./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/recursified_loop-crafted/recursified_simple_array_index_value_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 a00615dde165ef79502be50d436d5b7101f564051a4b91f339855b18841d9599 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:27:34,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:27:34,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:27:34,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:27:34,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:27:34,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:27:34,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:27:34,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:27:34,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:27:34,446 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:27:34,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:27:34,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:27:34,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:27:34,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:27:34,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:27:34,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:27:34,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:27:34,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:27:34,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:27:34,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:27:34,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:27:34,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:27:34,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:27:34,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:27:34,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:27:34,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:27:34,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:27:34,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:27:34,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:27:34,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:27:34,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:27:34,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a00615dde165ef79502be50d436d5b7101f564051a4b91f339855b18841d9599 [2024-11-18 14:27:34,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:27:34,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:27:34,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:27:34,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:27:34,682 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:27:34,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i [2024-11-18 14:27:35,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:27:36,079 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:27:36,080 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i [2024-11-18 14:27:36,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1293fdf23/dd0fec24c4cc451cbe48900f916cd0dc/FLAG27fd89a2a [2024-11-18 14:27:36,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1293fdf23/dd0fec24c4cc451cbe48900f916cd0dc [2024-11-18 14:27:36,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:27:36,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:27:36,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:27:36,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:27:36,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:27:36,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676abff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36, skipping insertion in model container [2024-11-18 14:27:36,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:27:36,303 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/recursified_loop-crafted/recursified_simple_array_index_value_2.i[1800,1813] [2024-11-18 14:27:36,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:27:36,347 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:27:36,356 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/recursified_loop-crafted/recursified_simple_array_index_value_2.i[1800,1813] [2024-11-18 14:27:36,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:27:36,377 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:27:36,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36 WrapperNode [2024-11-18 14:27:36,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:27:36,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:27:36,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:27:36,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:27:36,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,403 INFO L138 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-18 14:27:36,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:27:36,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:27:36,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:27:36,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:27:36,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,424 INFO L175 MemorySlicer]: Split 16 memory accesses to 3 slices as follows [2, 12, 2]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 4, 1]. [2024-11-18 14:27:36,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:27:36,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:27:36,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:27:36,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:27:36,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (1/1) ... [2024-11-18 14:27:36,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:27:36,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:27:36,472 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) [2024-11-18 14:27:36,474 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 [2024-11-18 14:27:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 14:27:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 14:27:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_38_to_41_0 [2024-11-18 14:27:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_38_to_41_0 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_44_to_45_0 [2024-11-18 14:27:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_44_to_45_0 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:27:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 14:27:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 14:27:36,593 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:27:36,596 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:27:36,722 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-18 14:27:36,722 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:27:36,731 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:27:36,731 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 14:27:36,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:27:36 BoogieIcfgContainer [2024-11-18 14:27:36,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:27:36,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:27:36,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:27:36,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:27:36,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:27:36" (1/3) ... [2024-11-18 14:27:36,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9c567b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:27:36, skipping insertion in model container [2024-11-18 14:27:36,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:27:36" (2/3) ... [2024-11-18 14:27:36,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9c567b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:27:36, skipping insertion in model container [2024-11-18 14:27:36,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:27:36" (3/3) ... [2024-11-18 14:27:36,737 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_2.i [2024-11-18 14:27:36,749 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:27:36,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:27:36,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:27:36,792 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;@4619d7c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:27:36,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:27:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 14:27:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-18 14:27:36,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:27:36,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:27:36,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:27:36,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:27:36,804 INFO L85 PathProgramCache]: Analyzing trace with hash 335768241, now seen corresponding path program 1 times [2024-11-18 14:27:36,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:27:36,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194475078] [2024-11-18 14:27:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:27:36,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:27:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:27:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:27:37,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:27:37,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194475078] [2024-11-18 14:27:37,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194475078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:27:37,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:27:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:27:37,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26328302] [2024-11-18 14:27:37,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:27:37,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:27:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:27:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:27:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:27:37,289 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:27:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:27:37,396 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2024-11-18 14:27:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:27:37,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-18 14:27:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:27:37,404 INFO L225 Difference]: With dead ends: 52 [2024-11-18 14:27:37,404 INFO L226 Difference]: Without dead ends: 21 [2024-11-18 14:27:37,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:27:37,409 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:27:37,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:27:37,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-18 14:27:37,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-18 14:27:37,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:27:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-18 14:27:37,436 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2024-11-18 14:27:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:27:37,436 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-18 14:27:37,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:27:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-18 14:27:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:27:37,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:27:37,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:27:37,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:27:37,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:27:37,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:27:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1399164292, now seen corresponding path program 1 times [2024-11-18 14:27:37,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:27:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317965944] [2024-11-18 14:27:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:27:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:27:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:27:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:27:37,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:27:37,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317965944] [2024-11-18 14:27:37,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317965944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:27:37,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967016376] [2024-11-18 14:27:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:27:37,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:27:37,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:27:37,915 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) [2024-11-18 14:27:37,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:27:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:27:37,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-18 14:27:37,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:27:38,028 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 [2024-11-18 14:27:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:27:38,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:27:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:27:38,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967016376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:27:38,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:27:38,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 22 [2024-11-18 14:27:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875028340] [2024-11-18 14:27:38,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:27:38,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:27:38,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:27:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:27:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:27:38,611 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-18 14:27:38,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:27:38,848 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-18 14:27:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:27:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2024-11-18 14:27:38,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:27:38,849 INFO L225 Difference]: With dead ends: 34 [2024-11-18 14:27:38,850 INFO L226 Difference]: Without dead ends: 25 [2024-11-18 14:27:38,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:27:38,851 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:27:38,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 100 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:27:38,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-18 14:27:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-18 14:27:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:27:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-18 14:27:38,856 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 20 [2024-11-18 14:27:38,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:27:38,857 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-18 14:27:38,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-18 14:27:38,857 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-18 14:27:38,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-18 14:27:38,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:27:38,858 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:27:38,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:27:39,058 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 [2024-11-18 14:27:39,059 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:27:39,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:27:39,059 INFO L85 PathProgramCache]: Analyzing trace with hash -424419300, now seen corresponding path program 2 times [2024-11-18 14:27:39,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:27:39,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824943613] [2024-11-18 14:27:39,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:27:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:27:39,095 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:27:39,096 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:27:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 14:27:39,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:27:39,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824943613] [2024-11-18 14:27:39,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824943613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:27:39,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802576965] [2024-11-18 14:27:39,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:27:39,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:27:39,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:27:39,841 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) [2024-11-18 14:27:39,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:27:39,961 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:27:39,962 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:27:39,965 WARN L253 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 146 conjuncts are in the unsatisfiable core [2024-11-18 14:27:39,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:27:39,990 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 [2024-11-18 14:27:40,201 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 71 treesize of output 58 [2024-11-18 14:27:40,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 118 [2024-11-18 14:27:40,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 32 [2024-11-18 14:27:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:27:41,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:27:41,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:27:41,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 83 [2024-11-18 14:28:00,564 WARN L286 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 45 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-18 14:28:00,592 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 [2024-11-18 14:28:00,639 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 [2024-11-18 14:28:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:28:00,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:28:04,039 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,040 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,041 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,042 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 14:28:04,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 331 treesize of output 410 [2024-11-18 14:28:04,225 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 14:28:04,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 118 [2024-11-18 14:28:04,261 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:28:04,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 117 [2024-11-18 14:28:04,291 INFO L349 Elim1Store]: treesize reduction 106, result has 7.8 percent of original size [2024-11-18 14:28:04,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 233 treesize of output 122 [2024-11-18 14:28:04,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 14:28:04,308 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 136 treesize of output 55 [2024-11-18 14:28:05,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802576965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:28:05,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 14:28:05,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24] total 36 [2024-11-18 14:28:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262626654] [2024-11-18 14:28:05,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 14:28:05,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-18 14:28:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:28:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-18 14:28:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2024-11-18 14:28:05,651 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 36 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 32 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-18 14:28:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:28:06,772 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-18 14:28:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 14:28:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 32 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 34 [2024-11-18 14:28:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:28:06,774 INFO L225 Difference]: With dead ends: 45 [2024-11-18 14:28:06,775 INFO L226 Difference]: Without dead ends: 34 [2024-11-18 14:28:06,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=313, Invalid=2767, Unknown=0, NotChecked=0, Total=3080 [2024-11-18 14:28:06,776 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:28:06,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 139 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:28:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-18 14:28:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-11-18 14:28:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 23 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 14:28:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-11-18 14:28:06,784 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 34 [2024-11-18 14:28:06,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:28:06,784 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-11-18 14:28:06,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 32 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-18 14:28:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-11-18 14:28:06,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:28:06,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:28:06,786 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:28:06,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:28:06,987 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 [2024-11-18 14:28:06,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:28:06,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:28:06,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1010287503, now seen corresponding path program 3 times [2024-11-18 14:28:06,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:28:06,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983414321] [2024-11-18 14:28:06,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 14:28:06,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:28:07,042 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-18 14:28:07,043 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:28:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:28:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:28:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983414321] [2024-11-18 14:28:07,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983414321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:28:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121254535] [2024-11-18 14:28:07,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 14:28:07,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:28:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:28:07,906 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) [2024-11-18 14:28:07,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:28:08,513 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-18 14:28:08,513 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:28:08,522 WARN L253 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 169 conjuncts are in the unsatisfiable core [2024-11-18 14:28:08,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:28:08,530 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 [2024-11-18 14:28:08,717 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 35 treesize of output 1 [2024-11-18 14:28:26,671 INFO L349 Elim1Store]: treesize reduction 1015, result has 17.7 percent of original size [2024-11-18 14:28:26,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 369 treesize of output 469 [2024-11-18 14:28:26,889 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 104 [2024-11-18 14:28:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 56 [2024-11-18 14:28:27,263 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 104 [2024-11-18 14:28:27,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:27,469 INFO L224 Elim1Store]: Index analysis took 115 ms [2024-11-18 14:28:27,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 56 [2024-11-18 14:28:28,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 112 [2024-11-18 14:28:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:28,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 95 [2024-11-18 14:28:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:31,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:31,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:31,373 INFO L224 Elim1Store]: Index analysis took 102 ms [2024-11-18 14:28:31,397 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2024-11-18 14:28:31,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 75 [2024-11-18 14:28:32,097 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 145 treesize of output 129 [2024-11-18 14:28:32,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:32,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:32,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 14:28:32,269 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2024-11-18 14:28:32,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 75 [2024-11-18 14:28:35,366 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 [2024-11-18 14:28:38,203 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 [2024-11-18 14:28:44,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 14:28:44,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 92 [2024-11-18 14:28:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 5 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:28:47,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:29:15,409 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:29:15,464 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:29:15,526 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:29:15,584 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 14:29:15,681 INFO L224 Elim1Store]: Index analysis took 284 ms