./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.c --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.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 d115e09498e3f278fd539730f0fa55e0745770e0304e10455a14000311085b68 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:24:20,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:24:20,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 21:24:20,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:24:20,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:24:20,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:24:20,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:24:20,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:24:20,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:24:20,532 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:24:20,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:24:20,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:24:20,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:24:20,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:24:20,534 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:24:20,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:24:20,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:24:20,535 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:24:20,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:24:20,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:24:20,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:24:20,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:24:20,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:24:20,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:24:20,537 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:24:20,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:24:20,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:24:20,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:24:20,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:24:20,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:24:20,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:24:20,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:24:20,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:24:20,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:24:20,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:24:20,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:24:20,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:24:20,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:24:20,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:24:20,541 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:24:20,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:24:20,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:24:20,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d115e09498e3f278fd539730f0fa55e0745770e0304e10455a14000311085b68 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:24:20,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:24:20,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:24:20,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:24:20,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:24:20,778 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:24:20,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.c [2023-11-22 21:24:21,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:24:22,002 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:24:22,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.c [2023-11-22 21:24:22,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec670958/21320ae382bb497887f1186ad188e894/FLAG47e18c945 [2023-11-22 21:24:22,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec670958/21320ae382bb497887f1186ad188e894 [2023-11-22 21:24:22,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:24:22,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:24:22,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:24:22,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:24:22,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:24:22,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70585fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22, skipping insertion in model container [2023-11-22 21:24:22,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:24:22,157 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.c[1137,1150] [2023-11-22 21:24:22,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:24:22,179 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:24:22,187 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_bresenham-ll.c[1137,1150] [2023-11-22 21:24:22,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:24:22,206 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:24:22,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22 WrapperNode [2023-11-22 21:24:22,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:24:22,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:24:22,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:24:22,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:24:22,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,237 INFO L138 Inliner]: procedures = 16, calls = 76, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 85 [2023-11-22 21:24:22,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:24:22,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:24:22,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:24:22,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:24:22,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:24:22,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:24:22,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:24:22,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:24:22,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (1/1) ... [2023-11-22 21:24:22,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:24:22,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:24:22,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:24:22,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:24:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:24:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 21:24:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:24:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 21:24:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:24:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:24:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 21:24:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_41_0 [2023-11-22 21:24:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_41_0 [2023-11-22 21:24:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-22 21:24:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-22 21:24:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:24:22,447 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:24:22,449 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:24:22,689 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:24:22,710 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:24:22,710 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 21:24:22,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:24:22 BoogieIcfgContainer [2023-11-22 21:24:22,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:24:22,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:24:22,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:24:22,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:24:22,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:24:22" (1/3) ... [2023-11-22 21:24:22,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2336c53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:24:22, skipping insertion in model container [2023-11-22 21:24:22,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:22" (2/3) ... [2023-11-22 21:24:22,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2336c53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:24:22, skipping insertion in model container [2023-11-22 21:24:22,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:24:22" (3/3) ... [2023-11-22 21:24:22,725 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_bresenham-ll.c [2023-11-22 21:24:22,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:24:22,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:24:22,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:24:22,785 INFO L357 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, mHoare=true, 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;@740fe84e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:24:22,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:24:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 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) [2023-11-22 21:24:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-22 21:24:22,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:24:22,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:24:22,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:24:22,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:24:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash 984208655, now seen corresponding path program 1 times [2023-11-22 21:24:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:24:22,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070379382] [2023-11-22 21:24:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:24:22,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-22 21:24:22,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707647719] [2023-11-22 21:24:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:22,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:24:22,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:24:22,949 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) [2023-11-22 21:24:22,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:24:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:24:23,061 WARN L260 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 104 conjunts are in the unsatisfiable core [2023-11-22 21:24:23,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:24:23,328 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:23,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:24,174 INFO L349 Elim1Store]: treesize reduction 640, result has 13.2 percent of original size [2023-11-22 21:24:24,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 784 treesize of output 163 [2023-11-22 21:24:24,589 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:24,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:25,117 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:25,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:25,130 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:24:25,600 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:25,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:25,663 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,664 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,672 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-11-22 21:24:25,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:25,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:25,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:25,688 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 16 treesize of output 20 [2023-11-22 21:24:25,763 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:25,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:25,829 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,830 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,840 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-11-22 21:24:25,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:25,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:25,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:25,859 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 16 treesize of output 20 [2023-11-22 21:24:25,892 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,893 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:25,920 INFO L349 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2023-11-22 21:24:25,921 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 2 case distinctions, treesize of input 59 treesize of output 22 [2023-11-22 21:24:26,038 INFO L349 Elim1Store]: treesize reduction 331, result has 19.9 percent of original size [2023-11-22 21:24:26,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:26,279 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:26,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:26,360 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,362 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,365 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-22 21:24:26,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 11 [2023-11-22 21:24:26,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,370 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-11-22 21:24:26,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,394 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,425 INFO L349 Elim1Store]: treesize reduction 70, result has 24.7 percent of original size [2023-11-22 21:24:26,426 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 2 case distinctions, treesize of input 59 treesize of output 30 [2023-11-22 21:24:26,499 INFO L349 Elim1Store]: treesize reduction 140, result has 25.9 percent of original size [2023-11-22 21:24:26,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 105 [2023-11-22 21:24:26,660 INFO L349 Elim1Store]: treesize reduction 331, result has 19.9 percent of original size [2023-11-22 21:24:26,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:26,684 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:24:26,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:26,884 INFO L349 Elim1Store]: treesize reduction 70, result has 24.7 percent of original size [2023-11-22 21:24:26,884 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 2 case distinctions, treesize of input 59 treesize of output 30 [2023-11-22 21:24:26,957 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:26,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:27,099 INFO L349 Elim1Store]: treesize reduction 140, result has 25.9 percent of original size [2023-11-22 21:24:27,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 105 [2023-11-22 21:24:27,253 INFO L349 Elim1Store]: treesize reduction 331, result has 19.9 percent of original size [2023-11-22 21:24:27,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:27,414 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,414 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,430 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:27,430 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:27,432 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,433 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,448 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:27,449 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:27,452 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,470 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:27,470 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:27,482 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,483 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:27,523 INFO L349 Elim1Store]: treesize reduction 102, result has 25.0 percent of original size [2023-11-22 21:24:27,523 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 3 case distinctions, treesize of input 171 treesize of output 41 [2023-11-22 21:24:27,596 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-11-22 21:24:27,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 103 [2023-11-22 21:24:28,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:28,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 51 [2023-11-22 21:24:28,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-22 21:24:28,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-11-22 21:24:28,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:24:28,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:24:28,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:24:28,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070379382] [2023-11-22 21:24:28,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-22 21:24:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707647719] [2023-11-22 21:24:28,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707647719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:24:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:24:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:24:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504081449] [2023-11-22 21:24:28,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:24:28,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:24:28,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:24:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:24:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:24:28,393 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 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 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 21:24:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:24:28,908 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2023-11-22 21:24:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 21:24:28,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-22 21:24:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:24:28,914 INFO L225 Difference]: With dead ends: 50 [2023-11-22 21:24:28,914 INFO L226 Difference]: Without dead ends: 28 [2023-11-22 21:24:28,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:24:28,918 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:24:28,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 101 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 1 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:24:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-22 21:24:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-11-22 21:24:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-22 21:24:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-22 21:24:28,944 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 8 [2023-11-22 21:24:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:24:28,944 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-22 21:24:28,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 21:24:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-22 21:24:28,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-22 21:24:28,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:24:28,946 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:24:28,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:24:29,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-22 21:24:29,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:24:29,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:24:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1264213224, now seen corresponding path program 1 times [2023-11-22 21:24:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:24:29,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143868009] [2023-11-22 21:24:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:29,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:24:29,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-22 21:24:29,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498345653] [2023-11-22 21:24:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:29,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:24:29,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:24:29,182 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) [2023-11-22 21:24:29,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:24:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:24:29,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-22 21:24:29,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:24:29,344 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:29,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:29,372 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:29,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:29,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:29,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:29,385 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 16 treesize of output 20 [2023-11-22 21:24:29,545 INFO L349 Elim1Store]: treesize reduction 331, result has 19.9 percent of original size [2023-11-22 21:24:29,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:29,618 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:29,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 75 treesize of output 92 [2023-11-22 21:24:29,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:29,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:29,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:29,721 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 16 treesize of output 20 [2023-11-22 21:24:29,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:29,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:29,827 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 15 treesize of output 19 [2023-11-22 21:24:29,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:29,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:29,897 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 58 treesize of output 60 [2023-11-22 21:24:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:29,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:29,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2023-11-22 21:24:30,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:30,009 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 137 treesize of output 169 [2023-11-22 21:24:30,597 INFO L349 Elim1Store]: treesize reduction 126, result has 33.3 percent of original size [2023-11-22 21:24:30,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:30,671 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:30,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:30,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:30,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:30,688 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 16 treesize of output 20 [2023-11-22 21:24:30,737 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:30,737 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:30,769 INFO L349 Elim1Store]: treesize reduction 63, result has 32.3 percent of original size [2023-11-22 21:24:30,769 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 2 case distinctions, treesize of input 59 treesize of output 37 [2023-11-22 21:24:30,853 INFO L349 Elim1Store]: treesize reduction 140, result has 25.9 percent of original size [2023-11-22 21:24:30,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 105 [2023-11-22 21:24:30,918 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:30,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:30,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:30,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:30,935 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 16 treesize of output 20 [2023-11-22 21:24:31,074 INFO L349 Elim1Store]: treesize reduction 345, result has 16.5 percent of original size [2023-11-22 21:24:31,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 129 [2023-11-22 21:24:31,158 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:31,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 68 treesize of output 85 [2023-11-22 21:24:31,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:31,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:31,240 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:24:31,240 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 11 treesize of output 7 [2023-11-22 21:24:31,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:31,403 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-22 21:24:31,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-22 21:24:31,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:31,424 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 15 treesize of output 19 [2023-11-22 21:24:31,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:31,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:31,508 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:31,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-11-22 21:24:31,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:31,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:31,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:31,625 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 237 treesize of output 253 [2023-11-22 21:24:33,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:33,027 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:33,055 INFO L349 Elim1Store]: treesize reduction 70, result has 24.7 percent of original size [2023-11-22 21:24:33,056 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 2 case distinctions, treesize of input 59 treesize of output 30 [2023-11-22 21:24:33,125 INFO L349 Elim1Store]: treesize reduction 156, result has 17.5 percent of original size [2023-11-22 21:24:33,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 89 [2023-11-22 21:24:33,163 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:33,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:33,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:33,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:33,200 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 16 treesize of output 20 [2023-11-22 21:24:33,224 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:33,224 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:33,255 INFO L349 Elim1Store]: treesize reduction 70, result has 24.7 percent of original size [2023-11-22 21:24:33,255 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 2 case distinctions, treesize of input 59 treesize of output 30 [2023-11-22 21:24:33,372 INFO L349 Elim1Store]: treesize reduction 345, result has 16.5 percent of original size [2023-11-22 21:24:33,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 129 [2023-11-22 21:24:33,449 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:33,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 68 treesize of output 85 [2023-11-22 21:24:33,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:33,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:33,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:33,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:33,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:33,704 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-22 21:24:33,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-22 21:24:33,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:33,734 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 15 treesize of output 19 [2023-11-22 21:24:33,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:33,761 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 41 treesize of output 45 [2023-11-22 21:24:33,795 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:24:33,795 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 11 treesize of output 7 [2023-11-22 21:24:33,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:33,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:33,845 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 189 treesize of output 219 [2023-11-22 21:24:34,864 INFO L349 Elim1Store]: treesize reduction 140, result has 25.9 percent of original size [2023-11-22 21:24:34,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 105 [2023-11-22 21:24:34,899 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:34,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:34,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:34,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:34,921 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 16 treesize of output 20 [2023-11-22 21:24:34,998 INFO L349 Elim1Store]: treesize reduction 156, result has 17.5 percent of original size [2023-11-22 21:24:34,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 89 [2023-11-22 21:24:35,031 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:35,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:35,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:35,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:35,050 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 16 treesize of output 20 [2023-11-22 21:24:35,260 INFO L349 Elim1Store]: treesize reduction 640, result has 13.2 percent of original size [2023-11-22 21:24:35,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 784 treesize of output 163 [2023-11-22 21:24:35,378 INFO L349 Elim1Store]: treesize reduction 150, result has 35.1 percent of original size [2023-11-22 21:24:35,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 18 case distinctions, treesize of input 91 treesize of output 133 [2023-11-22 21:24:35,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:35,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:35,607 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 15 treesize of output 19 [2023-11-22 21:24:35,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:35,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:35,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:36,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:36,183 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:24:36,184 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 11 treesize of output 7 [2023-11-22 21:24:36,226 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-22 21:24:36,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-22 21:24:36,280 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:24:36,280 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 11 treesize of output 7 [2023-11-22 21:24:36,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:36,500 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-11-22 21:24:36,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-22 21:24:36,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:36,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:36,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:36,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:36,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:36,916 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 20 treesize of output 24 [2023-11-22 21:24:36,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:36,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:36,974 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 36 treesize of output 40 [2023-11-22 21:24:37,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:37,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2023-11-22 21:24:37,103 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-22 21:24:37,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 59 [2023-11-22 21:24:37,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:37,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2023-11-22 21:24:37,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:37,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:37,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 106 [2023-11-22 21:24:37,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:37,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:37,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 71 [2023-11-22 21:24:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:37,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:37,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2023-11-22 21:24:37,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:37,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:37,834 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-22 21:24:37,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 89 [2023-11-22 21:24:37,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:37,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 671 treesize of output 693 [2023-11-22 21:24:44,943 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:44,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:45,756 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:45,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:46,559 INFO L349 Elim1Store]: treesize reduction 327, result has 19.3 percent of original size [2023-11-22 21:24:46,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:47,016 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,039 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:47,039 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:47,051 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,052 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,094 INFO L349 Elim1Store]: treesize reduction 102, result has 25.0 percent of original size [2023-11-22 21:24:47,094 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 3 case distinctions, treesize of input 171 treesize of output 41 [2023-11-22 21:24:47,117 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,118 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,135 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:47,135 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:47,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,143 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:47,159 INFO L349 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2023-11-22 21:24:47,159 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:24:47,190 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-11-22 21:24:47,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 103 [2023-11-22 21:24:47,357 WARN L876 $PredicateComparison]: unable to prove that (exists ((func_to_recursive_line_0_to_41_0_~Y.offset Int) (func_to_recursive_line_0_to_41_0_~Y.base Int) (func_to_recursive_line_0_to_41_0_~x.offset Int) (func_to_recursive_line_0_to_41_0_~yx.offset Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |c_func_to_recursive_line_0_to_41_0_#in~yx.base| (store (select |c_old(#memory_int)| |c_func_to_recursive_line_0_to_41_0_#in~yx.base|) func_to_recursive_line_0_to_41_0_~yx.offset (* (select (select |c_old(#memory_int)| |c_func_to_recursive_line_0_to_41_0_#in~x.base|) func_to_recursive_line_0_to_41_0_~x.offset) (select (select |c_old(#memory_int)| func_to_recursive_line_0_to_41_0_~Y.base) func_to_recursive_line_0_to_41_0_~Y.offset)))) |c_func_to_recursive_line_0_to_41_0_#in~xy.base| (select |c_#memory_int| |c_func_to_recursive_line_0_to_41_0_#in~xy.base|)))) is different from true [2023-11-22 21:24:47,398 INFO L349 Elim1Store]: treesize reduction 36, result has 54.4 percent of original size [2023-11-22 21:24:47,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 60 [2023-11-22 21:24:47,440 INFO L349 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2023-11-22 21:24:47,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 85 [2023-11-22 21:24:47,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-22 21:24:47,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:47,588 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 17 treesize of output 21 [2023-11-22 21:24:47,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:47,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:47,705 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 17 treesize of output 21 [2023-11-22 21:24:47,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-22 21:24:47,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:47,811 INFO L349 Elim1Store]: treesize reduction 99, result has 13.2 percent of original size [2023-11-22 21:24:47,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 60 treesize of output 88 [2023-11-22 21:24:47,830 INFO L349 Elim1Store]: treesize reduction 61, result has 12.9 percent of original size [2023-11-22 21:24:47,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 70 treesize of output 85 [2023-11-22 21:24:47,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:24:49,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:49,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:49,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 47 [2023-11-22 21:24:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:24:50,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:24:56,089 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_func_to_recursive_line_0_to_41_0_~Y.offset_9 Int) (v_ArrVal_160 (Array Int Int)) (v_func_to_recursive_line_0_to_41_0_~yx.offset_7 Int) (|ULTIMATE.start_main_~#xy~0#1.offset| Int) (|ULTIMATE.start_main_~#yx~0#1.offset| Int) (v_func_to_recursive_line_0_to_41_0_~Y.base_9 Int) (v_func_to_recursive_line_0_to_41_0_~x.offset_9 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#yx~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#yx~0#1.base|) v_func_to_recursive_line_0_to_41_0_~yx.offset_7 (* (select (select |c_#memory_int| v_func_to_recursive_line_0_to_41_0_~Y.base_9) v_func_to_recursive_line_0_to_41_0_~Y.offset_9) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) v_func_to_recursive_line_0_to_41_0_~x.offset_9)))))) (let ((.cse2 (store v_ArrVal_160 |ULTIMATE.start_main_~#xy~0#1.offset| (let ((.cse5 (store .cse4 |c_ULTIMATE.start_main_~#xy~0#1.base| v_ArrVal_160))) (* (select (select .cse5 |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|) (select (select .cse5 |c_ULTIMATE.start_main_~#y~0#1.base|) |c_ULTIMATE.start_main_~#y~0#1.offset|)))))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~#xy~0#1.base| .cse2))) (let ((.cse1 (* (select (select .cse3 |c_ULTIMATE.start_main_~#Y~0#1.base|) |c_ULTIMATE.start_main_~#Y~0#1.offset|) (select (select .cse3 |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|)))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#xy~0#1.base| .cse2) |c_ULTIMATE.start_main_~#yx~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#yx~0#1.base|) |ULTIMATE.start_main_~#yx~0#1.offset| .cse1)))) (= (+ (select (select .cse0 |c_ULTIMATE.start_main_~#v~0#1.base|) |c_ULTIMATE.start_main_~#v~0#1.offset|) (* 2 (select (select .cse0 |c_ULTIMATE.start_main_~#xy~0#1.base|) |ULTIMATE.start_main_~#xy~0#1.offset|)) (select (select .cse0 |c_ULTIMATE.start_main_~#X~0#1.base|) |c_ULTIMATE.start_main_~#X~0#1.offset|)) (+ (* (select (select .cse0 |c_ULTIMATE.start_main_~#y~0#1.base|) |c_ULTIMATE.start_main_~#y~0#1.offset|) 2) (* .cse1 2) (* 2 (select (select .cse0 |c_ULTIMATE.start_main_~#Y~0#1.base|) |c_ULTIMATE.start_main_~#Y~0#1.offset|)))))))))) is different from false [2023-11-22 21:24:56,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:24:56,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143868009] [2023-11-22 21:24:56,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-22 21:24:56,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498345653] [2023-11-22 21:24:56,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498345653] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:24:56,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:24:56,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-22 21:24:56,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956971405] [2023-11-22 21:24:56,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-22 21:24:56,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 21:24:56,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:24:56,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 21:24:56,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=151, Unknown=3, NotChecked=50, Total=240 [2023-11-22 21:24:56,095 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:24:56,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:24:56,386 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-22 21:24:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 21:24:56,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-22 21:24:56,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:24:56,388 INFO L225 Difference]: With dead ends: 38 [2023-11-22 21:24:56,388 INFO L226 Difference]: Without dead ends: 30 [2023-11-22 21:24:56,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=70, Invalid=277, Unknown=3, NotChecked=70, Total=420 [2023-11-22 21:24:56,389 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:24:56,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 79 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 100 Unchecked, 0.1s Time] [2023-11-22 21:24:56,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-22 21:24:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-11-22 21:24:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-22 21:24:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-22 21:24:56,394 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2023-11-22 21:24:56,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:24:56,394 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-22 21:24:56,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-22 21:24:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-22 21:24:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 21:24:56,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:24:56,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:24:56,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-22 21:24:56,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-22 21:24:56,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:24:56,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:24:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1576769918, now seen corresponding path program 1 times [2023-11-22 21:24:56,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:24:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081449487] [2023-11-22 21:24:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:24:56,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-22 21:24:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094681917] [2023-11-22 21:24:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:24:56,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:24:56,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:24:56,637 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) [2023-11-22 21:24:56,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:24:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:24:56,782 WARN L260 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 171 conjunts are in the unsatisfiable core [2023-11-22 21:24:56,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:24:56,895 INFO L349 Elim1Store]: treesize reduction 315, result has 20.7 percent of original size [2023-11-22 21:24:56,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:56,997 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:56,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 75 treesize of output 92 [2023-11-22 21:24:57,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:57,129 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 34 treesize of output 38 [2023-11-22 21:24:57,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:57,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:57,207 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:24:57,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:57,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-22 21:24:57,246 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:24:57,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:57,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 161 [2023-11-22 21:24:57,445 INFO L349 Elim1Store]: treesize reduction 110, result has 36.4 percent of original size [2023-11-22 21:24:57,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:57,464 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:57,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:57,570 INFO L349 Elim1Store]: treesize reduction 124, result has 28.3 percent of original size [2023-11-22 21:24:57,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 152 treesize of output 97 [2023-11-22 21:24:57,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:57,599 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-22 21:24:57,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 11 [2023-11-22 21:24:57,638 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:57,668 INFO L349 Elim1Store]: treesize reduction 55, result has 35.3 percent of original size [2023-11-22 21:24:57,669 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 2 case distinctions, treesize of input 59 treesize of output 37 [2023-11-22 21:24:57,782 INFO L349 Elim1Store]: treesize reduction 315, result has 20.7 percent of original size [2023-11-22 21:24:57,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 143 [2023-11-22 21:24:57,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:57,892 INFO L349 Elim1Store]: treesize reduction 72, result has 36.3 percent of original size [2023-11-22 21:24:57,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 75 treesize of output 84 [2023-11-22 21:24:57,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:57,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:58,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:58,002 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 30 treesize of output 32 [2023-11-22 21:24:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:58,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-22 21:24:58,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:58,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 113 [2023-11-22 21:24:58,257 INFO L349 Elim1Store]: treesize reduction 110, result has 36.4 percent of original size [2023-11-22 21:24:58,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 119 [2023-11-22 21:24:58,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:58,289 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-22 21:24:58,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 11 [2023-11-22 21:24:58,334 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:58,363 INFO L349 Elim1Store]: treesize reduction 55, result has 35.3 percent of original size [2023-11-22 21:24:58,364 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 2 case distinctions, treesize of input 59 treesize of output 37 [2023-11-22 21:24:58,422 INFO L349 Elim1Store]: treesize reduction 124, result has 28.3 percent of original size [2023-11-22 21:24:58,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 152 treesize of output 97 [2023-11-22 21:24:58,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:58,447 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-22 21:24:58,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 11 [2023-11-22 21:24:58,559 INFO L349 Elim1Store]: treesize reduction 345, result has 13.1 percent of original size [2023-11-22 21:24:58,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 113 [2023-11-22 21:24:58,618 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:58,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 60 treesize of output 77 [2023-11-22 21:24:58,695 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 21:24:58,696 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 15 treesize of output 15 [2023-11-22 21:24:58,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:58,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:58,746 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 15 treesize of output 19 [2023-11-22 21:24:58,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:58,769 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 20 treesize of output 24 [2023-11-22 21:24:58,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:58,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 85 [2023-11-22 21:24:58,966 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:58,967 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:24:58,989 INFO L349 Elim1Store]: treesize reduction 70, result has 17.6 percent of original size [2023-11-22 21:24:58,989 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 2 case distinctions, treesize of input 59 treesize of output 22 [2023-11-22 21:24:59,040 INFO L349 Elim1Store]: treesize reduction 140, result has 19.1 percent of original size [2023-11-22 21:24:59,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 89 [2023-11-22 21:24:59,085 INFO L349 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2023-11-22 21:24:59,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 19 [2023-11-22 21:24:59,156 INFO L349 Elim1Store]: treesize reduction 140, result has 19.1 percent of original size [2023-11-22 21:24:59,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 89 [2023-11-22 21:24:59,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:59,187 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-22 21:24:59,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 11 [2023-11-22 21:24:59,299 INFO L349 Elim1Store]: treesize reduction 311, result has 20.1 percent of original size [2023-11-22 21:24:59,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 139 [2023-11-22 21:24:59,405 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:24:59,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 71 treesize of output 88 [2023-11-22 21:24:59,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:24:59,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:24:59,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:24:59,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:59,590 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 40 treesize of output 44 [2023-11-22 21:24:59,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:59,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2023-11-22 21:24:59,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:24:59,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 137 [2023-11-22 21:25:00,111 INFO L349 Elim1Store]: treesize reduction 325, result has 16.5 percent of original size [2023-11-22 21:25:00,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 125 [2023-11-22 21:25:00,202 INFO L349 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2023-11-22 21:25:00,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 64 treesize of output 81 [2023-11-22 21:25:00,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:25:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:00,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-22 21:25:00,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:00,413 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 20 treesize of output 24 [2023-11-22 21:25:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:00,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:25:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:00,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:25:00,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:00,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 137 [2023-11-22 21:25:00,853 INFO L349 Elim1Store]: treesize reduction 325, result has 16.5 percent of original size [2023-11-22 21:25:00,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 125 [2023-11-22 21:25:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:00,940 INFO L349 Elim1Store]: treesize reduction 72, result has 36.3 percent of original size [2023-11-22 21:25:00,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 73 [2023-11-22 21:25:01,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:25:01,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:01,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:25:01,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:01,062 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 15 treesize of output 19 [2023-11-22 21:25:01,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:01,107 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 20 treesize of output 24 [2023-11-22 21:25:01,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:01,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 123 [2023-11-22 21:25:01,674 INFO L349 Elim1Store]: treesize reduction 624, result has 13.5 percent of original size [2023-11-22 21:25:01,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 784 treesize of output 163 [2023-11-22 21:25:01,778 INFO L349 Elim1Store]: treesize reduction 150, result has 35.1 percent of original size [2023-11-22 21:25:01,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 18 case distinctions, treesize of input 91 treesize of output 133 [2023-11-22 21:25:01,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-22 21:25:02,201 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 21:25:02,202 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 15 treesize of output 15 [2023-11-22 21:25:02,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:02,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:25:02,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:02,474 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 74 treesize of output 74 [2023-11-22 21:25:02,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:02,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 66 [2023-11-22 21:25:02,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:02,846 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 20 treesize of output 24 [2023-11-22 21:25:02,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:02,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 52 [2023-11-22 21:25:02,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:02,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 121 [2023-11-22 21:25:03,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:03,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-22 21:25:03,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:03,261 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 40 treesize of output 42 [2023-11-22 21:25:03,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:25:03,439 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 230 treesize of output 252 [2023-11-22 21:25:04,657 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,703 INFO L349 Elim1Store]: treesize reduction 94, result has 26.6 percent of original size [2023-11-22 21:25:04,703 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 3 case distinctions, treesize of input 171 treesize of output 41 [2023-11-22 21:25:04,729 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,730 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,746 INFO L349 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2023-11-22 21:25:04,747 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:25:04,753 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,753 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,770 INFO L349 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2023-11-22 21:25:04,770 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:25:04,779 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,779 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:25:04,796 INFO L349 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2023-11-22 21:25:04,796 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 2 case distinctions, treesize of input 59 treesize of output 1 [2023-11-22 21:25:04,826 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-11-22 21:25:04,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 103 [2023-11-22 21:25:05,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 64 [2023-11-22 21:25:05,308 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 0 case distinctions, treesize of input 49 treesize of output 59 [2023-11-22 21:25:07,279 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 0 case distinctions, treesize of input 64 treesize of output 63 [2023-11-22 21:25:09,523 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 0 case distinctions, treesize of input 52 treesize of output 59 [2023-11-22 21:25:10,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:25:10,677 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 21:25:10,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 38 [2023-11-22 21:25:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:25:10,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:26:15,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:26:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081449487] [2023-11-22 21:26:15,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-22 21:26:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094681917] [2023-11-22 21:26:15,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094681917] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:26:15,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:26:15,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-22 21:26:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310538305] [2023-11-22 21:26:15,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-22 21:26:15,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 21:26:15,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:26:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 21:26:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=385, Unknown=19, NotChecked=0, Total=462 [2023-11-22 21:26:15,136 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 10 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:26:17,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:26:19,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:26:24,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-22 21:26:26,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:26:29,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:26:32,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:26:41,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-22 21:26:43,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-22 21:26:45,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-22 21:26:47,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-22 21:26:47,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:26:47,625 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2023-11-22 21:26:47,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-22 21:26:47,626 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 10 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-22 21:26:47,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:26:47,626 INFO L225 Difference]: With dead ends: 46 [2023-11-22 21:26:47,626 INFO L226 Difference]: Without dead ends: 42 [2023-11-22 21:26:47,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 74.3s TimeCoverageRelationStatistics Valid=85, Invalid=544, Unknown=21, NotChecked=0, Total=650 [2023-11-22 21:26:47,627 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:26:47,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 135 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 10 Unknown, 0 Unchecked, 26.9s Time] [2023-11-22 21:26:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-22 21:26:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-11-22 21:26:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (8), 4 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-22 21:26:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2023-11-22 21:26:47,636 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 20 [2023-11-22 21:26:47,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:26:47,637 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2023-11-22 21:26:47,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 10 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:26:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2023-11-22 21:26:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 21:26:47,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:26:47,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:26:47,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:26:47,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:26:47,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:26:47,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:26:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2038139008, now seen corresponding path program 1 times [2023-11-22 21:26:47,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:26:47,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184454143] [2023-11-22 21:26:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:26:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:26:47,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-22 21:26:47,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512951640] [2023-11-22 21:26:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:26:47,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:26:47,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:26:47,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:26:47,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:26:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:26:48,042 WARN L260 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 209 conjunts are in the unsatisfiable core [2023-11-22 21:26:48,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:26:48,068 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-11-22 21:26:48,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 103 [2023-11-22 21:26:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:26:48,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 34 [2023-11-22 21:26:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:26:48,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:26:48,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2023-11-22 21:26:56,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:26:56,482 INFO L349 Elim1Store]: treesize reduction 675, result has 27.1 percent of original size [2023-11-22 21:26:56,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 42 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 56 case distinctions, treesize of input 180 treesize of output 354 [2023-11-22 21:27:32,681 WARN L293 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 1035 DAG size of output: 1200 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15