:08,437 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 178 transitions. Word has length 112 [2024-11-20 14:05:08,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:05:08,438 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 178 transitions. [2024-11-20 14:05:08,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:05:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 178 transitions. [2024-11-20 14:05:08,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 14:05:08,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:05:08,440 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:05:08,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 14:05:08,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 14:05:08,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:05:08,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:05:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2031458300, now seen corresponding path program 1 times [2024-11-20 14:05:08,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:05:08,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313749445] [2024-11-20 14:05:08,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:08,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:05:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 14:05:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-20 14:05:10,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:05:10,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313749445] [2024-11-20 14:05:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313749445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:05:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031315717] [2024-11-20 14:05:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:10,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:05:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:05:10,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:05:10,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 14:05:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:10,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-20 14:05:10,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:05:10,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 14:05:10,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-20 14:05:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-20 14:05:10,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:05:11,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-20 14:05:11,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-20 14:05:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-20 14:05:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031315717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:05:11,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:05:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 23 [2024-11-20 14:05:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250150623] [2024-11-20 14:05:11,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:05:11,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 14:05:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:05:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 14:05:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2024-11-20 14:05:11,168 INFO L87 Difference]: Start difference. First operand 145 states and 178 transitions. Second operand has 23 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 19 states have internal predecessors, (70), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-20 14:05:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:05:12,195 INFO L93 Difference]: Finished difference Result 223 states and 273 transitions. [2024-11-20 14:05:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 14:05:12,196 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 19 states have internal predecessors, (70), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 112 [2024-11-20 14:05:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:05:12,197 INFO L225 Difference]: With dead ends: 223 [2024-11-20 14:05:12,197 INFO L226 Difference]: Without dead ends: 217 [2024-11-20 14:05:12,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=1568, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 14:05:12,198 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 152 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 14:05:12,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2048 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 14:05:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-20 14:05:12,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 183. [2024-11-20 14:05:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 160 states have internal predecessors, (175), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (19), 13 states have call predecessors, (19), 15 states have call successors, (19) [2024-11-20 14:05:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2024-11-20 14:05:12,206 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 112 [2024-11-20 14:05:12,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:05:12,207 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2024-11-20 14:05:12,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 19 states have internal predecessors, (70), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-20 14:05:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2024-11-20 14:05:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 14:05:12,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:05:12,208 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:05:12,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 14:05:12,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:05:12,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:05:12,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:05:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1581215540, now seen corresponding path program 1 times [2024-11-20 14:05:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:05:12,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759792572] [2024-11-20 14:05:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:05:12,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:05:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:15,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:16,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:17,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:17,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:17,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:20,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:05:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:20,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 14:05:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:20,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 14:05:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:21,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:05:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:22,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 14:05:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:05:23,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-20 14:05:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat