./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 64bit --witnessprinter.graph.data.programhash 2d87d8de52f1a4a115f3d59c41642636cbe051626760d0d21cd05c9af9745fe9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:17:08,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:17:08,250 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:17:08,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:17:08,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:17:08,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:17:08,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:17:08,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:17:08,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:17:08,281 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:17:08,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:17:08,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:17:08,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:17:08,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:17:08,283 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:17:08,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:17:08,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:17:08,284 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:17:08,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:17:08,285 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:17:08,286 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d87d8de52f1a4a115f3d59c41642636cbe051626760d0d21cd05c9af9745fe9 [2025-02-07 23:17:08,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:17:08,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:17:08,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:17:08,582 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:17:08,583 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:17:08,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c [2025-02-07 23:17:09,801 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ea193a8b/3d24cef607ca4a7592680e9dcbb67b2a/FLAG4dc5eb045 [2025-02-07 23:17:10,219 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:17:10,220 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c [2025-02-07 23:17:10,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ea193a8b/3d24cef607ca4a7592680e9dcbb67b2a/FLAG4dc5eb045 [2025-02-07 23:17:10,403 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ea193a8b/3d24cef607ca4a7592680e9dcbb67b2a [2025-02-07 23:17:10,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:17:10,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:17:10,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:17:10,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:17:10,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:17:10,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:17:10" (1/1) ... [2025-02-07 23:17:10,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d41fce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:10, skipping insertion in model container [2025-02-07 23:17:10,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:17:10" (1/1) ... [2025-02-07 23:17:10,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:17:10,630 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c[1176,1189] [2025-02-07 23:17:10,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:17:11,003 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:17:11,011 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.6.prop1-func-interl.c[1176,1189] [2025-02-07 23:17:11,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:17:11,284 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:17:11,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11 WrapperNode [2025-02-07 23:17:11,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:17:11,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:17:11,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:17:11,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:17:11,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:11,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,156 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9722 [2025-02-07 23:17:12,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:17:12,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:17:12,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:17:12,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:17:12,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,601 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:17:12,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,900 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:12,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:13,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:13,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:13,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:17:13,254 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:17:13,254 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:17:13,256 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:17:13,257 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (1/1) ... [2025-02-07 23:17:13,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:17:13,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:17:13,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:17:13,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:17:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:17:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:17:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:17:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:17:13,756 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:17:13,758 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:17:25,379 INFO L? ?]: Removed 5377 outVars from TransFormulas that were not future-live. [2025-02-07 23:17:25,379 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:17:25,599 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:17:25,599 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:17:25,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:17:25 BoogieIcfgContainer [2025-02-07 23:17:25,600 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:17:25,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:17:25,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:17:25,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:17:25,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:17:10" (1/3) ... [2025-02-07 23:17:25,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5b9524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:17:25, skipping insertion in model container [2025-02-07 23:17:25,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:17:11" (2/3) ... [2025-02-07 23:17:25,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5b9524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:17:25, skipping insertion in model container [2025-02-07 23:17:25,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:17:25" (3/3) ... [2025-02-07 23:17:25,609 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.iprotocol.6.prop1-func-interl.c [2025-02-07 23:17:25,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:17:25,623 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.iprotocol.6.prop1-func-interl.c that has 1 procedures, 3360 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:17:25,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:17:25,720 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;@1ff052ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:17:25,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:17:25,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 3360 states, 3358 states have (on average 1.5023823704586063) internal successors, (5045), 3359 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-02-07 23:17:25,741 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:25,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:25,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:25,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash 202867064, now seen corresponding path program 1 times [2025-02-07 23:17:25,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:25,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867181801] [2025-02-07 23:17:25,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:25,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-07 23:17:26,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-07 23:17:26,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:26,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:26,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867181801] [2025-02-07 23:17:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867181801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:26,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:17:26,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944459568] [2025-02-07 23:17:26,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:26,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:17:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:26,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:17:26,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:17:26,746 INFO L87 Difference]: Start difference. First operand has 3360 states, 3358 states have (on average 1.5023823704586063) internal successors, (5045), 3359 states have internal predecessors, (5045), 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 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:28,323 INFO L93 Difference]: Finished difference Result 6495 states and 9755 transitions. [2025-02-07 23:17:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:17:28,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2025-02-07 23:17:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:28,351 INFO L225 Difference]: With dead ends: 6495 [2025-02-07 23:17:28,352 INFO L226 Difference]: Without dead ends: 3360 [2025-02-07 23:17:28,362 INFO L434 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 [2025-02-07 23:17:28,367 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 8407 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12613 SdHoareTripleChecker+Invalid, 2512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:28,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12613 Invalid, 2512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-07 23:17:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2025-02-07 23:17:28,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3360. [2025-02-07 23:17:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3359 states have (on average 1.5016373920809765) internal successors, (5044), 3359 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 5044 transitions. [2025-02-07 23:17:28,479 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 5044 transitions. Word has length 162 [2025-02-07 23:17:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:28,480 INFO L471 AbstractCegarLoop]: Abstraction has 3360 states and 5044 transitions. [2025-02-07 23:17:28,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 5044 transitions. [2025-02-07 23:17:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-02-07 23:17:28,482 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:28,482 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:17:28,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1998596148, now seen corresponding path program 1 times [2025-02-07 23:17:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075781524] [2025-02-07 23:17:28,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:28,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-07 23:17:28,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-07 23:17:28,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:28,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:28,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:28,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075781524] [2025-02-07 23:17:28,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075781524] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:28,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:28,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:17:28,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784284533] [2025-02-07 23:17:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:28,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:17:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:28,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:17:28,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:17:28,800 INFO L87 Difference]: Start difference. First operand 3360 states and 5044 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 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) [2025-02-07 23:17:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:30,194 INFO L93 Difference]: Finished difference Result 6497 states and 9754 transitions. [2025-02-07 23:17:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:17:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 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) Word has length 163 [2025-02-07 23:17:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:30,206 INFO L225 Difference]: With dead ends: 6497 [2025-02-07 23:17:30,206 INFO L226 Difference]: Without dead ends: 3362 [2025-02-07 23:17:30,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:17:30,211 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 8404 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12610 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:30,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12610 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-07 23:17:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2025-02-07 23:17:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3362. [2025-02-07 23:17:30,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3361 states have (on average 1.5013388872359417) internal successors, (5046), 3361 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 5046 transitions. [2025-02-07 23:17:30,327 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 5046 transitions. Word has length 163 [2025-02-07 23:17:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:30,329 INFO L471 AbstractCegarLoop]: Abstraction has 3362 states and 5046 transitions. [2025-02-07 23:17:30,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 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) [2025-02-07 23:17:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 5046 transitions. [2025-02-07 23:17:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-07 23:17:30,332 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:30,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:30,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:17:30,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:30,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash -536514317, now seen corresponding path program 1 times [2025-02-07 23:17:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:30,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819540928] [2025-02-07 23:17:30,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:30,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-07 23:17:30,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-07 23:17:30,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:30,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:30,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819540928] [2025-02-07 23:17:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819540928] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:30,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:17:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334515360] [2025-02-07 23:17:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:30,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:17:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:30,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:17:30,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:17:30,751 INFO L87 Difference]: Start difference. First operand 3362 states and 5046 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:32,044 INFO L93 Difference]: Finished difference Result 6501 states and 9758 transitions. [2025-02-07 23:17:32,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:17:32,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 164 [2025-02-07 23:17:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:32,056 INFO L225 Difference]: With dead ends: 6501 [2025-02-07 23:17:32,056 INFO L226 Difference]: Without dead ends: 3364 [2025-02-07 23:17:32,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:17:32,063 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12605 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:32,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12605 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-07 23:17:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2025-02-07 23:17:32,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3364. [2025-02-07 23:17:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3363 states have (on average 1.5010407374368124) internal successors, (5048), 3363 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:32,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 5048 transitions. [2025-02-07 23:17:32,113 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 5048 transitions. Word has length 164 [2025-02-07 23:17:32,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:32,113 INFO L471 AbstractCegarLoop]: Abstraction has 3364 states and 5048 transitions. [2025-02-07 23:17:32,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:32,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 5048 transitions. [2025-02-07 23:17:32,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-07 23:17:32,114 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:32,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:32,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:17:32,115 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:32,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1858674119, now seen corresponding path program 1 times [2025-02-07 23:17:32,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713681487] [2025-02-07 23:17:32,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:32,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:32,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-07 23:17:32,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-07 23:17:32,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:32,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:32,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713681487] [2025-02-07 23:17:32,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713681487] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:32,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:32,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:17:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267709627] [2025-02-07 23:17:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:32,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:17:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:32,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:17:32,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:17:32,415 INFO L87 Difference]: Start difference. First operand 3364 states and 5048 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:36,555 INFO L93 Difference]: Finished difference Result 9630 states and 14452 transitions. [2025-02-07 23:17:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:17:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 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 165 [2025-02-07 23:17:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:36,581 INFO L225 Difference]: With dead ends: 9630 [2025-02-07 23:17:36,581 INFO L226 Difference]: Without dead ends: 6491 [2025-02-07 23:17:36,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:17:36,600 INFO L435 NwaCegarLoop]: 3234 mSDtfsCounter, 4870 mSDsluCounter, 9486 mSDsCounter, 0 mSdLazyCounter, 7111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 12720 SdHoareTripleChecker+Invalid, 7111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:36,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 12720 Invalid, 7111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7111 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-07 23:17:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6491 states. [2025-02-07 23:17:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6491 to 3447. [2025-02-07 23:17:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3447 states, 3446 states have (on average 1.5008705745792223) internal successors, (5172), 3446 states have internal predecessors, (5172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3447 states to 3447 states and 5172 transitions. [2025-02-07 23:17:36,703 INFO L78 Accepts]: Start accepts. Automaton has 3447 states and 5172 transitions. Word has length 165 [2025-02-07 23:17:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:36,703 INFO L471 AbstractCegarLoop]: Abstraction has 3447 states and 5172 transitions. [2025-02-07 23:17:36,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:36,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3447 states and 5172 transitions. [2025-02-07 23:17:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-02-07 23:17:36,704 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:36,704 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:36,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:17:36,705 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:36,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2066579541, now seen corresponding path program 1 times [2025-02-07 23:17:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865896590] [2025-02-07 23:17:36,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:36,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-02-07 23:17:36,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-02-07 23:17:36,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:36,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:37,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865896590] [2025-02-07 23:17:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865896590] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:37,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:37,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-07 23:17:37,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538511924] [2025-02-07 23:17:37,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:37,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-07 23:17:37,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:37,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-07 23:17:37,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-07 23:17:37,051 INFO L87 Difference]: Start difference. First operand 3447 states and 5172 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:39,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:39,862 INFO L93 Difference]: Finished difference Result 9104 states and 13664 transitions. [2025-02-07 23:17:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:17:39,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 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 166 [2025-02-07 23:17:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:39,877 INFO L225 Difference]: With dead ends: 9104 [2025-02-07 23:17:39,877 INFO L226 Difference]: Without dead ends: 5965 [2025-02-07 23:17:39,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-07 23:17:39,883 INFO L435 NwaCegarLoop]: 4200 mSDtfsCounter, 4088 mSDsluCounter, 20698 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 24898 SdHoareTripleChecker+Invalid, 5019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:39,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 24898 Invalid, 5019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5017 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-07 23:17:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2025-02-07 23:17:39,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 3448. [2025-02-07 23:17:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3447 states have (on average 1.5007252683492893) internal successors, (5173), 3447 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:39,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 5173 transitions. [2025-02-07 23:17:39,952 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 5173 transitions. Word has length 166 [2025-02-07 23:17:39,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:39,953 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 5173 transitions. [2025-02-07 23:17:39,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 5173 transitions. [2025-02-07 23:17:40,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2025-02-07 23:17:40,003 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:40,004 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:40,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:17:40,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:40,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1589336617, now seen corresponding path program 1 times [2025-02-07 23:17:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:40,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428951790] [2025-02-07 23:17:40,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:40,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1710 statements into 1 equivalence classes. [2025-02-07 23:17:41,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1710 of 1710 statements. [2025-02-07 23:17:41,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:41,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:44,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:44,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428951790] [2025-02-07 23:17:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428951790] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:44,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:44,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:17:44,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41668006] [2025-02-07 23:17:44,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:44,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:17:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:44,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:17:44,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:44,621 INFO L87 Difference]: Start difference. First operand 3448 states and 5173 transitions. Second operand has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:45,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:45,596 INFO L93 Difference]: Finished difference Result 6588 states and 9886 transitions. [2025-02-07 23:17:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:17:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 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 1710 [2025-02-07 23:17:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:45,609 INFO L225 Difference]: With dead ends: 6588 [2025-02-07 23:17:45,609 INFO L226 Difference]: Without dead ends: 3449 [2025-02-07 23:17:45,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:45,613 INFO L435 NwaCegarLoop]: 4207 mSDtfsCounter, 0 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:45,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8409 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:17:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2025-02-07 23:17:45,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3449. [2025-02-07 23:17:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 3448 states have (on average 1.5005800464037122) internal successors, (5174), 3448 states have internal predecessors, (5174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 5174 transitions. [2025-02-07 23:17:45,656 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 5174 transitions. Word has length 1710 [2025-02-07 23:17:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:45,657 INFO L471 AbstractCegarLoop]: Abstraction has 3449 states and 5174 transitions. [2025-02-07 23:17:45,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 5174 transitions. [2025-02-07 23:17:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2025-02-07 23:17:45,673 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:45,674 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:45,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:17:45,675 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:45,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash -151068150, now seen corresponding path program 1 times [2025-02-07 23:17:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:45,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228176512] [2025-02-07 23:17:45,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:45,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:45,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1710 statements into 1 equivalence classes. [2025-02-07 23:17:46,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1710 of 1710 statements. [2025-02-07 23:17:46,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:46,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228176512] [2025-02-07 23:17:49,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228176512] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:49,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:49,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:17:49,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695805038] [2025-02-07 23:17:49,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:49,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:17:49,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:49,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:17:49,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:49,393 INFO L87 Difference]: Start difference. First operand 3449 states and 5174 transitions. Second operand has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:50,245 INFO L93 Difference]: Finished difference Result 6590 states and 9888 transitions. [2025-02-07 23:17:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:17:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 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 1710 [2025-02-07 23:17:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:50,254 INFO L225 Difference]: With dead ends: 6590 [2025-02-07 23:17:50,254 INFO L226 Difference]: Without dead ends: 3450 [2025-02-07 23:17:50,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:50,257 INFO L435 NwaCegarLoop]: 4207 mSDtfsCounter, 0 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:50,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8409 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-07 23:17:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2025-02-07 23:17:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3450. [2025-02-07 23:17:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 3449 states have (on average 1.5004349086691795) internal successors, (5175), 3449 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 5175 transitions. [2025-02-07 23:17:50,303 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 5175 transitions. Word has length 1710 [2025-02-07 23:17:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:50,305 INFO L471 AbstractCegarLoop]: Abstraction has 3450 states and 5175 transitions. [2025-02-07 23:17:50,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 5175 transitions. [2025-02-07 23:17:50,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2025-02-07 23:17:50,320 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:50,321 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:50,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-07 23:17:50,321 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:50,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:50,322 INFO L85 PathProgramCache]: Analyzing trace with hash 577515913, now seen corresponding path program 1 times [2025-02-07 23:17:50,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:50,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179284121] [2025-02-07 23:17:50,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:50,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:50,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1710 statements into 1 equivalence classes. [2025-02-07 23:17:51,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1710 of 1710 statements. [2025-02-07 23:17:51,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:51,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:52,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:52,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179284121] [2025-02-07 23:17:52,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179284121] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:52,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:52,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:17:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631146393] [2025-02-07 23:17:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:52,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:17:52,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:52,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:17:52,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:52,874 INFO L87 Difference]: Start difference. First operand 3450 states and 5175 transitions. Second operand has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:53,892 INFO L93 Difference]: Finished difference Result 6592 states and 9890 transitions. [2025-02-07 23:17:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:17:53,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 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 1710 [2025-02-07 23:17:53,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:53,905 INFO L225 Difference]: With dead ends: 6592 [2025-02-07 23:17:53,908 INFO L226 Difference]: Without dead ends: 3451 [2025-02-07 23:17:53,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:53,914 INFO L435 NwaCegarLoop]: 4207 mSDtfsCounter, 0 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:53,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8409 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 23:17:53,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2025-02-07 23:17:53,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3451. [2025-02-07 23:17:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3450 states have (on average 1.5002898550724637) internal successors, (5176), 3450 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 5176 transitions. [2025-02-07 23:17:53,995 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 5176 transitions. Word has length 1710 [2025-02-07 23:17:53,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:53,996 INFO L471 AbstractCegarLoop]: Abstraction has 3451 states and 5176 transitions. [2025-02-07 23:17:53,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:53,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 5176 transitions. [2025-02-07 23:17:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2025-02-07 23:17:54,032 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:54,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:54,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-07 23:17:54,033 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:54,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2036160726, now seen corresponding path program 1 times [2025-02-07 23:17:54,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:54,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568386421] [2025-02-07 23:17:54,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:54,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1710 statements into 1 equivalence classes. [2025-02-07 23:17:54,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1710 of 1710 statements. [2025-02-07 23:17:54,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:54,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:17:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:17:56,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:17:56,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568386421] [2025-02-07 23:17:56,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568386421] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:17:56,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:17:56,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:17:56,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083219318] [2025-02-07 23:17:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:17:56,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:17:56,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:17:56,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:17:56,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:56,650 INFO L87 Difference]: Start difference. First operand 3451 states and 5176 transitions. Second operand has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:57,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:17:57,605 INFO L93 Difference]: Finished difference Result 6594 states and 9892 transitions. [2025-02-07 23:17:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:17:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 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 1710 [2025-02-07 23:17:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:17:57,611 INFO L225 Difference]: With dead ends: 6594 [2025-02-07 23:17:57,612 INFO L226 Difference]: Without dead ends: 3452 [2025-02-07 23:17:57,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:17:57,617 INFO L435 NwaCegarLoop]: 4207 mSDtfsCounter, 0 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:17:57,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8409 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:17:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2025-02-07 23:17:57,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 3452. [2025-02-07 23:17:57,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.5001448855404231) internal successors, (5177), 3451 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 5177 transitions. [2025-02-07 23:17:57,660 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 5177 transitions. Word has length 1710 [2025-02-07 23:17:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:17:57,660 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 5177 transitions. [2025-02-07 23:17:57,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:17:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 5177 transitions. [2025-02-07 23:17:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2025-02-07 23:17:57,676 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:17:57,677 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:17:57,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-07 23:17:57,678 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:17:57,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:17:57,682 INFO L85 PathProgramCache]: Analyzing trace with hash 368013545, now seen corresponding path program 1 times [2025-02-07 23:17:57,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:17:57,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311402223] [2025-02-07 23:17:57,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:17:57,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:17:57,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1710 statements into 1 equivalence classes. [2025-02-07 23:17:58,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1710 of 1710 statements. [2025-02-07 23:17:58,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:17:58,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:00,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:00,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311402223] [2025-02-07 23:18:00,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311402223] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:00,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:00,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373604753] [2025-02-07 23:18:00,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:00,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:18:00,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:00,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:18:00,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:18:00,343 INFO L87 Difference]: Start difference. First operand 3452 states and 5177 transitions. Second operand has 4 states, 4 states have (on average 427.5) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:01,380 INFO L93 Difference]: Finished difference Result 6595 states and 9892 transitions. [2025-02-07 23:18:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:18:01,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 427.5) internal successors, (1710), 3 states have internal predecessors, (1710), 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 1710 [2025-02-07 23:18:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:01,385 INFO L225 Difference]: With dead ends: 6595 [2025-02-07 23:18:01,385 INFO L226 Difference]: Without dead ends: 3452 [2025-02-07 23:18:01,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:18:01,387 INFO L435 NwaCegarLoop]: 4175 mSDtfsCounter, 4853 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 8347 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:01,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 8347 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 23:18:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2025-02-07 23:18:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 3452. [2025-02-07 23:18:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.4998551144595769) internal successors, (5176), 3451 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 5176 transitions. [2025-02-07 23:18:01,428 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 5176 transitions. Word has length 1710 [2025-02-07 23:18:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:01,429 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 5176 transitions. [2025-02-07 23:18:01,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 427.5) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 5176 transitions. [2025-02-07 23:18:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2025-02-07 23:18:01,443 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:01,444 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:01,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-07 23:18:01,444 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:01,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash 612473418, now seen corresponding path program 1 times [2025-02-07 23:18:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225171535] [2025-02-07 23:18:01,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:01,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1711 statements into 1 equivalence classes. [2025-02-07 23:18:02,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1711 of 1711 statements. [2025-02-07 23:18:02,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:02,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:03,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:03,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225171535] [2025-02-07 23:18:03,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225171535] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:03,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:03,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:03,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205046694] [2025-02-07 23:18:03,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:03,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:03,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:03,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:03,686 INFO L87 Difference]: Start difference. First operand 3452 states and 5176 transitions. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:04,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:04,659 INFO L93 Difference]: Finished difference Result 6596 states and 9892 transitions. [2025-02-07 23:18:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 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 1711 [2025-02-07 23:18:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:04,665 INFO L225 Difference]: With dead ends: 6596 [2025-02-07 23:18:04,665 INFO L226 Difference]: Without dead ends: 3453 [2025-02-07 23:18:04,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:04,669 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:04,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8407 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:18:04,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2025-02-07 23:18:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3453. [2025-02-07 23:18:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3453 states, 3452 states have (on average 1.499710312862109) internal successors, (5177), 3452 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 5177 transitions. [2025-02-07 23:18:04,706 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 5177 transitions. Word has length 1711 [2025-02-07 23:18:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:04,707 INFO L471 AbstractCegarLoop]: Abstraction has 3453 states and 5177 transitions. [2025-02-07 23:18:04,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 5177 transitions. [2025-02-07 23:18:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2025-02-07 23:18:04,735 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:04,736 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:04,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-07 23:18:04,736 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:04,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 714079915, now seen corresponding path program 1 times [2025-02-07 23:18:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:04,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914807642] [2025-02-07 23:18:04,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:04,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:04,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1711 statements into 1 equivalence classes. [2025-02-07 23:18:05,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1711 of 1711 statements. [2025-02-07 23:18:05,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:05,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:07,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:07,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914807642] [2025-02-07 23:18:07,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914807642] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:07,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:07,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:07,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483558612] [2025-02-07 23:18:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:07,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:07,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:07,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:07,060 INFO L87 Difference]: Start difference. First operand 3453 states and 5177 transitions. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:07,906 INFO L93 Difference]: Finished difference Result 6598 states and 9894 transitions. [2025-02-07 23:18:07,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:07,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 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 1711 [2025-02-07 23:18:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:07,920 INFO L225 Difference]: With dead ends: 6598 [2025-02-07 23:18:07,920 INFO L226 Difference]: Without dead ends: 3454 [2025-02-07 23:18:07,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:07,928 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:07,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8407 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-07 23:18:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2025-02-07 23:18:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3454. [2025-02-07 23:18:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 1.4995655951346656) internal successors, (5178), 3453 states have internal predecessors, (5178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5178 transitions. [2025-02-07 23:18:08,005 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5178 transitions. Word has length 1711 [2025-02-07 23:18:08,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:08,006 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 5178 transitions. [2025-02-07 23:18:08,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5178 transitions. [2025-02-07 23:18:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2025-02-07 23:18:08,031 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:08,032 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:08,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-07 23:18:08,036 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:08,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:08,037 INFO L85 PathProgramCache]: Analyzing trace with hash -84237910, now seen corresponding path program 1 times [2025-02-07 23:18:08,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:08,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181170869] [2025-02-07 23:18:08,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:08,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1711 statements into 1 equivalence classes. [2025-02-07 23:18:08,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1711 of 1711 statements. [2025-02-07 23:18:08,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:08,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:09,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:09,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181170869] [2025-02-07 23:18:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181170869] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:09,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:09,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561155444] [2025-02-07 23:18:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:09,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:09,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:09,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:09,998 INFO L87 Difference]: Start difference. First operand 3454 states and 5178 transitions. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:10,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:10,924 INFO L93 Difference]: Finished difference Result 6600 states and 9896 transitions. [2025-02-07 23:18:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:10,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 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 1711 [2025-02-07 23:18:10,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:10,939 INFO L225 Difference]: With dead ends: 6600 [2025-02-07 23:18:10,939 INFO L226 Difference]: Without dead ends: 3455 [2025-02-07 23:18:10,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:10,945 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:10,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8407 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:18:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2025-02-07 23:18:10,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3455. [2025-02-07 23:18:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3454 states have (on average 1.4994209612044007) internal successors, (5179), 3454 states have internal predecessors, (5179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 5179 transitions. [2025-02-07 23:18:11,011 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 5179 transitions. Word has length 1711 [2025-02-07 23:18:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:11,011 INFO L471 AbstractCegarLoop]: Abstraction has 3455 states and 5179 transitions. [2025-02-07 23:18:11,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 5179 transitions. [2025-02-07 23:18:11,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2025-02-07 23:18:11,042 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:11,043 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:11,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-07 23:18:11,044 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:11,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1304417227, now seen corresponding path program 1 times [2025-02-07 23:18:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727264768] [2025-02-07 23:18:11,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:11,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1711 statements into 1 equivalence classes. [2025-02-07 23:18:11,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1711 of 1711 statements. [2025-02-07 23:18:11,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:11,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:13,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:13,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727264768] [2025-02-07 23:18:13,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727264768] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:13,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:13,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:13,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722120474] [2025-02-07 23:18:13,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:13,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:13,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:13,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:13,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:13,091 INFO L87 Difference]: Start difference. First operand 3455 states and 5179 transitions. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:13,941 INFO L93 Difference]: Finished difference Result 6602 states and 9898 transitions. [2025-02-07 23:18:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 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 1711 [2025-02-07 23:18:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:13,946 INFO L225 Difference]: With dead ends: 6602 [2025-02-07 23:18:13,946 INFO L226 Difference]: Without dead ends: 3456 [2025-02-07 23:18:13,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:13,952 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 0 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:13,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8407 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-07 23:18:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2025-02-07 23:18:13,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3456. [2025-02-07 23:18:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3455 states have (on average 1.4992764109985528) internal successors, (5180), 3455 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 5180 transitions. [2025-02-07 23:18:13,978 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 5180 transitions. Word has length 1711 [2025-02-07 23:18:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:13,979 INFO L471 AbstractCegarLoop]: Abstraction has 3456 states and 5180 transitions. [2025-02-07 23:18:13,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 5180 transitions. [2025-02-07 23:18:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2025-02-07 23:18:13,993 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:13,994 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:13,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-07 23:18:13,994 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:13,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -832958198, now seen corresponding path program 1 times [2025-02-07 23:18:13,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:13,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323132674] [2025-02-07 23:18:13,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:13,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:14,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1711 statements into 1 equivalence classes. [2025-02-07 23:18:14,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1711 of 1711 statements. [2025-02-07 23:18:14,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:14,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:16,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:16,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323132674] [2025-02-07 23:18:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323132674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164525075] [2025-02-07 23:18:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:16,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:18:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:16,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:18:16,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:18:16,338 INFO L87 Difference]: Start difference. First operand 3456 states and 5180 transitions. Second operand has 4 states, 4 states have (on average 427.75) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:17,399 INFO L93 Difference]: Finished difference Result 6603 states and 9898 transitions. [2025-02-07 23:18:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:18:17,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 427.75) internal successors, (1711), 3 states have internal predecessors, (1711), 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 1711 [2025-02-07 23:18:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:17,403 INFO L225 Difference]: With dead ends: 6603 [2025-02-07 23:18:17,403 INFO L226 Difference]: Without dead ends: 3456 [2025-02-07 23:18:17,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:18:17,407 INFO L435 NwaCegarLoop]: 4174 mSDtfsCounter, 4819 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 8345 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:17,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4819 Valid, 8345 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 23:18:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2025-02-07 23:18:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3456. [2025-02-07 23:18:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3455 states have (on average 1.4989869753979739) internal successors, (5179), 3455 states have internal predecessors, (5179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 5179 transitions. [2025-02-07 23:18:17,433 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 5179 transitions. Word has length 1711 [2025-02-07 23:18:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:17,434 INFO L471 AbstractCegarLoop]: Abstraction has 3456 states and 5179 transitions. [2025-02-07 23:18:17,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 427.75) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 5179 transitions. [2025-02-07 23:18:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-02-07 23:18:17,448 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:17,449 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:17,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-07 23:18:17,449 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:17,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:17,451 INFO L85 PathProgramCache]: Analyzing trace with hash -807763735, now seen corresponding path program 1 times [2025-02-07 23:18:17,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:17,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407508662] [2025-02-07 23:18:17,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:17,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:17,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1712 statements into 1 equivalence classes. [2025-02-07 23:18:18,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1712 of 1712 statements. [2025-02-07 23:18:18,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:18,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:19,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:19,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407508662] [2025-02-07 23:18:19,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407508662] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:19,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:19,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667124663] [2025-02-07 23:18:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:19,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:19,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:19,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:19,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:19,578 INFO L87 Difference]: Start difference. First operand 3456 states and 5179 transitions. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:20,362 INFO L93 Difference]: Finished difference Result 6604 states and 9898 transitions. [2025-02-07 23:18:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 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 1712 [2025-02-07 23:18:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:20,366 INFO L225 Difference]: With dead ends: 6604 [2025-02-07 23:18:20,366 INFO L226 Difference]: Without dead ends: 3457 [2025-02-07 23:18:20,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:20,370 INFO L435 NwaCegarLoop]: 4205 mSDtfsCounter, 0 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8405 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:20,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8405 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-07 23:18:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2025-02-07 23:18:20,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3457. [2025-02-07 23:18:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3456 states have (on average 1.4988425925925926) internal successors, (5180), 3456 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 5180 transitions. [2025-02-07 23:18:20,447 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 5180 transitions. Word has length 1712 [2025-02-07 23:18:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:20,448 INFO L471 AbstractCegarLoop]: Abstraction has 3457 states and 5180 transitions. [2025-02-07 23:18:20,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 5180 transitions. [2025-02-07 23:18:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-02-07 23:18:20,486 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:20,487 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:20,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-07 23:18:20,487 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:20,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash 717966730, now seen corresponding path program 1 times [2025-02-07 23:18:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:20,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440191050] [2025-02-07 23:18:20,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:20,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1712 statements into 1 equivalence classes. [2025-02-07 23:18:21,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1712 of 1712 statements. [2025-02-07 23:18:21,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:21,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440191050] [2025-02-07 23:18:22,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440191050] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:22,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:22,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:22,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143559931] [2025-02-07 23:18:22,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:22,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:22,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:22,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:22,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:22,523 INFO L87 Difference]: Start difference. First operand 3457 states and 5180 transitions. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:23,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:23,266 INFO L93 Difference]: Finished difference Result 6606 states and 9900 transitions. [2025-02-07 23:18:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:23,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 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 1712 [2025-02-07 23:18:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:23,270 INFO L225 Difference]: With dead ends: 6606 [2025-02-07 23:18:23,270 INFO L226 Difference]: Without dead ends: 3458 [2025-02-07 23:18:23,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:23,273 INFO L435 NwaCegarLoop]: 4205 mSDtfsCounter, 0 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8405 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:23,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8405 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-07 23:18:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3458 states. [2025-02-07 23:18:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3458 to 3458. [2025-02-07 23:18:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3457 states have (on average 1.4986982933179056) internal successors, (5181), 3457 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 5181 transitions. [2025-02-07 23:18:23,300 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 5181 transitions. Word has length 1712 [2025-02-07 23:18:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:23,300 INFO L471 AbstractCegarLoop]: Abstraction has 3458 states and 5181 transitions. [2025-02-07 23:18:23,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 5181 transitions. [2025-02-07 23:18:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-02-07 23:18:23,315 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:23,316 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:23,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-07 23:18:23,316 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:23,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1342398537, now seen corresponding path program 1 times [2025-02-07 23:18:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:23,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288772566] [2025-02-07 23:18:23,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:23,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1712 statements into 1 equivalence classes. [2025-02-07 23:18:23,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1712 of 1712 statements. [2025-02-07 23:18:23,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:23,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:25,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:25,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288772566] [2025-02-07 23:18:25,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288772566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:25,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:25,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:25,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645800370] [2025-02-07 23:18:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:25,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:25,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:25,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:25,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:25,418 INFO L87 Difference]: Start difference. First operand 3458 states and 5181 transitions. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:26,315 INFO L93 Difference]: Finished difference Result 6608 states and 9902 transitions. [2025-02-07 23:18:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 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 1712 [2025-02-07 23:18:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:26,319 INFO L225 Difference]: With dead ends: 6608 [2025-02-07 23:18:26,319 INFO L226 Difference]: Without dead ends: 3459 [2025-02-07 23:18:26,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:26,323 INFO L435 NwaCegarLoop]: 4205 mSDtfsCounter, 0 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8405 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:26,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8405 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:18:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2025-02-07 23:18:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3459. [2025-02-07 23:18:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3458 states have (on average 1.4985540775014459) internal successors, (5182), 3458 states have internal predecessors, (5182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5182 transitions. [2025-02-07 23:18:26,360 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5182 transitions. Word has length 1712 [2025-02-07 23:18:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:26,360 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 5182 transitions. [2025-02-07 23:18:26,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5182 transitions. [2025-02-07 23:18:26,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-02-07 23:18:26,377 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:26,378 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:26,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-07 23:18:26,378 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:26,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:26,380 INFO L85 PathProgramCache]: Analyzing trace with hash 190763272, now seen corresponding path program 1 times [2025-02-07 23:18:26,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:26,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236919489] [2025-02-07 23:18:26,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:26,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:18:26,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1712 statements into 1 equivalence classes. [2025-02-07 23:18:27,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1712 of 1712 statements. [2025-02-07 23:18:27,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:18:27,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:18:28,688 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:18:28,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:18:28,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236919489] [2025-02-07 23:18:28,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236919489] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:18:28,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:18:28,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:18:28,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120058252] [2025-02-07 23:18:28,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:18:28,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 23:18:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:18:28,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 23:18:28,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:28,691 INFO L87 Difference]: Start difference. First operand 3459 states and 5182 transitions. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:29,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:18:29,580 INFO L93 Difference]: Finished difference Result 6610 states and 9904 transitions. [2025-02-07 23:18:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 23:18:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 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 1712 [2025-02-07 23:18:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:18:29,588 INFO L225 Difference]: With dead ends: 6610 [2025-02-07 23:18:29,589 INFO L226 Difference]: Without dead ends: 3460 [2025-02-07 23:18:29,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 23:18:29,596 INFO L435 NwaCegarLoop]: 4205 mSDtfsCounter, 0 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8405 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:18:29,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8405 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-07 23:18:29,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2025-02-07 23:18:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2025-02-07 23:18:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3459 states have (on average 1.4984099450708297) internal successors, (5183), 3459 states have internal predecessors, (5183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 5183 transitions. [2025-02-07 23:18:29,664 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 5183 transitions. Word has length 1712 [2025-02-07 23:18:29,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:18:29,665 INFO L471 AbstractCegarLoop]: Abstraction has 3460 states and 5183 transitions. [2025-02-07 23:18:29,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:18:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 5183 transitions. [2025-02-07 23:18:29,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-02-07 23:18:29,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:18:29,687 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:18:29,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-07 23:18:29,687 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:18:29,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:18:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1311552361, now seen corresponding path program 1 times [2025-02-07 23:18:29,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:18:29,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110473292] [2025-02-07 23:18:29,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:18:29,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms