./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/AutomizerReach.xml -i ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 19:30:12,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 19:30:12,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 19:30:12,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 19:30:12,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 19:30:12,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 19:30:12,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 19:30:12,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 19:30:12,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 19:30:12,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 19:30:12,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 19:30:12,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 19:30:12,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 19:30:12,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 19:30:12,649 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 19:30:12,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 19:30:12,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 19:30:12,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 19:30:12,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 19:30:12,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 19:30:12,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 19:30:12,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 19:30:12,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 19:30:12,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 19:30:12,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 19:30:12,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:30:12,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 19:30:12,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 19:30:12,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 19:30:12,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 19:30:12,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 19:30:12,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2024-11-11 19:30:12,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 19:30:12,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 19:30:12,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 19:30:12,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 19:30:12,860 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 19:30:12,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-11 19:30:14,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 19:30:14,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 19:30:14,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-11 19:30:14,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a9d9835/5c4ee7183c994dfeb820e8a8343c6489/FLAG77299a355 [2024-11-11 19:30:14,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a9d9835/5c4ee7183c994dfeb820e8a8343c6489 [2024-11-11 19:30:14,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 19:30:14,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 19:30:14,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 19:30:14,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 19:30:14,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 19:30:14,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:30:14" (1/1) ... [2024-11-11 19:30:14,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60306e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:14, skipping insertion in model container [2024-11-11 19:30:14,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:30:14" (1/1) ... [2024-11-11 19:30:14,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 19:30:15,181 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i[22634,22647] [2024-11-11 19:30:15,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:30:15,236 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 19:30:15,263 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i[22634,22647] [2024-11-11 19:30:15,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:30:15,305 INFO L204 MainTranslator]: Completed translation [2024-11-11 19:30:15,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15 WrapperNode [2024-11-11 19:30:15,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 19:30:15,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 19:30:15,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 19:30:15,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 19:30:15,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,358 INFO L138 Inliner]: procedures = 140, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 231 [2024-11-11 19:30:15,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 19:30:15,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 19:30:15,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 19:30:15,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 19:30:15,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,405 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [2, 6, 40]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 13 writes are split as follows [0, 2, 11]. [2024-11-11 19:30:15,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 19:30:15,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 19:30:15,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 19:30:15,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 19:30:15,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (1/1) ... [2024-11-11 19:30:15,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:30:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:30:15,462 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) [2024-11-11 19:30:15,475 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 [2024-11-11 19:30:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-11 19:30:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-11 19:30:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2024-11-11 19:30:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2024-11-11 19:30:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-11 19:30:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 19:30:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2024-11-11 19:30:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-11 19:30:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 19:30:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-11 19:30:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2024-11-11 19:30:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2024-11-11 19:30:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 19:30:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 19:30:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 19:30:15,694 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 19:30:15,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 19:30:16,308 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2024-11-11 19:30:16,312 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 19:30:16,326 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 19:30:16,328 INFO L316 CfgBuilder]: Removed 38 assume(true) statements. [2024-11-11 19:30:16,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:30:16 BoogieIcfgContainer [2024-11-11 19:30:16,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 19:30:16,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 19:30:16,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 19:30:16,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 19:30:16,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 07:30:14" (1/3) ... [2024-11-11 19:30:16,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278a80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:30:16, skipping insertion in model container [2024-11-11 19:30:16,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:30:15" (2/3) ... [2024-11-11 19:30:16,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278a80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:30:16, skipping insertion in model container [2024-11-11 19:30:16,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:30:16" (3/3) ... [2024-11-11 19:30:16,339 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2024-11-11 19:30:16,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 19:30:16,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 19:30:16,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 19:30:16,456 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=LoopHeads, 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;@50e6d551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 19:30:16,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 19:30:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 97 states have (on average 1.7010309278350515) internal successors, (165), 117 states have internal predecessors, (165), 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) [2024-11-11 19:30:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-11 19:30:16,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:30:16,482 INFO L218 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] [2024-11-11 19:30:16,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:30:16,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:30:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2003566147, now seen corresponding path program 1 times [2024-11-11 19:30:16,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:30:16,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950762115] [2024-11-11 19:30:16,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:16,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:30:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:16,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:17,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:17,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:30:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 19:30:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:30:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950762115] [2024-11-11 19:30:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950762115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 19:30:17,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 19:30:17,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 19:30:17,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640344148] [2024-11-11 