./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-multidimensional/init-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/array-multidimensional/init-2-n-u.c -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 44b18e123610caaf6237dddd08dfbd765ad919d1168e6261239628431b3c22b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 09:25:41,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 09:25:41,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 09:25:41,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 09:25:41,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 09:25:41,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 09:25:41,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 09:25:41,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 09:25:41,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 09:25:41,516 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 09:25:41,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 09:25:41,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 09:25:41,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 09:25:41,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 09:25:41,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 09:25:41,518 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 09:25:41,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 09:25:41,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 09:25:41,519 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 44b18e123610caaf6237dddd08dfbd765ad919d1168e6261239628431b3c22b1 [2025-03-03 09:25:41,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 09:25:41,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 09:25:41,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 09:25:41,756 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 09:25:41,756 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 09:25:41,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-multidimensional/init-2-n-u.c [2025-03-03 09:25:42,908 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c83bfdc/051add34bea74d27a71120f860d76ea8/FLAG5994bea76 [2025-03-03 09:25:43,114 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 09:25:43,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-2-n-u.c [2025-03-03 09:25:43,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c83bfdc/051add34bea74d27a71120f860d76ea8/FLAG5994bea76 [2025-03-03 09:25:43,135 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c83bfdc/051add34bea74d27a71120f860d76ea8 [2025-03-03 09:25:43,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 09:25:43,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 09:25:43,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 09:25:43,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 09:25:43,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 09:25:43,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f65913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43, skipping insertion in model container [2025-03-03 09:25:43,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 09:25:43,255 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/array-multidimensional/init-2-n-u.c[322,335] [2025-03-03 09:25:43,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 09:25:43,276 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 09:25:43,284 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/array-multidimensional/init-2-n-u.c[322,335] [2025-03-03 09:25:43,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 09:25:43,302 INFO L204 MainTranslator]: Completed translation [2025-03-03 09:25:43,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43 WrapperNode [2025-03-03 09:25:43,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 09:25:43,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 09:25:43,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 09:25:43,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 09:25:43,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,325 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2025-03-03 09:25:43,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 09:25:43,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 09:25:43,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 09:25:43,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 09:25:43,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,340 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-03 09:25:43,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,346 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 09:25:43,350 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 09:25:43,350 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 09:25:43,350 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 09:25:43,350 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (1/1) ... [2025-03-03 09:25:43,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 09:25:43,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 09:25:43,376 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) [2025-03-03 09:25:43,379 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 [2025-03-03 09:25:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 09:25:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 09:25:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 09:25:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 09:25:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 09:25:43,450 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 09:25:43,451 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 09:25:43,566 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: call ULTIMATE.dealloc(main_~#A~0#1.base, main_~#A~0#1.offset);havoc main_~#A~0#1.base, main_~#A~0#1.offset; [2025-03-03 09:25:43,578 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-03 09:25:43,578 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 09:25:43,587 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 09:25:43,588 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 09:25:43,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 09:25:43 BoogieIcfgContainer [2025-03-03 09:25:43,588 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 09:25:43,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 09:25:43,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 09:25:43,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 09:25:43,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 09:25:43" (1/3) ... [2025-03-03 09:25:43,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19304c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 09:25:43, skipping insertion in model container [2025-03-03 09:25:43,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 09:25:43" (2/3) ... [2025-03-03 09:25:43,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19304c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 09:25:43, skipping insertion in model container [2025-03-03 09:25:43,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 09:25:43" (3/3) ... [2025-03-03 09:25:43,598 INFO L128 eAbstractionObserver]: Analyzing ICFG init-2-n-u.c [2025-03-03 09:25:43,611 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 09:25:43,612 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG init-2-n-u.c that has 1 procedures, 13 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-03 09:25:43,654 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 09:25:43,664 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;@7e05fcbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 09:25:43,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 09:25:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:43,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 09:25:43,670 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 09:25:43,671 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 09:25:43,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 09:25:43,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 09:25:43,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1037077099, now seen corresponding path program 1 times [2025-03-03 09:25:43,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 09:25:43,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911247682] [2025-03-03 09:25:43,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 09:25:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 09:25:43,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 09:25:43,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 09:25:43,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 09:25:43,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:43,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 09:25:43,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911247682] [2025-03-03 09:25:43,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911247682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 09:25:43,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 09:25:43,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 09:25:43,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334229279] [2025-03-03 09:25:43,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 09:25:43,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 09:25:43,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 09:25:43,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 09:25:43,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 09:25:43,855 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:43,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 09:25:43,892 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2025-03-03 09:25:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 09:25:43,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-03 09:25:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 09:25:43,899 INFO L225 Difference]: With dead ends: 24 [2025-03-03 09:25:43,899 INFO L226 Difference]: Without dead ends: 12 [2025-03-03 09:25:43,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 09:25:43,905 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 09:25:43,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 09:25:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-03-03 09:25:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2025-03-03 09:25:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:43,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2025-03-03 09:25:43,927 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 7 [2025-03-03 09:25:43,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 09:25:43,927 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2025-03-03 09:25:43,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2025-03-03 09:25:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-03 09:25:43,928 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 09:25:43,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 09:25:43,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 09:25:43,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 09:25:43,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 09:25:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1374578899, now seen corresponding path program 1 times [2025-03-03 09:25:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 09:25:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257743066] [2025-03-03 09:25:43,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 09:25:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 09:25:43,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-03 09:25:43,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-03 09:25:43,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 09:25:43,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 09:25:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257743066] [2025-03-03 09:25:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257743066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 09:25:44,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 09:25:44,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 09:25:44,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610249148] [2025-03-03 09:25:44,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 09:25:44,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 09:25:44,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 09:25:44,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 09:25:44,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 09:25:44,017 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 09:25:44,042 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2025-03-03 09:25:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 09:25:44,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-03 09:25:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 09:25:44,042 INFO L225 Difference]: With dead ends: 25 [2025-03-03 09:25:44,042 INFO L226 Difference]: Without dead ends: 17 [2025-03-03 09:25:44,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 09:25:44,043 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 09:25:44,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 09:25:44,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-03 09:25:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2025-03-03 09:25:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2025-03-03 09:25:44,050 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2025-03-03 09:25:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 09:25:44,050 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2025-03-03 09:25:44,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2025-03-03 09:25:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-03 09:25:44,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 09:25:44,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 09:25:44,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 09:25:44,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 09:25:44,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 09:25:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1254815196, now seen corresponding path program 1 times [2025-03-03 09:25:44,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 09:25:44,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413893074] [2025-03-03 09:25:44,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 09:25:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 09:25:44,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-03 09:25:44,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-03 09:25:44,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 09:25:44,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 09:25:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413893074] [2025-03-03 09:25:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413893074] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 09:25:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918686286] [2025-03-03 09:25:44,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 09:25:44,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 09:25:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 09:25:44,171 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) [2025-03-03 09:25:44,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 09:25:44,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-03 09:25:44,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-03 09:25:44,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 09:25:44,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:44,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 09:25:44,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 09:25:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 09:25:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918686286] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 09:25:44,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 09:25:44,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-03 09:25:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55367082] [2025-03-03 09:25:44,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 09:25:44,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 09:25:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 09:25:44,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 09:25:44,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-03-03 09:25:44,311 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 09:25:44,385 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2025-03-03 09:25:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 09:25:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-03 09:25:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 09:25:44,386 INFO L225 Difference]: With dead ends: 41 [2025-03-03 09:25:44,386 INFO L226 Difference]: Without dead ends: 31 [2025-03-03 09:25:44,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2025-03-03 09:25:44,387 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 09:25:44,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 32 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 09:25:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-03-03 09:25:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2025-03-03 09:25:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2025-03-03 09:25:44,394 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 10 [2025-03-03 09:25:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 09:25:44,394 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2025-03-03 09:25:44,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2025-03-03 09:25:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-03 09:25:44,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 09:25:44,394 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 09:25:44,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 09:25:44,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 09:25:44,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 09:25:44,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 09:25:44,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1060418835, now seen corresponding path program 2 times [2025-03-03 09:25:44,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 09:25:44,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013274106] [2025-03-03 09:25:44,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 09:25:44,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 09:25:44,603 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-03-03 09:25:44,616 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-03-03 09:25:44,616 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 09:25:44,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-03 09:25:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 09:25:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013274106] [2025-03-03 09:25:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013274106] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 09:25:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129635825] [2025-03-03 09:25:44,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 09:25:44,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 09:25:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 09:25:44,685 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) [2025-03-03 09:25:44,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 09:25:44,717 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-03-03 09:25:44,731 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-03-03 09:25:44,731 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 09:25:44,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:44,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 09:25:44,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 09:25:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 09:25:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 09:25:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129635825] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 09:25:44,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 09:25:44,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 16 [2025-03-03 09:25:44,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119043864] [2025-03-03 09:25:44,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 09:25:44,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-03 09:25:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 09:25:44,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-03 09:25:44,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2025-03-03 09:25:44,911 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 09:25:45,369 INFO L93 Difference]: Finished difference Result 112 states and 148 transitions. [2025-03-03 09:25:45,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-03 09:25:45,369 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-03 09:25:45,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 09:25:45,370 INFO L225 Difference]: With dead ends: 112 [2025-03-03 09:25:45,370 INFO L226 Difference]: Without dead ends: 90 [2025-03-03 09:25:45,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=643, Invalid=1163, Unknown=0, NotChecked=0, Total=1806 [2025-03-03 09:25:45,372 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 193 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 09:25:45,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 42 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 09:25:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-03-03 09:25:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 61. [2025-03-03 09:25:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 60 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions. [2025-03-03 09:25:45,379 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 13 [2025-03-03 09:25:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 09:25:45,379 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 74 transitions. [2025-03-03 09:25:45,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 09:25:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2025-03-03 09:25:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-03 09:25:45,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 09:25:45,380 INFO L218 NwaCegarLoop]: trace histogram [20, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 09:25:45,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 09:25:45,584 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,SelfDestructingSolverStorable3 [2025-03-03 09:25:45,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 09:25:45,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 09:25:45,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1072790447, now seen corresponding path program 3 times [2025-03-03 09:25:45,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 09:25:45,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121124925] [2025-03-03 09:25:45,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 09:25:45,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 09:25:45,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 13 equivalence classes. [2025-03-03 09:25:45,634 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 31 of 31 statements. [2025-03-03 09:25:45,635 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-03-03 09:25:45,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-03 09:25:45,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 09:25:45,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121124925] [2025-03-03 09:25:45,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121124925] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 09:25:45,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333842357] [2025-03-03 09:25:45,766 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 09:25:45,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 09:25:45,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 09:25:45,768 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) [2025-03-03 09:25:45,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 09:25:45,816 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 13 equivalence classes. [2025-03-03 09:25:46,020 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 29 of 31 statements. [2025-03-03 09:25:46,020 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-03-03 09:25:46,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 09:25:46,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 93 conjuncts are in the unsatisfiable core [2025-03-03 09:25:46,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 09:25:46,095 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 [2025-03-03 09:25:46,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 18 [2025-03-03 09:25:46,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,187 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 1 case distinctions, treesize of input 26 treesize of output 28 [2025-03-03 09:25:46,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2025-03-03 09:25:46,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 48 [2025-03-03 09:25:46,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 60 [2025-03-03 09:25:46,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 58 treesize of output 72 [2025-03-03 09:25:46,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 67 treesize of output 84 [2025-03-03 09:25:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:25:46,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-03 09:25:46,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 96 [2025-03-03 09:26:02,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:02,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:03,045 INFO L349 Elim1Store]: treesize reduction 152, result has 32.1 percent of original size [2025-03-03 09:26:03,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 85 treesize of output 108 [2025-03-03 09:26:19,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:19,430 INFO L349 Elim1Store]: treesize reduction 322, result has 20.1 percent of original size [2025-03-03 09:26:19,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 98 treesize of output 124 [2025-03-03 09:26:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:26:37,397 INFO L349 Elim1Store]: treesize reduction 464, result has 16.8 percent of original size [2025-03-03 09:26:37,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 111 treesize of output 140 [2025-03-03 09:27:01,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:01,685 INFO L349 Elim1Store]: treesize reduction 464, result has 16.8 percent of original size [2025-03-03 09:27:01,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 111 treesize of output 140 [2025-03-03 09:27:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-03 09:27:25,940 INFO L349 Elim1Store]: treesize reduction 464, result has 16.8 percent of original size [2025-03-03 09:27:25,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 111 treesize of output 140