./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 803cd42f 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 ../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.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:08:10,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:08:11,033 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-22 18:08:11,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:08:11,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:08:11,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:08:11,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:08:11,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:08:11,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:08:11,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:08:11,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:08:11,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:08:11,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:08:11,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:08:11,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:08:11,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:08:11,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:08:11,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:08:11,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:08:11,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:08:11,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:08:11,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:08:11,065 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:08:11,065 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:08:11,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:08:11,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:08:11,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:08:11,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:08:11,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:08:11,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:08:11,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:08:11,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:08:11,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:08:11,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:08:11,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:08:11,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:08:11,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:08:11,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:08:11,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:08:11,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:08:11,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2024-11-22 18:08:11,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:08:11,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:08:11,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:08:11,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:08:11,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:08:11,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-22 18:08:12,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:08:12,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:08:12,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-22 18:08:12,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69558578a/a0d7f5d9913c4f64825f44848109fb8d/FLAGcd7b14801 [2024-11-22 18:08:12,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69558578a/a0d7f5d9913c4f64825f44848109fb8d [2024-11-22 18:08:12,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:08:12,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:08:12,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:08:12,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:08:12,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:08:12,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:08:12" (1/1) ... [2024-11-22 18:08:12,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4629843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:12, skipping insertion in model container [2024-11-22 18:08:12,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:08:12" (1/1) ... [2024-11-22 18:08:12,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:08:13,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:08:13,430 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:08:13,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:08:13,513 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:08:13,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13 WrapperNode [2024-11-22 18:08:13,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:08:13,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:08:13,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:08:13,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:08:13,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,571 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 236 [2024-11-22 18:08:13,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:08:13,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:08:13,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:08:13,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:08:13,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,629 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]. [2024-11-22 18:08:13,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:08:13,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:08:13,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:08:13,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:08:13,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (1/1) ... [2024-11-22 18:08:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:08:13,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:13,709 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) [2024-11-22 18:08:13,714 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 [2024-11-22 18:08:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-22 18:08:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-22 18:08:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2024-11-22 18:08:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2024-11-22 18:08:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:08:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:08:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2024-11-22 18:08:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2024-11-22 18:08:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:08:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 18:08:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 18:08:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 18:08:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 18:08:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 18:08:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2024-11-22 18:08:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2024-11-22 18:08:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2024-11-22 18:08:13,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2024-11-22 18:08:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 18:08:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 18:08:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 18:08:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:08:13,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:08:13,868 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:08:13,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:08:14,154 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-22 18:08:14,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:08:14,165 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:08:14,166 INFO L316 CfgBuilder]: Removed 38 assume(true) statements. [2024-11-22 18:08:14,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:08:14 BoogieIcfgContainer [2024-11-22 18:08:14,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:08:14,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:08:14,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:08:14,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:08:14,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:08:12" (1/3) ... [2024-11-22 18:08:14,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15777109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:08:14, skipping insertion in model container [2024-11-22 18:08:14,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:08:13" (2/3) ... [2024-11-22 18:08:14,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15777109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:08:14, skipping insertion in model container [2024-11-22 18:08:14,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:08:14" (3/3) ... [2024-11-22 18:08:14,172 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2024-11-22 18:08:14,185 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:08:14,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 18:08:14,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:08:14,224 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;@55084508, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:08:14,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 18:08:14,228 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) [2024-11-22 18:08:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 18:08:14,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:08:14,235 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] [2024-11-22 18:08:14,236 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:08:14,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:08:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1891008900, now seen corresponding path program 1 times [2024-11-22 18:08:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:08:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626657236] [2024-11-22 18:08:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:08:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 18:08:14,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:08:14,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626657236] [2024-11-22 18:08:14,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626657236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:08:14,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461875127] [2024-11-22 18:08:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:14,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:14,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:14,451 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) [2024-11-22 18:08:14,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:08:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:14,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 18:08:14,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:08:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 18:08:14,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:08:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461875127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:08:14,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:08:14,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 18:08:14,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175346155] [2024-11-22 18:08:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:08:14,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 18:08:14,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:08:14,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 18:08:14,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 18:08:14,611 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-11-22 18:08:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:08:14,628 INFO L93 Difference]: Finished difference Result 130 states and 160 transitions. [2024-11-22 18:08:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 18:08:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 [2024-11-22 18:08:14,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:08:14,635 INFO L225 Difference]: With dead ends: 130 [2024-11-22 18:08:14,635 INFO L226 Difference]: Without dead ends: 128 [2024-11-22 18:08:14,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 18:08:14,638 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:08:14,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:08:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-22 18:08:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-22 18:08:14,665 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) [2024-11-22 18:08:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2024-11-22 18:08:14,667 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 39 [2024-11-22 18:08:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:08:14,668 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2024-11-22 18:08:14,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-11-22 18:08:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2024-11-22 18:08:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 18:08:14,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:08:14,670 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] [2024-11-22 18:08:14,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:08:14,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 18:08:14,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:08:14,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:08:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1914072036, now seen corresponding path program 1 times [2024-11-22 18:08:14,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:08:14,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543573283] [2024-11-22 18:08:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:14,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:08:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:08:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:08:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543573283] [2024-11-22 18:08:15,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543573283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:08:15,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479994318] [2024-11-22 18:08:15,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:15,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:15,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:15,529 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) [2024-11-22 18:08:15,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:08:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:15,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 18:08:15,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:08:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 18:08:15,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:08:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479994318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:08:15,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:08:15,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-22 18:08:15,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719319351] [2024-11-22 18:08:15,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:08:15,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:08:15,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:08:15,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:08:15,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:08:15,864 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) [2024-11-22 18:08:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:08:15,946 INFO L93 Difference]: Finished difference Result 141 states and 176 transitions. [2024-11-22 18:08:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:08:15,947 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 [2024-11-22 18:08:15,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:08:15,948 INFO L225 Difference]: With dead ends: 141 [2024-11-22 18:08:15,948 INFO L226 Difference]: Without dead ends: 141 [2024-11-22 18:08:15,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:08:15,950 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 [2024-11-22 18:08:15,950 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] [2024-11-22 18:08:15,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-22 18:08:15,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-22 18:08:15,959 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) [2024-11-22 18:08:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2024-11-22 18:08:15,961 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 40 [2024-11-22 18:08:15,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:08:15,962 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2024-11-22 18:08:15,962 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) [2024-11-22 18:08:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2024-11-22 18:08:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 18:08:15,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:08:15,964 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] [2024-11-22 18:08:15,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:08:16,165 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,SelfDestructingSolverStorable1 [2024-11-22 18:08:16,166 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:08:16,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:08:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1051788348, now seen corresponding path program 1 times [2024-11-22 18:08:16,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:08:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769745536] [2024-11-22 18:08:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:16,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:08:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 18:08:16,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:08:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769745536] [2024-11-22 18:08:16,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769745536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:08:16,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9081102] [2024-11-22 18:08:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:16,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:16,886 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) [2024-11-22 18:08:16,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:08:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:17,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 18:08:17,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:08:17,250 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 [2024-11-22 18:08:17,296 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 [2024-11-22 18:08:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 18:08:17,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:08:17,678 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 [2024-11-22 18:08:17,689 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 [2024-11-22 18:08:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 18:08:17,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9081102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:08:17,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:08:17,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 22 [2024-11-22 18:08:17,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508593361] [2024-11-22 18:08:17,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:08:17,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 18:08:17,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:08:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 18:08:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2024-11-22 18:08:17,813 INFO L87 Difference]: Start difference. First operand 141 states and 173 transitions. Second operand has 22 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-22 18:08:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:08:18,910 INFO L93 Difference]: Finished difference Result 218 states and 266 transitions. [2024-11-22 18:08:18,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 18:08:18,912 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 112 [2024-11-22 18:08:18,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:08:18,914 INFO L225 Difference]: With dead ends: 218 [2024-11-22 18:08:18,914 INFO L226 Difference]: Without dead ends: 213 [2024-11-22 18:08:18,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1407, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 18:08:18,915 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 173 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 18:08:18,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1874 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 18:08:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-22 18:08:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 174. [2024-11-22 18:08:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 153 states have internal predecessors, (168), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (16), 12 states have call predecessors, (16), 14 states have call successors, (16) [2024-11-22 18:08:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2024-11-22 18:08:18,948 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 112 [2024-11-22 18:08:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:08:18,948 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2024-11-22 18:08:18,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-22 18:08:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2024-11-22 18:08:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 18:08:18,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:08:18,958 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, 1, 1] [2024-11-22 18:08:18,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 18:08:19,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:19,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:08:19,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:08:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1540540790, now seen corresponding path program 1 times [2024-11-22 18:08:19,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:08:19,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369228667] [2024-11-22 18:08:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:08:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-22 18:08:19,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:08:19,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369228667] [2024-11-22 18:08:19,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369228667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:08:19,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604736403] [2024-11-22 18:08:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:19,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:19,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:19,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:08:19,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 18:08:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:20,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-22 18:08:20,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:08:20,185 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 [2024-11-22 18:08:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-22 18:08:20,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:08:20,738 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 [2024-11-22 18:08:20,745 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 [2024-11-22 18:08:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 29 proven. 25 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-22 18:08:20,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604736403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:08:20,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:08:20,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 23 [2024-11-22 18:08:20,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838423405] [2024-11-22 18:08:20,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:08:20,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 18:08:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:08:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 18:08:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-22 18:08:20,795 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 23 states, 21 states have (on average 3.0) internal successors, (63), 18 states have internal predecessors, (63), 9 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-22 18:08:21,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:08:21,501 INFO L93 Difference]: Finished difference Result 186 states and 226 transitions. [2024-11-22 18:08:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 18:08:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.0) internal successors, (63), 18 states have internal predecessors, (63), 9 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 115 [2024-11-22 18:08:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:08:21,503 INFO L225 Difference]: With dead ends: 186 [2024-11-22 18:08:21,503 INFO L226 Difference]: Without dead ends: 186 [2024-11-22 18:08:21,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=1250, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 18:08:21,504 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 61 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:08:21,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1407 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 18:08:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-22 18:08:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2024-11-22 18:08:21,533 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, (18), 13 states have call predecessors, (18), 15 states have call successors, (18) [2024-11-22 18:08:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 222 transitions. [2024-11-22 18:08:21,535 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 222 transitions. Word has length 115 [2024-11-22 18:08:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:08:21,535 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 222 transitions. [2024-11-22 18:08:21,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.0) internal successors, (63), 18 states have internal predecessors, (63), 9 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-22 18:08:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 222 transitions. [2024-11-22 18:08:21,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 18:08:21,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:08:21,541 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] [2024-11-22 18:08:21,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 18:08:21,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:21,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:08:21,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:08:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1581215540, now seen corresponding path program 1 times [2024-11-22 18:08:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:08:21,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522588709] [2024-11-22 18:08:21,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:08:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 18:08:28,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:08:28,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522588709] [2024-11-22 18:08:28,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522588709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:08:28,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512743392] [2024-11-22 18:08:28,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:08:28,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:08:28,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:08:28,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:08:28,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 18:08:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:08:29,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-22 18:08:29,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:08:29,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-22 18:08:29,389 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 [2024-11-22 18:08:29,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:08:29,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:08:29,910 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-11-22 18:08:29,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2024-11-22 18:08:30,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-22 18:08:30,711 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 35 treesize of output 19 [2024-11-22 18:08:30,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-22 18:08:44,065 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 71 treesize of output 43 [2024-11-22 18:08:45,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:08:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:08:45,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:08:45,180 INFO L349 Elim1Store]: treesize reduction 60, result has 28.6 percent of original size [2024-11-22 18:08:45,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 46 [2024-11-22 18:08:45,307 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2024-11-22 18:08:45,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 26 [2024-11-22 18:08:45,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-11-22 18:08:45,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-11-22 18:08:45,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-22 18:08:45,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2024-11-22 18:08:46,045 INFO L349 Elim1Store]: treesize reduction 77, result has 31.3 percent of original size [2024-11-22 18:08:46,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 86 [2024-11-22 18:08:47,182 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 79 treesize of output 63 [2024-11-22 18:08:47,193 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 75 treesize of output 63 [2024-11-22 18:08:47,892 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 83 treesize of output 59 [2024-11-22 18:08:47,901 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 70 treesize of output 46 [2024-11-22 18:08:51,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:08:51,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 42 [2024-11-22 18:08:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 18:08:51,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:08:59,208 INFO L349 Elim1Store]: treesize reduction 37, result has 42.2 percent of original size [2024-11-22 18:08:59,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 41 [2024-11-22 18:08:59,231 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-22 18:08:59,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 89 [2024-11-22 18:08:59,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 56 treesize of output 52 [2024-11-22 18:08:59,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 52 treesize of output 50 [2024-11-22 18:08:59,309 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-22 18:08:59,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2024-11-22 18:09:02,391 INFO L349 Elim1Store]: treesize reduction 279, result has 42.9 percent of original size [2024-11-22 18:09:02,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 2592 treesize of output 2072 [2024-11-22 18:09:02,519 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:09:02,522 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:09:02,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:09:02,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1917 treesize of output 1941 [2024-11-22 18:09:02,648 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 2276 treesize of output 2152 [2024-11-22 18:09:02,697 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 2618 treesize of output 2454 [2024-11-22 18:09:02,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:09:02,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1780 treesize of output 1781 [2024-11-22 18:09:02,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:09:02,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1772 treesize of output 1765 [2024-11-22 18:09:02,993 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-22 18:09:02,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2024-11-22 18:09:07,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-22 18:09:07,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:09:07,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 178 [2024-11-22 18:09:08,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 20 [2024-11-22 18:09:08,873 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 7 treesize of output 3 [2024-11-22 18:09:09,345 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 77 treesize of output 73 [2024-11-22 18:09:09,372 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 58 treesize of output 54 [2024-11-22 18:09:09,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:09:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:09:12,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512743392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:09:12,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 18:09:12,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41] total 73 [2024-11-22 18:09:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644739194] [2024-11-22 18:09:12,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 18:09:12,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-22 18:09:12,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:09:12,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-22 18:09:12,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=5882, Unknown=8, NotChecked=0, Total=6162 [2024-11-22 18:09:12,367 INFO L87 Difference]: Start difference. First operand 183 states and 222 transitions. Second operand has 73 states, 63 states have (on average 1.9841269841269842) internal successors, (125), 60 states have internal predecessors, (125), 17 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 20 states have call predecessors, (23), 14 states have call successors, (23) [2024-11-22 18:09:24,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:09:48,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:09:48,357 INFO L93 Difference]: Finished difference Result 268 states and 330 transitions. [2024-11-22 18:09:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-22 18:09:48,358 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 63 states have (on average 1.9841269841269842) internal successors, (125), 60 states have internal predecessors, (125), 17 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 20 states have call predecessors, (23), 14 states have call successors, (23) Word has length 115 [2024-11-22 18:09:48,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:09:48,361 INFO L225 Difference]: With dead ends: 268 [2024-11-22 18:09:48,361 INFO L226 Difference]: Without dead ends: 268 [2024-11-22 18:09:48,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2474 ImplicationChecksByTransitivity, 40.9s TimeCoverageRelationStatistics Valid=581, Invalid=11181, Unknown=10, NotChecked=0, Total=11772 [2024-11-22 18:09:48,365 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 293 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 129 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:09:48,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 2512 Invalid, 4528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [129 Valid, 4396 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2024-11-22 18:09:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-22 18:09:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 227. [2024-11-22 18:09:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 178 states have (on average 1.2303370786516854) internal successors, (219), 197 states have internal predecessors, (219), 30 states have call successors, (30), 12 states have call predecessors, (30), 17 states have return successors, (27), 19 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-22 18:09:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 276 transitions. [2024-11-22 18:09:48,383 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 276 transitions. Word has length 115 [2024-11-22 18:09:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:09:48,384 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 276 transitions. [2024-11-22 18:09:48,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 63 states have (on average 1.9841269841269842) internal successors, (125), 60 states have internal predecessors, (125), 17 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 20 states have call predecessors, (23), 14 states have call successors, (23) [2024-11-22 18:09:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 276 transitions. [2024-11-22 18:09:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 18:09:48,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:09:48,386 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:09:48,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 18:09:48,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:09:48,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:09:48,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:09:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1861995615, now seen corresponding path program 1 times [2024-11-22 18:09:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:09:48,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648944577] [2024-11-22 18:09:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:09:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:09:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat