./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array28_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array28_pattern.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 8b49bb3ea989868d96c18ff859c95dc74ebb805f64994c11617c2c5b61c8e87f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 02:46:52,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 02:46:52,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 02:46:52,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 02:46:52,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 02:46:52,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 02:46:52,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 02:46:52,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 02:46:52,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 02:46:52,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 02:46:52,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 02:46:52,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 02:46:52,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 02:46:52,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 02:46:52,287 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 02:46:52,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 02:46:52,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 02:46:52,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 02:46:52,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 02:46:52,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 02:46:52,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 02:46:52,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 02:46:52,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 02:46:52,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 02:46:52,291 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 02:46:52,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 02:46:52,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 02:46:52,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 02:46:52,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 02:46:52,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 02:46:52,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:46:52,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 02:46:52,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 02:46:52,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 02:46:52,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 02:46:52,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 02:46:52,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 02:46:52,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b49bb3ea989868d96c18ff859c95dc74ebb805f64994c11617c2c5b61c8e87f [2024-11-16 02:46:52,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 02:46:52,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 02:46:52,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 02:46:52,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 02:46:52,509 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 02:46:52,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array28_pattern.c [2024-11-16 02:46:53,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 02:46:53,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 02:46:53,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array28_pattern.c [2024-11-16 02:46:53,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57095b4a/28050c7deedb4738acadcf9cbcf10327/FLAG066700f24 [2024-11-16 02:46:53,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57095b4a/28050c7deedb4738acadcf9cbcf10327 [2024-11-16 02:46:53,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 02:46:53,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 02:46:53,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 02:46:53,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 02:46:53,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 02:46:53,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:46:53" (1/1) ... [2024-11-16 02:46:53,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8920b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:53, skipping insertion in model container [2024-11-16 02:46:53,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:46:53" (1/1) ... [2024-11-16 02:46:54,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 02:46:54,198 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array28_pattern.c[1246,1259] [2024-11-16 02:46:54,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:46:54,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 02:46:54,265 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array28_pattern.c[1246,1259] [2024-11-16 02:46:54,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:46:54,306 INFO L204 MainTranslator]: Completed translation [2024-11-16 02:46:54,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54 WrapperNode [2024-11-16 02:46:54,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 02:46:54,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 02:46:54,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 02:46:54,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 02:46:54,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,344 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-16 02:46:54,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 02:46:54,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 02:46:54,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 02:46:54,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 02:46:54,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,363 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-16 02:46:54,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 02:46:54,383 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 02:46:54,383 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 02:46:54,384 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 02:46:54,384 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (1/1) ... [2024-11-16 02:46:54,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:46:54,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:54,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 02:46:54,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 02:46:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 02:46:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 02:46:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 02:46:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 02:46:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 02:46:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 02:46:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 02:46:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 02:46:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 02:46:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 02:46:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 02:46:54,529 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 02:46:54,530 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 02:46:54,629 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L42: call ULTIMATE.dealloc(main_~#array~0#1.base, main_~#array~0#1.offset);havoc main_~#array~0#1.base, main_~#array~0#1.offset; [2024-11-16 02:46:54,636 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 02:46:54,636 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 02:46:54,647 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 02:46:54,647 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 02:46:54,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:46:54 BoogieIcfgContainer [2024-11-16 02:46:54,648 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 02:46:54,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 02:46:54,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 02:46:54,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 02:46:54,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:46:53" (1/3) ... [2024-11-16 02:46:54,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25823664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:46:54, skipping insertion in model container [2024-11-16 02:46:54,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:54" (2/3) ... [2024-11-16 02:46:54,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25823664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:46:54, skipping insertion in model container [2024-11-16 02:46:54,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:46:54" (3/3) ... [2024-11-16 02:46:54,654 INFO L112 eAbstractionObserver]: Analyzing ICFG array28_pattern.c [2024-11-16 02:46:54,665 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 02:46:54,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 02:46:54,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 02:46:54,718 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c185677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 02:46:54,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 02:46:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.5) internal successors, (39), 27 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 02:46:54,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:54,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:54,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:54,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:54,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1794817851, now seen corresponding path program 1 times [2024-11-16 02:46:54,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:54,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637093731] [2024-11-16 02:46:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:54,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:54,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:54,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:54,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637093731] [2024-11-16 02:46:54,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637093731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:46:54,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:46:54,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 02:46:54,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873385524] [2024-11-16 02:46:54,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:46:54,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 02:46:54,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 02:46:54,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:46:54,903 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.5) internal successors, (39), 27 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:54,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:54,914 INFO L93 Difference]: Finished difference Result 52 states and 73 transitions. [2024-11-16 02:46:54,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 02:46:54,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 02:46:54,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:54,921 INFO L225 Difference]: With dead ends: 52 [2024-11-16 02:46:54,921 INFO L226 Difference]: Without dead ends: 23 [2024-11-16 02:46:54,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:46:54,926 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:54,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:46:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-16 02:46:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-16 02:46:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2024-11-16 02:46:54,951 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 11 [2024-11-16 02:46:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:54,951 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-16 02:46:54,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-16 02:46:54,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 02:46:54,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:54,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:54,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 02:46:54,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:54,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1847374729, now seen corresponding path program 1 times [2024-11-16 02:46:54,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:54,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168597604] [2024-11-16 02:46:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:54,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:55,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:55,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168597604] [2024-11-16 02:46:55,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168597604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:46:55,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:46:55,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 02:46:55,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139854661] [2024-11-16 02:46:55,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:46:55,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 02:46:55,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 02:46:55,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:46:55,142 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:55,166 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-11-16 02:46:55,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 02:46:55,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-16 02:46:55,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:55,166 INFO L225 Difference]: With dead ends: 33 [2024-11-16 02:46:55,167 INFO L226 Difference]: Without dead ends: 28 [2024-11-16 02:46:55,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:46:55,168 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:55,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:46:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-16 02:46:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-16 02:46:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2024-11-16 02:46:55,175 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 13 [2024-11-16 02:46:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:55,176 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2024-11-16 02:46:55,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-16 02:46:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-16 02:46:55,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:55,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:55,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 02:46:55,178 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:55,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:55,180 INFO L85 PathProgramCache]: Analyzing trace with hash -259238259, now seen corresponding path program 1 times [2024-11-16 02:46:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:55,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350874758] [2024-11-16 02:46:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 02:46:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350874758] [2024-11-16 02:46:55,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350874758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:46:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:46:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 02:46:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123701942] [2024-11-16 02:46:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:46:55,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 02:46:55,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 02:46:55,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:46:55,350 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:55,391 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2024-11-16 02:46:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 02:46:55,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-16 02:46:55,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:55,393 INFO L225 Difference]: With dead ends: 62 [2024-11-16 02:46:55,393 INFO L226 Difference]: Without dead ends: 44 [2024-11-16 02:46:55,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:46:55,394 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:55,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:46:55,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-16 02:46:55,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2024-11-16 02:46:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-11-16 02:46:55,398 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 20 [2024-11-16 02:46:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:55,399 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-11-16 02:46:55,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-11-16 02:46:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 02:46:55,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:55,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 02:46:55,400 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:55,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash -228046259, now seen corresponding path program 1 times [2024-11-16 02:46:55,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97144818] [2024-11-16 02:46:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:55,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:46:55,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:55,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97144818] [2024-11-16 02:46:55,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97144818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:46:55,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:46:55,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 02:46:55,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296852730] [2024-11-16 02:46:55,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:46:55,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 02:46:55,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:55,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 02:46:55,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:46:55,512 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:55,561 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2024-11-16 02:46:55,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 02:46:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-16 02:46:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:55,562 INFO L225 Difference]: With dead ends: 67 [2024-11-16 02:46:55,562 INFO L226 Difference]: Without dead ends: 43 [2024-11-16 02:46:55,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:46:55,564 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:55,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 40 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:46:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-16 02:46:55,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2024-11-16 02:46:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2024-11-16 02:46:55,569 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 25 [2024-11-16 02:46:55,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:55,569 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2024-11-16 02:46:55,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:55,570 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2024-11-16 02:46:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 02:46:55,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:55,571 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:55,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 02:46:55,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:55,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1676495211, now seen corresponding path program 1 times [2024-11-16 02:46:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017658304] [2024-11-16 02:46:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 02:46:55,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312376617] [2024-11-16 02:46:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:55,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:55,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:55,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:55,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 02:46:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:55,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-16 02:46:55,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:55,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 02:46:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:55,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:55,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-16 02:46:56,001 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 28 treesize of output 26 [2024-11-16 02:46:56,042 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:56,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:56,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017658304] [2024-11-16 02:46:56,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 02:46:56,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312376617] [2024-11-16 02:46:56,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312376617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:56,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 02:46:56,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2024-11-16 02:46:56,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144619777] [2024-11-16 02:46:56,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:56,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 02:46:56,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:56,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 02:46:56,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 02:46:56,046 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:56,202 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2024-11-16 02:46:56,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 02:46:56,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-16 02:46:56,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:56,204 INFO L225 Difference]: With dead ends: 68 [2024-11-16 02:46:56,204 INFO L226 Difference]: Without dead ends: 63 [2024-11-16 02:46:56,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-16 02:46:56,205 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 58 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:56,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 118 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:46:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-16 02:46:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2024-11-16 02:46:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 55 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2024-11-16 02:46:56,214 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 30 [2024-11-16 02:46:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:56,214 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2024-11-16 02:46:56,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2024-11-16 02:46:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-16 02:46:56,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:56,215 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:56,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 02:46:56,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:56,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:56,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:56,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1297888884, now seen corresponding path program 2 times [2024-11-16 02:46:56,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:56,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911281750] [2024-11-16 02:46:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:56,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:56,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911281750] [2024-11-16 02:46:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911281750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458157838] [2024-11-16 02:46:56,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:46:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:56,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:56,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 02:46:56,616 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:46:56,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:46:56,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:46:56,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:56,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:46:56,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458157838] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:56,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:46:56,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-16 02:46:56,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864345979] [2024-11-16 02:46:56,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:56,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 02:46:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:56,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 02:46:56,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 02:46:56,701 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:56,791 INFO L93 Difference]: Finished difference Result 173 states and 227 transitions. [2024-11-16 02:46:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 02:46:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-16 02:46:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:56,792 INFO L225 Difference]: With dead ends: 173 [2024-11-16 02:46:56,793 INFO L226 Difference]: Without dead ends: 132 [2024-11-16 02:46:56,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-16 02:46:56,794 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 32 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:56,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 119 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:46:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-16 02:46:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 118. [2024-11-16 02:46:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.3076923076923077) internal successors, (153), 117 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 153 transitions. [2024-11-16 02:46:56,805 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 153 transitions. Word has length 32 [2024-11-16 02:46:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:56,805 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 153 transitions. [2024-11-16 02:46:56,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 153 transitions. [2024-11-16 02:46:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 02:46:56,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:56,806 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:56,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 02:46:57,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 02:46:57,011 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 121436174, now seen corresponding path program 1 times [2024-11-16 02:46:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209203425] [2024-11-16 02:46:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:57,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:46:57,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209203425] [2024-11-16 02:46:57,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209203425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978452297] [2024-11-16 02:46:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:57,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:57,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:57,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:57,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 02:46:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:57,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:46:57,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:46:57,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:46:57,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978452297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:46:57,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:46:57,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-16 02:46:57,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066811975] [2024-11-16 02:46:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:46:57,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 02:46:57,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 02:46:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 02:46:57,247 INFO L87 Difference]: Start difference. First operand 118 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:57,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:57,288 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2024-11-16 02:46:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 02:46:57,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-16 02:46:57,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:57,289 INFO L225 Difference]: With dead ends: 234 [2024-11-16 02:46:57,289 INFO L226 Difference]: Without dead ends: 129 [2024-11-16 02:46:57,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 02:46:57,290 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:57,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:46:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-16 02:46:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 118. [2024-11-16 02:46:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.2905982905982907) internal successors, (151), 117 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 151 transitions. [2024-11-16 02:46:57,312 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 151 transitions. Word has length 36 [2024-11-16 02:46:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:57,312 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 151 transitions. [2024-11-16 02:46:57,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2024-11-16 02:46:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-16 02:46:57,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:57,313 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:57,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 02:46:57,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:57,518 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:57,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1921225581, now seen corresponding path program 1 times [2024-11-16 02:46:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:57,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622961476] [2024-11-16 02:46:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:46:57,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:57,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622961476] [2024-11-16 02:46:57,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622961476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:57,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918023267] [2024-11-16 02:46:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:57,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:57,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:57,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:57,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 02:46:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:57,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:46:57,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:46:57,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:46:57,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918023267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:57,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:46:57,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-16 02:46:57,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607831718] [2024-11-16 02:46:57,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:57,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 02:46:57,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:57,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 02:46:57,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-16 02:46:57,799 INFO L87 Difference]: Start difference. First operand 118 states and 151 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:58,066 INFO L93 Difference]: Finished difference Result 272 states and 355 transitions. [2024-11-16 02:46:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 02:46:58,067 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-16 02:46:58,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:58,068 INFO L225 Difference]: With dead ends: 272 [2024-11-16 02:46:58,068 INFO L226 Difference]: Without dead ends: 172 [2024-11-16 02:46:58,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2024-11-16 02:46:58,069 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 65 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:58,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 134 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:46:58,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-16 02:46:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 127. [2024-11-16 02:46:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 126 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 160 transitions. [2024-11-16 02:46:58,079 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 160 transitions. Word has length 37 [2024-11-16 02:46:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:58,079 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 160 transitions. [2024-11-16 02:46:58,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 160 transitions. [2024-11-16 02:46:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-16 02:46:58,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:58,080 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:58,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 02:46:58,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:58,281 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:58,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash 489529113, now seen corresponding path program 3 times [2024-11-16 02:46:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:58,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229503599] [2024-11-16 02:46:58,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:58,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:46:58,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229503599] [2024-11-16 02:46:58,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229503599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191309271] [2024-11-16 02:46:58,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:46:58,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:58,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:58,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:58,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 02:46:58,415 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 02:46:58,415 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:46:58,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:46:58,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:46:58,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:46:58,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191309271] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:58,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:46:58,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-16 02:46:58,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133258400] [2024-11-16 02:46:58,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:58,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 02:46:58,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:58,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 02:46:58,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-16 02:46:58,624 INFO L87 Difference]: Start difference. First operand 127 states and 160 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:58,838 INFO L93 Difference]: Finished difference Result 278 states and 348 transitions. [2024-11-16 02:46:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 02:46:58,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-16 02:46:58,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:58,840 INFO L225 Difference]: With dead ends: 278 [2024-11-16 02:46:58,840 INFO L226 Difference]: Without dead ends: 199 [2024-11-16 02:46:58,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2024-11-16 02:46:58,841 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 115 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:58,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 117 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:46:58,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-16 02:46:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 131. [2024-11-16 02:46:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 130 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 163 transitions. [2024-11-16 02:46:58,856 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 163 transitions. Word has length 37 [2024-11-16 02:46:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:58,857 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 163 transitions. [2024-11-16 02:46:58,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 163 transitions. [2024-11-16 02:46:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 02:46:58,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:58,861 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:58,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 02:46:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:59,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:59,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1644284232, now seen corresponding path program 2 times [2024-11-16 02:46:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001747621] [2024-11-16 02:46:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:46:59,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001747621] [2024-11-16 02:46:59,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001747621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639602788] [2024-11-16 02:46:59,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:46:59,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:59,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:59,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:59,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 02:46:59,206 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:46:59,206 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:46:59,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:46:59,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:46:59,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 02:46:59,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639602788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:59,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:46:59,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2024-11-16 02:46:59,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242012446] [2024-11-16 02:46:59,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:59,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 02:46:59,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:59,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 02:46:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:46:59,373 INFO L87 Difference]: Start difference. First operand 131 states and 163 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:46:59,556 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2024-11-16 02:46:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 02:46:59,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-16 02:46:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:46:59,557 INFO L225 Difference]: With dead ends: 224 [2024-11-16 02:46:59,557 INFO L226 Difference]: Without dead ends: 113 [2024-11-16 02:46:59,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-11-16 02:46:59,558 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 79 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:46:59,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 92 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:46:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-16 02:46:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 97. [2024-11-16 02:46:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.1875) internal successors, (114), 96 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2024-11-16 02:46:59,565 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 40 [2024-11-16 02:46:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:46:59,566 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2024-11-16 02:46:59,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:46:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2024-11-16 02:46:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-16 02:46:59,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:46:59,567 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:46:59,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 02:46:59,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:59,771 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:46:59,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:46:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1649156560, now seen corresponding path program 1 times [2024-11-16 02:46:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:46:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540238084] [2024-11-16 02:46:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:46:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:46:59,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:46:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540238084] [2024-11-16 02:46:59,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540238084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:46:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338448861] [2024-11-16 02:46:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:46:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:46:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:46:59,857 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:46:59,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 02:46:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:46:59,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:46:59,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:46:59,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:46:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 02:46:59,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338448861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:46:59,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:46:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-16 02:46:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601688234] [2024-11-16 02:46:59,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:46:59,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 02:46:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:46:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 02:46:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 02:46:59,990 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:00,076 INFO L93 Difference]: Finished difference Result 107 states and 123 transitions. [2024-11-16 02:47:00,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 02:47:00,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-16 02:47:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:00,078 INFO L225 Difference]: With dead ends: 107 [2024-11-16 02:47:00,078 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 02:47:00,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-16 02:47:00,078 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 45 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:00,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 114 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:47:00,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 02:47:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2024-11-16 02:47:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 76 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2024-11-16 02:47:00,083 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 44 [2024-11-16 02:47:00,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:00,083 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2024-11-16 02:47:00,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2024-11-16 02:47:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 02:47:00,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:00,084 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:00,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 02:47:00,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:00,287 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:00,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:00,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1666919698, now seen corresponding path program 2 times [2024-11-16 02:47:00,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:00,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702193821] [2024-11-16 02:47:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 02:47:00,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:00,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702193821] [2024-11-16 02:47:00,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702193821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:47:00,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961090796] [2024-11-16 02:47:00,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:47:00,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:00,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:00,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:00,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 02:47:00,437 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:47:00,438 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:00,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 02:47:00,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-16 02:47:00,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-16 02:47:00,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961090796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:00,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:47:00,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 15 [2024-11-16 02:47:00,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482860884] [2024-11-16 02:47:00,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:00,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 02:47:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 02:47:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-16 02:47:00,545 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:00,778 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2024-11-16 02:47:00,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 02:47:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-16 02:47:00,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:00,779 INFO L225 Difference]: With dead ends: 177 [2024-11-16 02:47:00,780 INFO L226 Difference]: Without dead ends: 113 [2024-11-16 02:47:00,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2024-11-16 02:47:00,780 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 68 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:00,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 158 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:47:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-16 02:47:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2024-11-16 02:47:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.1318681318681318) internal successors, (103), 91 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2024-11-16 02:47:00,785 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 59 [2024-11-16 02:47:00,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:00,785 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2024-11-16 02:47:00,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:00,785 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2024-11-16 02:47:00,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 02:47:00,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:00,786 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:00,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 02:47:00,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 02:47:00,987 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:00,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash -140775780, now seen corresponding path program 3 times [2024-11-16 02:47:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:00,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697468606] [2024-11-16 02:47:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 02:47:01,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801091176] [2024-11-16 02:47:01,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:47:01,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:01,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:01,005 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:01,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 02:47:01,097 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-16 02:47:01,097 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:01,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-16 02:47:01,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:01,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 02:47:01,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-16 02:47:01,368 INFO L349 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2024-11-16 02:47:01,368 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 3 case distinctions, treesize of input 30 treesize of output 40 [2024-11-16 02:47:01,527 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-11-16 02:47:01,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 58 [2024-11-16 02:47:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:47:02,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:03,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 188 [2024-11-16 02:47:03,970 INFO L349 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2024-11-16 02:47:03,972 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 2287850 treesize of output 2111722 [2024-11-16 02:47:08,186 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:47:08,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697468606] [2024-11-16 02:47:08,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 02:47:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801091176] [2024-11-16 02:47:08,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801091176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:08,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 02:47:08,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2024-11-16 02:47:08,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346942323] [2024-11-16 02:47:08,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:08,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-16 02:47:08,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:08,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-16 02:47:08,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 02:47:08,189 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 42 states, 42 states have (on average 2.5714285714285716) internal successors, (108), 42 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:35,630 INFO L93 Difference]: Finished difference Result 229 states and 256 transitions. [2024-11-16 02:47:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-16 02:47:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.5714285714285716) internal successors, (108), 42 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 02:47:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:35,631 INFO L225 Difference]: With dead ends: 229 [2024-11-16 02:47:35,631 INFO L226 Difference]: Without dead ends: 192 [2024-11-16 02:47:35,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2094 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=1309, Invalid=6173, Unknown=0, NotChecked=0, Total=7482 [2024-11-16 02:47:35,633 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 228 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:35,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 494 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 02:47:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-16 02:47:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2024-11-16 02:47:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.1139240506329113) internal successors, (176), 158 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:35,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 176 transitions. [2024-11-16 02:47:35,648 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 176 transitions. Word has length 60 [2024-11-16 02:47:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:35,648 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 176 transitions. [2024-11-16 02:47:35,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.5714285714285716) internal successors, (108), 42 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 176 transitions. [2024-11-16 02:47:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 02:47:35,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:35,649 INFO L215 NwaCegarLoop]: trace histogram [11, 8, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:35,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-16 02:47:35,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 02:47:35,854 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:35,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash -671778871, now seen corresponding path program 4 times [2024-11-16 02:47:35,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:35,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525576906] [2024-11-16 02:47:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:35,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 70 proven. 66 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-16 02:47:35,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:35,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525576906] [2024-11-16 02:47:35,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525576906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:47:35,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201164411] [2024-11-16 02:47:35,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 02:47:35,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:35,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:35,985 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:35,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 02:47:36,044 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 02:47:36,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:36,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 02:47:36,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 98 proven. 37 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-16 02:47:36,174 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 80 proven. 55 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-16 02:47:36,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201164411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:36,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:47:36,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-16 02:47:36,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327172873] [2024-11-16 02:47:36,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:36,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 02:47:36,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 02:47:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-16 02:47:36,267 INFO L87 Difference]: Start difference. First operand 159 states and 176 transitions. Second operand has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:36,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:36,489 INFO L93 Difference]: Finished difference Result 345 states and 384 transitions. [2024-11-16 02:47:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 02:47:36,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-16 02:47:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:36,490 INFO L225 Difference]: With dead ends: 345 [2024-11-16 02:47:36,490 INFO L226 Difference]: Without dead ends: 180 [2024-11-16 02:47:36,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2024-11-16 02:47:36,491 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 56 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:36,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 194 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:47:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-16 02:47:36,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 146. [2024-11-16 02:47:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.110344827586207) internal successors, (161), 145 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 161 transitions. [2024-11-16 02:47:36,501 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 161 transitions. Word has length 73 [2024-11-16 02:47:36,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:36,501 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 161 transitions. [2024-11-16 02:47:36,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 161 transitions. [2024-11-16 02:47:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 02:47:36,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:36,502 INFO L215 NwaCegarLoop]: trace histogram [12, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:36,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-16 02:47:36,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 02:47:36,703 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:36,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:36,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2048766341, now seen corresponding path program 5 times [2024-11-16 02:47:36,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108429332] [2024-11-16 02:47:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:36,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 30 proven. 103 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-16 02:47:36,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:36,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108429332] [2024-11-16 02:47:36,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108429332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:47:36,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515149295] [2024-11-16 02:47:36,817 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 02:47:36,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:36,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:36,821 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:36,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 02:47:36,916 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-16 02:47:36,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:36,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-16 02:47:36,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 65 proven. 147 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 02:47:37,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 133 proven. 79 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 02:47:37,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515149295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:37,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:47:37,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 27 [2024-11-16 02:47:37,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12833771] [2024-11-16 02:47:37,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:37,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 02:47:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 02:47:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2024-11-16 02:47:37,274 INFO L87 Difference]: Start difference. First operand 146 states and 161 transitions. Second operand has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:37,876 INFO L93 Difference]: Finished difference Result 281 states and 322 transitions. [2024-11-16 02:47:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-16 02:47:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-16 02:47:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:37,877 INFO L225 Difference]: With dead ends: 281 [2024-11-16 02:47:37,877 INFO L226 Difference]: Without dead ends: 191 [2024-11-16 02:47:37,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=912, Invalid=3248, Unknown=0, NotChecked=0, Total=4160 [2024-11-16 02:47:37,878 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 231 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:37,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 179 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 02:47:37,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-16 02:47:37,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 122. [2024-11-16 02:47:37,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.1239669421487604) internal successors, (136), 121 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:37,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 136 transitions. [2024-11-16 02:47:37,889 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 136 transitions. Word has length 88 [2024-11-16 02:47:37,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:37,889 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 136 transitions. [2024-11-16 02:47:37,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:37,889 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 136 transitions. [2024-11-16 02:47:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 02:47:37,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:37,890 INFO L215 NwaCegarLoop]: trace histogram [12, 9, 9, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:37,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-16 02:47:38,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 02:47:38,090 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:38,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:38,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2023227291, now seen corresponding path program 6 times [2024-11-16 02:47:38,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:38,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572383130] [2024-11-16 02:47:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:38,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 8 proven. 136 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-16 02:47:38,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:38,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572383130] [2024-11-16 02:47:38,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572383130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:47:38,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288081801] [2024-11-16 02:47:38,232 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-16 02:47:38,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:38,234 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:38,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-16 02:47:38,307 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-16 02:47:38,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:38,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 02:47:38,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 15 proven. 129 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-16 02:47:38,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 15 proven. 129 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-16 02:47:38,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288081801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:38,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:47:38,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-16 02:47:38,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970768424] [2024-11-16 02:47:38,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:38,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 02:47:38,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 02:47:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:47:38,534 INFO L87 Difference]: Start difference. First operand 122 states and 136 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:38,745 INFO L93 Difference]: Finished difference Result 150 states and 166 transitions. [2024-11-16 02:47:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 02:47:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 02:47:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:38,746 INFO L225 Difference]: With dead ends: 150 [2024-11-16 02:47:38,746 INFO L226 Difference]: Without dead ends: 145 [2024-11-16 02:47:38,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 173 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2024-11-16 02:47:38,747 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 81 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:38,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 106 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:47:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-16 02:47:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 133. [2024-11-16 02:47:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.121212121212121) internal successors, (148), 132 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2024-11-16 02:47:38,761 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 92 [2024-11-16 02:47:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:38,761 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2024-11-16 02:47:38,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2024-11-16 02:47:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 02:47:38,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:38,761 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:38,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-16 02:47:38,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 02:47:38,966 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:38,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:38,967 INFO L85 PathProgramCache]: Analyzing trace with hash -128770069, now seen corresponding path program 7 times [2024-11-16 02:47:38,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:38,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050400453] [2024-11-16 02:47:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 54 proven. 140 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-16 02:47:39,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:47:39,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050400453] [2024-11-16 02:47:39,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050400453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:47:39,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645592597] [2024-11-16 02:47:39,178 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-16 02:47:39,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:39,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:39,179 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:39,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-16 02:47:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:47:39,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 02:47:39,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 184 proven. 10 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-16 02:47:39,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 101 proven. 93 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-16 02:47:39,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645592597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:47:39,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:47:39,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-16 02:47:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544933932] [2024-11-16 02:47:39,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:47:39,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 02:47:39,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:47:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 02:47:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2024-11-16 02:47:39,431 INFO L87 Difference]: Start difference. First operand 133 states and 148 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:47:39,608 INFO L93 Difference]: Finished difference Result 253 states and 286 transitions. [2024-11-16 02:47:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 02:47:39,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-16 02:47:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:47:39,613 INFO L225 Difference]: With dead ends: 253 [2024-11-16 02:47:39,613 INFO L226 Difference]: Without dead ends: 153 [2024-11-16 02:47:39,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2024-11-16 02:47:39,613 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 63 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:47:39,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 129 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:47:39,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-16 02:47:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 123. [2024-11-16 02:47:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.0819672131147542) internal successors, (132), 122 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2024-11-16 02:47:39,634 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 103 [2024-11-16 02:47:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:47:39,637 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2024-11-16 02:47:39,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 02:47:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2024-11-16 02:47:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 02:47:39,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:47:39,638 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:47:39,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-16 02:47:39,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 02:47:39,839 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:47:39,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:47:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1842169388, now seen corresponding path program 8 times [2024-11-16 02:47:39,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:47:39,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010931377] [2024-11-16 02:47:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:47:39,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:47:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 02:47:39,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644449248] [2024-11-16 02:47:39,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:47:39,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:47:39,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:47:39,879 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:47:39,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-16 02:47:40,066 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:47:40,066 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:47:40,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 134 conjuncts are in the unsatisfiable core [2024-11-16 02:47:40,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:47:40,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 02:47:40,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-16 02:47:40,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:40,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2024-11-16 02:47:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:40,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-16 02:47:40,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:40,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 58 [2024-11-16 02:47:40,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:40,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:40,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 74 [2024-11-16 02:47:41,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:41,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 86 [2024-11-16 02:47:41,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:41,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 83 treesize of output 100 [2024-11-16 02:47:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:47:41,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 02:47:41,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 114 [2024-11-16 02:47:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:47:43,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:47:55,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1233 treesize of output 1215