19:30:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 19:30:17,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 19:30:17,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:30:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 19:30:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 19:30:17,266 INFO L87 Difference]: Start difference. First operand has 129 states, 97 states have (on average 1.7010309278350515) internal successors, (165), 117 states have internal predecessors, (165), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-11 19:30:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:30:17,557 INFO L93 Difference]: Finished difference Result 253 states and 431 transitions. [2024-11-11 19:30:17,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 19:30:17,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 37 [2024-11-11 19:30:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:30:17,573 INFO L225 Difference]: With dead ends: 253 [2024-11-11 19:30:17,574 INFO L226 Difference]: Without dead ends: 121 [2024-11-11 19:30:17,583 INFO L434 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 [2024-11-11 19:30:17,585 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 19:30:17,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 183 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 19:30:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-11 19:30:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-11 19:30:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 109 states have internal predecessors, (116), 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) [2024-11-11 19:30:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2024-11-11 19:30:17,633 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 37 [2024-11-11 19:30:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:30:17,634 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2024-11-11 19:30:17,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-11 19:30:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2024-11-11 19:30:17,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-11 19:30:17,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:30:17,636 INFO L218 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] [2024-11-11 19:30:17,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 19:30:17,637 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:30:17,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:30:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1625779, now seen corresponding path program 1 times [2024-11-11 19:30:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:30:17,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129908094] [2024-11-11 19:30:17,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:30:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:18,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:18,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:18,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:30:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 19:30:18,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:30:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129908094] [2024-11-11 19:30:18,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129908094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 19:30:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016163141] [2024-11-11 19:30:18,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:18,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 19:30:18,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:30:18,629 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) [2024-11-11 19:30:18,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 19:30:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:18,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 19:30:18,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 19:30:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 19:30:18,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 19:30:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 19:30:19,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016163141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 19:30:19,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 19:30:19,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2024-11-11 19:30:19,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992468075] [2024-11-11 19:30:19,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 19:30:19,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-11 19:30:19,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:30:19,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-11 19:30:19,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-11 19:30:19,184 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-11 19:30:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:30:20,111 INFO L93 Difference]: Finished difference Result 263 states and 342 transitions. [2024-11-11 19:30:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-11 19:30:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 38 [2024-11-11 19:30:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:30:20,113 INFO L225 Difference]: With dead ends: 263 [2024-11-11 19:30:20,113 INFO L226 Difference]: Without dead ends: 145 [2024-11-11 19:30:20,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=1165, Unknown=0, NotChecked=0, Total=1332 [2024-11-11 19:30:20,115 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 66 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 19:30:20,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1197 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 19:30:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-11 19:30:20,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2024-11-11 19:30:20,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 108 states have (on average 1.2407407407407407) internal successors, (134), 126 states have internal predecessors, (134), 27 states have call successors, (27), 9 states have call predecessors, (27), 8 states have return successors, (14), 11 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-11 19:30:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2024-11-11 19:30:20,136 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 38 [2024-11-11 19:30:20,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:30:20,139 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2024-11-11 19:30:20,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-11 19:30:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2024-11-11 19:30:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-11 19:30:20,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:30:20,142 INFO L218 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] [2024-11-11 19:30:20,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 19:30:20,342 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 [2024-11-11 19:30:20,343 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:30:20,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:30:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1447704685, now seen corresponding path program 1 times [2024-11-11 19:30:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:30:20,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758214062] [2024-11-11 19:30:20,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:30:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:20,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-11 19:30:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 19:30:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:30:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 19:30:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:21,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-11 19:30:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 19:30:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:30:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-11 19:30:22,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:30:22,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758214062] [2024-11-11 19:30:22,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758214062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 19:30:22,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727744258] [2024-11-11 19:30:22,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:22,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 19:30:22,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:30:22,119 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) [2024-11-11 19:30:22,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 19:30:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:22,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-11-11 19:30:22,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 19:30:22,494 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 [2024-11-11 19:30:27,413 INFO L349 Elim1Store]: treesize reduction 46, result has 24.6 percent of original size [2024-11-11 19:30:27,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 84 [2024-11-11 19:30:27,426 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 0 case distinctions, treesize of input 35 treesize of output 16 [2024-11-11 19:30:27,450 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-11 19:30:27,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 19 [2024-11-11 19:30:27,468 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 [2024-11-11 19:30:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 78 proven. 39 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-11 19:30:27,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 19:30:28,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727744258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 19:30:28,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-11 19:30:28,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 34] total 42 [2024-11-11 19:30:28,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078257918] [2024-11-11 19:30:28,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-11 19:30:28,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-11 19:30:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:30:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-11 19:30:28,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1665, Unknown=2, NotChecked=0, Total=1806 [2024-11-11 19:30:28,291 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 42 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 34 states have internal predecessors, (95), 16 states have call successors, (25), 5 states have call predecessors, (25), 12 states have return successors, (19), 13 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-11 19:30:33,263 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] [2024-11-11 19:30:37,284 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] [2024-11-11 19:30:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:30:48,464 INFO L93 Difference]: Finished difference Result 364 states and 444 transitions. [2024-11-11 19:30:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-11 19:30:48,465 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 34 states have internal predecessors, (95), 16 states have call successors, (25), 5 states have call predecessors, (25), 12 states have return successors, (19), 13 states have call predecessors, (19), 14 states have call successors, (19) Word has length 110 [2024-11-11 19:30:48,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:30:48,467 INFO L225 Difference]: With dead ends: 364 [2024-11-11 19:30:48,467 INFO L226 Difference]: Without dead ends: 221 [2024-11-11 19:30:48,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=405, Invalid=4829, Unknown=22, NotChecked=0, Total=5256 [2024-11-11 19:30:48,475 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 201 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 56 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-11 19:30:48,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 2461 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2652 Invalid, 31 Unknown, 0 Unchecked, 10.6s Time] [2024-11-11 19:30:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-11 19:30:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 182. [2024-11-11 19:30:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 141 states have (on average 1.2269503546099292) internal successors, (173), 158 states have internal predecessors, (173), 29 states have call successors, (29), 12 states have call predecessors, (29), 11 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-11 19:30:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 217 transitions. [2024-11-11 19:30:48,491 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 217 transitions. Word has length 110 [2024-11-11 19:30:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:30:48,492 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 217 transitions. [2024-11-11 19:30:48,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 34 states have internal predecessors, (95), 16 states have call successors, (25), 5 states have call predecessors, (25), 12 states have return successors, (19), 13 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-11 19:30:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 217 transitions. [2024-11-11 19:30:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 19:30:48,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:30:48,493 INFO L218 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] [2024-11-11 19:30:48,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 19:30:48,694 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 [2024-11-11 19:30:48,695 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:30:48,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:30:48,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1668793987, now seen corresponding path program 1 times [2024-11-11 19:30:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:30:48,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786166487] [2024-11-11 19:30:48,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:30:48,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:30:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:51,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-11 19:30:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 19:30:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:30:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:30:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:54,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 19:30:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:55,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-11 19:30:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:56,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-11 19:30:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:30:57,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 19:30:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:31:32,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 19:31:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:31:33,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 19:31:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:31:37,048 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 68 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 19:31:37,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:31:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786166487] [2024-11-11 19:31:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786166487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 19:31:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27641808] [2024-11-11 19:31:37,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:31:37,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 19:31:37,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:31:37,059 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) [2024-11-11 19:31:37,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 19:31:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:31:37,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 230 conjuncts are in the unsatisfiable core [2024-11-11 19:31:37,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 19:31:37,957 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 [2024-11-11 19:31:37,959 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 [2024-11-11 19:31:38,069 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 [2024-11-11 19:31:38,195 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 [2024-11-11 19:31:38,353 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 [2024-11-11 19:31:38,440 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-11-11 19:31:38,440 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-11 19:31:39,038 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 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-11 19:31:39,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 17 treesize of output 8 [2024-11-11 19:31:39,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 25 treesize of output 21 [2024-11-11 19:31:39,643 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 90 treesize of output 54 [2024-11-11 19:31:40,160 INFO L349 Elim1Store]: treesize reduction 100, result has 34.6 percent of original size [2024-11-11 19:31:40,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 171 [2024-11-11 19:31:40,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-11 19:31:40,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 189 [2024-11-11 19:31:41,768 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 11 treesize of output 3 [2024-11-11 19:31:42,693 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 0 case distinctions, treesize of input 73 treesize of output 44 [2024-11-11 19:31:42,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 44 [2024-11-11 19:31:42,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 44 [2024-11-11 19:31:42,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 44 [2024-11-11 19:31:42,781 INFO L349 Elim1Store]: treesize reduction 91, result has 18.8 percent of original size [2024-11-11 19:31:42,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 67 [2024-11-11 19:31:42,794 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 11 treesize of output 3 [2024-11-11 19:31:43,036 INFO L349 Elim1Store]: treesize reduction 91, result has 18.8 percent of original size [2024-11-11 19:31:43,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 67 [2024-11-11 19:31:43,049 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 11 treesize of output 3 [2024-11-11 19:31:43,190 INFO L349 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2024-11-11 19:31:43,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 59 [2024-11-11 19:31:43,215 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 11 treesize of output 3 [2024-11-11 19:31:43,270 INFO L349 Elim1Store]: treesize reduction 91, result has 18.8 percent of original size [2024-11-11 19:31:43,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 67 [2024-11-11 19:31:43,281 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 11 treesize of output 3 [2024-11-11 19:31:43,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 396 [2024-11-11 19:31:43,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 56 [2024-11-11 19:31:43,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 56 [2024-11-11 19:31:43,953 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 0 case distinctions, treesize of input 94 treesize of output 35 [2024-11-11 19:31:43,991 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 11 treesize of output 3 [2024-11-11 19:31:44,807 INFO L349 Elim1Store]: treesize reduction 116, result has 15.3 percent of original size [2024-11-11 19:31:44,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 55 [2024-11-11 19:31:44,925 INFO L349 Elim1Store]: treesize reduction 96, result has 11.1 percent of original size [2024-11-11 19:31:44,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 47 [2024-11-11 19:31:44,983 INFO L349 Elim1Store]: treesize reduction 116, result has 15.3 percent of original size [2024-11-11 19:31:44,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 55 [2024-11-11 19:31:45,039 INFO L349 Elim1Store]: treesize reduction 116, result has 15.3 percent of original size [2024-11-11 19:31:45,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 55 [2024-11-11 19:31:45,256 INFO L349 Elim1Store]: treesize reduction 234, result has 20.7 percent of original size [2024-11-11 19:31:45,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 189 treesize of output 282