./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:47:56,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:47:57,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-10 14:47:57,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:47:57,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:47:57,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:47:57,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:47:57,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:47:57,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 14:47:57,079 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 14:47:57,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:47:57,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:47:57,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:47:57,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:47:57,082 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:47:57,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:47:57,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:47:57,082 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:47:57,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:47:57,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:47:57,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:47:57,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:47:57,085 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 14:47:57,086 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 14:47:57,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:47:57,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:47:57,086 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:47:57,087 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:47:57,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:47:57,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:47:57,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:47:57,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:47:57,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:47:57,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:47:57,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:47:57,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2024-11-10 14:47:57,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:47:57,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:47:57,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:47:57,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:47:57,323 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:47:57,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-10 14:47:58,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:47:58,872 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:47:58,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-10 14:47:58,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b47e7db6/7dad167917f148c3a23e16007058652a/FLAG7652a8520 [2024-11-10 14:47:58,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b47e7db6/7dad167917f148c3a23e16007058652a [2024-11-10 14:47:58,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:47:58,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:47:58,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:47:58,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:47:58,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:47:58,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:47:58" (1/1) ... [2024-11-10 14:47:58,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c85a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:58, skipping insertion in model container [2024-11-10 14:47:58,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:47:58" (1/1) ... [2024-11-10 14:47:58,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:47:59,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:47:59,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:47:59,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:47:59,344 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:47:59,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59 WrapperNode [2024-11-10 14:47:59,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:47:59,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:47:59,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:47:59,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:47:59,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,390 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 220 [2024-11-10 14:47:59,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:47:59,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:47:59,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:47:59,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:47:59,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,438 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [2, 40, 6]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 13 writes are split as follows [0, 11, 2]. [2024-11-10 14:47:59,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,447 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:47:59,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:47:59,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:47:59,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:47:59,454 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (1/1) ... [2024-11-10 14:47:59,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:47:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:47:59,483 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) [2024-11-10 14:47:59,484 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 [2024-11-10 14:47:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-10 14:47:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-10 14:47:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2024-11-10 14:47:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2024-11-10 14:47:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:47:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:47:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2024-11-10 14:47:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-10 14:47:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-10 14:47:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 14:47:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 14:47:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 14:47:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:47:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2024-11-10 14:47:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2024-11-10 14:47:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 14:47:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 14:47:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 14:47:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:47:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:47:59,636 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:47:59,637 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:47:59,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L597: havoc #t~ret12.base, #t~ret12.offset; [2024-11-10 14:47:59,708 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc #t~mem11.base, #t~mem11.offset;call ULTIMATE.dealloc(~#dll~0.base, ~#dll~0.offset);havoc ~#dll~0.base, ~#dll~0.offset; [2024-11-10 14:47:59,895 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc dll_create_master_#t~ret21#1.base, dll_create_master_#t~ret21#1.offset; [2024-11-10 14:47:59,920 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-10 14:47:59,920 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:47:59,938 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:47:59,938 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:47:59,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:47:59 BoogieIcfgContainer [2024-11-10 14:47:59,938 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:47:59,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:47:59,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:47:59,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:47:59,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:47:58" (1/3) ... [2024-11-10 14:47:59,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b4f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:47:59, skipping insertion in model container [2024-11-10 14:47:59,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:47:59" (2/3) ... [2024-11-10 14:47:59,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b4f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:47:59, skipping insertion in model container [2024-11-10 14:47:59,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:47:59" (3/3) ... [2024-11-10 14:47:59,950 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2024-11-10 14:47:59,981 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:47:59,985 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 14:48:00,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:48:00,061 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;@7ec71446, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:48:00,061 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 14:48:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 112 states have (on average 1.625) internal successors, (182), 133 states have internal predecessors, (182), 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) [2024-11-10 14:48:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-10 14:48:00,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:48:00,075 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] [2024-11-10 14:48:00,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:48:00,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:48:00,080 INFO L85 PathProgramCache]: Analyzing trace with hash 600516782, now seen corresponding path program 1 times [2024-11-10 14:48:00,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:48:00,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219676393] [2024-11-10 14:48:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:48:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:00,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:00,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 14:48:00,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:48:00,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219676393] [2024-11-10 14:48:00,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219676393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:48:00,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:48:00,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:48:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930950044] [2024-11-10 14:48:00,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:48:00,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:48:00,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:48:00,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:48:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:48:00,513 INFO L87 Difference]: Start difference. First operand has 145 states, 112 states have (on average 1.625) internal successors, (182), 133 states have internal predecessors, (182), 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 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2024-11-10 14:48:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:48:00,715 INFO L93 Difference]: Finished difference Result 142 states and 172 transitions. [2024-11-10 14:48:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:48:00,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 40 [2024-11-10 14:48:00,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:48:00,726 INFO L225 Difference]: With dead ends: 142 [2024-11-10 14:48:00,726 INFO L226 Difference]: Without dead ends: 139 [2024-11-10 14:48:00,728 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 [2024-11-10 14:48:00,730 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 42 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 14:48:00,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 201 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 14:48:00,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-10 14:48:00,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-10 14:48:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.25) internal successors, (135), 127 states have internal predecessors, (135), 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) [2024-11-10 14:48:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 169 transitions. [2024-11-10 14:48:00,771 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 169 transitions. Word has length 40 [2024-11-10 14:48:00,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:48:00,771 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 169 transitions. [2024-11-10 14:48:00,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2024-11-10 14:48:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 169 transitions. [2024-11-10 14:48:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-10 14:48:00,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:48:00,773 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, 1] [2024-11-10 14:48:00,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:48:00,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:48:00,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:48:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1258389289, now seen corresponding path program 1 times [2024-11-10 14:48:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:48:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003151560] [2024-11-10 14:48:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:00,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:48:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:01,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:01,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:01,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 14:48:01,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:48:01,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003151560] [2024-11-10 14:48:01,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003151560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:48:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652635227] [2024-11-10 14:48:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:01,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:48:01,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:48:01,611 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) [2024-11-10 14:48:01,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:48:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:01,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:48:01,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:48:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:48:01,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:48:01,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652635227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:48:01,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:48:01,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-10 14:48:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551963359] [2024-11-10 14:48:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:48:01,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:48:01,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:48:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:48:01,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-10 14:48:01,893 INFO L87 Difference]: Start difference. First operand 139 states and 169 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-10 14:48:01,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:48:01,974 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2024-11-10 14:48:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:48:01,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 41 [2024-11-10 14:48:01,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:48:01,977 INFO L225 Difference]: With dead ends: 152 [2024-11-10 14:48:01,977 INFO L226 Difference]: Without dead ends: 152 [2024-11-10 14:48:01,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:48:01,978 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:48:01,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 634 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:48:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-10 14:48:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-10 14:48:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 135 states have internal predecessors, (144), 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) [2024-11-10 14:48:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 184 transitions. [2024-11-10 14:48:01,991 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 184 transitions. Word has length 41 [2024-11-10 14:48:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:48:01,991 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 184 transitions. [2024-11-10 14:48:01,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-10 14:48:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 184 transitions. [2024-11-10 14:48:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-10 14:48:01,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:48:01,994 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, 1] [2024-11-10 14:48:02,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:48:02,194 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 [2024-11-10 14:48:02,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:48:02,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:48:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1671282441, now seen corresponding path program 1 times [2024-11-10 14:48:02,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:48:02,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158724312] [2024-11-10 14:48:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:48:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:02,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 14:48:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-10 14:48:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:48:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158724312] [2024-11-10 14:48:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158724312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:48:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49929424] [2024-11-10 14:48:03,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:48:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:48:03,812 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) [2024-11-10 14:48:03,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:48:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:04,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-10 14:48:04,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:48:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 14:48:04,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:48:04,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49929424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:48:04,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:48:04,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 11 [2024-11-10 14:48:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053332010] [2024-11-10 14:48:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:48:04,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:48:04,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:48:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:48:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:48:04,184 INFO L87 Difference]: Start difference. First operand 152 states and 184 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2024-11-10 14:48:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:48:04,437 INFO L93 Difference]: Finished difference Result 156 states and 189 transitions. [2024-11-10 14:48:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:48:04,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 113 [2024-11-10 14:48:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:48:04,439 INFO L225 Difference]: With dead ends: 156 [2024-11-10 14:48:04,439 INFO L226 Difference]: Without dead ends: 156 [2024-11-10 14:48:04,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-10 14:48:04,440 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 54 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 14:48:04,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 598 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 14:48:04,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-10 14:48:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-10 14:48:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 139 states have internal predecessors, (147), 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) [2024-11-10 14:48:04,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 189 transitions. [2024-11-10 14:48:04,452 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 189 transitions. Word has length 113 [2024-11-10 14:48:04,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:48:04,452 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 189 transitions. [2024-11-10 14:48:04,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2024-11-10 14:48:04,452 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 189 transitions. [2024-11-10 14:48:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-10 14:48:04,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:48:04,454 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, 1] [2024-11-10 14:48:04,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:48:04,658 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 [2024-11-10 14:48:04,659 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:48:04,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:48:04,660 INFO L85 PathProgramCache]: Analyzing trace with hash 628699927, now seen corresponding path program 1 times [2024-11-10 14:48:04,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:48:04,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124725919] [2024-11-10 14:48:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:04,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:48:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:05,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:05,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:05,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 14:48:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-10 14:48:06,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:48:06,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124725919] [2024-11-10 14:48:06,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124725919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:48:06,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727778200] [2024-11-10 14:48:06,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:06,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:48:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:48:06,293 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) [2024-11-10 14:48:06,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:48:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:06,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-10 14:48:06,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:48:06,806 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 [2024-11-10 14:48:06,863 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 [2024-11-10 14:48:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-10 14:48:06,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:48:07,221 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 [2024-11-10 14:48:07,230 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 [2024-11-10 14:48:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 14:48:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727778200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:48:07,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:48:07,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 15] total 25 [2024-11-10 14:48:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645654874] [2024-11-10 14:48:07,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:48:07,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-10 14:48:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:48:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-10 14:48:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2024-11-10 14:48:07,345 INFO L87 Difference]: Start difference. First operand 156 states and 189 transitions. Second operand has 25 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 10 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (16), 8 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-10 14:48:08,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:48:08,503 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2024-11-10 14:48:08,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-10 14:48:08,504 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 10 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (16), 8 states have call predecessors, (16), 9 states have call successors, (16) Word has length 113 [2024-11-10 14:48:08,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:48:08,505 INFO L225 Difference]: With dead ends: 244 [2024-11-10 14:48:08,505 INFO L226 Difference]: Without dead ends: 231 [2024-11-10 14:48:08,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=1786, Unknown=0, NotChecked=0, Total=1980 [2024-11-10 14:48:08,507 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 185 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 14:48:08,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 2307 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 14:48:08,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-10 14:48:08,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 197. [2024-11-10 14:48:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.2129032258064516) internal successors, (188), 174 states have internal predecessors, (188), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (17), 13 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-10 14:48:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 234 transitions. [2024-11-10 14:48:08,516 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 234 transitions. Word has length 113 [2024-11-10 14:48:08,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:48:08,516 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 234 transitions. [2024-11-10 14:48:08,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 10 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (16), 8 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-10 14:48:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 234 transitions. [2024-11-10 14:48:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 14:48:08,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:48:08,518 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, 1] [2024-11-10 14:48:08,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:48:08,719 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 [2024-11-10 14:48:08,720 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:48:08,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:48:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1416389551, now seen corresponding path program 1 times [2024-11-10 14:48:08,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:48:08,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419997265] [2024-11-10 14:48:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:48:08,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:48:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:11,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:13,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 14:48:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 14:48:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:14,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 14:48:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:15,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 14:48:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:16,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-10 14:48:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:48:17,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-10 14:48:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat