./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f5d1caac7bf708c4119c29d798b4046bdc15eade373db47a79a21cda9801b3b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 17:30:58,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 17:30:58,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-03 17:30:58,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 17:30:58,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 17:30:58,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 17:30:58,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 17:30:58,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 17:30:58,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 17:30:58,547 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 17:30:58,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 17:30:58,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 17:30:58,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 17:30:58,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 17:30:58,548 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 17:30:58,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 17:30:58,549 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:30:58,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 17:30:58,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 17:30:58,550 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f5d1caac7bf708c4119c29d798b4046bdc15eade373db47a79a21cda9801b3b [2025-03-03 17:30:58,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 17:30:58,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 17:30:58,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 17:30:58,789 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 17:30:58,789 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 17:30:58,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2025-03-03 17:30:59,915 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e86b77b9/1a950c107f74405698b597cb4d7707ae/FLAGd48e3dbc5 [2025-03-03 17:31:00,195 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 17:31:00,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2025-03-03 17:31:00,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e86b77b9/1a950c107f74405698b597cb4d7707ae/FLAGd48e3dbc5 [2025-03-03 17:31:00,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e86b77b9/1a950c107f74405698b597cb4d7707ae [2025-03-03 17:31:00,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 17:31:00,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 17:31:00,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 17:31:00,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 17:31:00,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 17:31:00,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:31:00" (1/1) ... [2025-03-03 17:31:00,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58366900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:00, skipping insertion in model container [2025-03-03 17:31:00,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:31:00" (1/1) ... [2025-03-03 17:31:00,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 17:31:00,662 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c[1175,1188] [2025-03-03 17:31:00,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:31:00,893 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 17:31:00,899 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-back-serstep.c[1175,1188] [2025-03-03 17:31:01,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:31:01,010 INFO L204 MainTranslator]: Completed translation [2025-03-03 17:31:01,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01 WrapperNode [2025-03-03 17:31:01,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 17:31:01,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 17:31:01,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 17:31:01,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 17:31:01,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,376 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4037 [2025-03-03 17:31:01,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 17:31:01,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 17:31:01,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 17:31:01,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 17:31:01,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,553 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]. [2025-03-03 17:31:01,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,641 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 17:31:01,812 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 17:31:01,813 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 17:31:01,813 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 17:31:01,814 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (1/1) ... [2025-03-03 17:31:01,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:31:01,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:01,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 17:31:01,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 17:31:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 17:31:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 17:31:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 17:31:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 17:31:02,064 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 17:31:02,066 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 17:31:05,235 INFO L? ?]: Removed 2217 outVars from TransFormulas that were not future-live. [2025-03-03 17:31:05,235 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 17:31:05,384 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 17:31:05,388 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 17:31:05,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:31:05 BoogieIcfgContainer [2025-03-03 17:31:05,389 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 17:31:05,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 17:31:05,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 17:31:05,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 17:31:05,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:31:00" (1/3) ... [2025-03-03 17:31:05,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698da710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:31:05, skipping insertion in model container [2025-03-03 17:31:05,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:31:01" (2/3) ... [2025-03-03 17:31:05,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698da710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:31:05, skipping insertion in model container [2025-03-03 17:31:05,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:31:05" (3/3) ... [2025-03-03 17:31:05,397 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.1.prop1-back-serstep.c [2025-03-03 17:31:05,413 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 17:31:05,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.fischer.1.prop1-back-serstep.c that has 1 procedures, 1374 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 17:31:05,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 17:31:05,524 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;@6d53fc7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 17:31:05,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 17:31:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 1374 states, 1372 states have (on average 1.499271137026239) internal successors, (2057), 1373 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-03 17:31:05,548 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:05,548 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] [2025-03-03 17:31:05,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:05,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -744724881, now seen corresponding path program 1 times [2025-03-03 17:31:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:05,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818326341] [2025-03-03 17:31:05,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:05,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-03-03 17:31:05,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-03-03 17:31:05,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:05,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:06,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818326341] [2025-03-03 17:31:06,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818326341] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:06,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:06,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078090109] [2025-03-03 17:31:06,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:06,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:06,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:06,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:06,591 INFO L87 Difference]: Start difference. First operand has 1374 states, 1372 states have (on average 1.499271137026239) internal successors, (2057), 1373 states have internal predecessors, (2057), 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 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:07,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:07,219 INFO L93 Difference]: Finished difference Result 2669 states and 3999 transitions. [2025-03-03 17:31:07,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:07,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 157 [2025-03-03 17:31:07,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:07,238 INFO L225 Difference]: With dead ends: 2669 [2025-03-03 17:31:07,238 INFO L226 Difference]: Without dead ends: 1373 [2025-03-03 17:31:07,243 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 [2025-03-03 17:31:07,244 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:07,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5125 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2025-03-03 17:31:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1373. [2025-03-03 17:31:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1372 states have (on average 1.4978134110787171) internal successors, (2055), 1372 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2055 transitions. [2025-03-03 17:31:07,357 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2055 transitions. Word has length 157 [2025-03-03 17:31:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:07,358 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2055 transitions. [2025-03-03 17:31:07,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2055 transitions. [2025-03-03 17:31:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-03 17:31:07,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:07,365 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] [2025-03-03 17:31:07,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 17:31:07,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:07,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1606953831, now seen corresponding path program 1 times [2025-03-03 17:31:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:07,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264085912] [2025-03-03 17:31:07,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:07,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:07,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-03 17:31:07,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-03 17:31:07,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:07,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:07,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:07,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264085912] [2025-03-03 17:31:07,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264085912] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:07,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:07,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:07,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002621968] [2025-03-03 17:31:07,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:07,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:07,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:07,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:07,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:07,693 INFO L87 Difference]: Start difference. First operand 1373 states and 2055 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:08,238 INFO L93 Difference]: Finished difference Result 2670 states and 3997 transitions. [2025-03-03 17:31:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:08,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 158 [2025-03-03 17:31:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:08,243 INFO L225 Difference]: With dead ends: 2670 [2025-03-03 17:31:08,244 INFO L226 Difference]: Without dead ends: 1375 [2025-03-03 17:31:08,245 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 [2025-03-03 17:31:08,245 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:08,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2025-03-03 17:31:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1375. [2025-03-03 17:31:08,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1374 states have (on average 1.497088791848617) internal successors, (2057), 1374 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 2057 transitions. [2025-03-03 17:31:08,272 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 2057 transitions. Word has length 158 [2025-03-03 17:31:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:08,273 INFO L471 AbstractCegarLoop]: Abstraction has 1375 states and 2057 transitions. [2025-03-03 17:31:08,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 2057 transitions. [2025-03-03 17:31:08,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-03 17:31:08,278 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:08,278 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] [2025-03-03 17:31:08,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 17:31:08,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:08,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash -639417430, now seen corresponding path program 1 times [2025-03-03 17:31:08,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:08,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753530991] [2025-03-03 17:31:08,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:08,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:08,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-03 17:31:08,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-03 17:31:08,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:08,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:08,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753530991] [2025-03-03 17:31:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753530991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:08,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:08,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:31:08,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175040302] [2025-03-03 17:31:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:08,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:31:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:08,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:31:08,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:08,638 INFO L87 Difference]: Start difference. First operand 1375 states and 2057 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:09,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:09,491 INFO L93 Difference]: Finished difference Result 3947 states and 5908 transitions. [2025-03-03 17:31:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 17:31:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 159 [2025-03-03 17:31:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:09,501 INFO L225 Difference]: With dead ends: 3947 [2025-03-03 17:31:09,502 INFO L226 Difference]: Without dead ends: 2650 [2025-03-03 17:31:09,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 17:31:09,507 INFO L435 NwaCegarLoop]: 1708 mSDtfsCounter, 1874 mSDsluCounter, 5023 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:09,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 6731 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 17:31:09,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2025-03-03 17:31:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1597. [2025-03-03 17:31:09,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1596 states have (on average 1.4968671679197996) internal successors, (2389), 1596 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2389 transitions. [2025-03-03 17:31:09,549 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2389 transitions. Word has length 159 [2025-03-03 17:31:09,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:09,549 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2389 transitions. [2025-03-03 17:31:09,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2389 transitions. [2025-03-03 17:31:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2025-03-03 17:31:09,562 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:09,564 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:09,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 17:31:09,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:09,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1632921620, now seen corresponding path program 1 times [2025-03-03 17:31:09,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:09,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279344722] [2025-03-03 17:31:09,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:09,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 806 statements into 1 equivalence classes. [2025-03-03 17:31:10,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 806 of 806 statements. [2025-03-03 17:31:10,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:10,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:11,934 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-03 17:31:11,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:11,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279344722] [2025-03-03 17:31:11,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279344722] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:11,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:11,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:31:11,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895149847] [2025-03-03 17:31:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:11,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:31:11,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:11,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:31:11,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:11,937 INFO L87 Difference]: Start difference. First operand 1597 states and 2389 transitions. Second operand has 5 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:12,464 INFO L93 Difference]: Finished difference Result 2898 states and 4335 transitions. [2025-03-03 17:31:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 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 806 [2025-03-03 17:31:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:12,472 INFO L225 Difference]: With dead ends: 2898 [2025-03-03 17:31:12,473 INFO L226 Difference]: Without dead ends: 1601 [2025-03-03 17:31:12,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:12,475 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:12,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2025-03-03 17:31:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1597. [2025-03-03 17:31:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1596 states have (on average 1.4968671679197996) internal successors, (2389), 1596 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2389 transitions. [2025-03-03 17:31:12,505 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2389 transitions. Word has length 806 [2025-03-03 17:31:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:12,506 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2389 transitions. [2025-03-03 17:31:12,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2389 transitions. [2025-03-03 17:31:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2025-03-03 17:31:12,518 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:12,519 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:12,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 17:31:12,519 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:12,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash 969327028, now seen corresponding path program 1 times [2025-03-03 17:31:12,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:12,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10878733] [2025-03-03 17:31:12,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:12,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 807 statements into 1 equivalence classes. [2025-03-03 17:31:12,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 807 of 807 statements. [2025-03-03 17:31:12,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:12,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-03-03 17:31:14,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10878733] [2025-03-03 17:31:14,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10878733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:14,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:14,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:14,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902668673] [2025-03-03 17:31:14,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:14,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:14,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:14,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:14,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:14,089 INFO L87 Difference]: Start difference. First operand 1597 states and 2389 transitions. Second operand has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:14,602 INFO L93 Difference]: Finished difference Result 2902 states and 4341 transitions. [2025-03-03 17:31:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 807 [2025-03-03 17:31:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:14,609 INFO L225 Difference]: With dead ends: 2902 [2025-03-03 17:31:14,609 INFO L226 Difference]: Without dead ends: 1601 [2025-03-03 17:31:14,611 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 [2025-03-03 17:31:14,612 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:14,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2025-03-03 17:31:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1599. [2025-03-03 17:31:14,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1598 states have (on average 1.4962453066332917) internal successors, (2391), 1598 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2391 transitions. [2025-03-03 17:31:14,635 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2391 transitions. Word has length 807 [2025-03-03 17:31:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:14,636 INFO L471 AbstractCegarLoop]: Abstraction has 1599 states and 2391 transitions. [2025-03-03 17:31:14,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2391 transitions. [2025-03-03 17:31:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2025-03-03 17:31:14,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:14,650 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:14,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 17:31:14,650 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:14,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash 684166095, now seen corresponding path program 1 times [2025-03-03 17:31:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436665756] [2025-03-03 17:31:14,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:14,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 808 statements into 1 equivalence classes. [2025-03-03 17:31:14,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 808 of 808 statements. [2025-03-03 17:31:14,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:14,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-03 17:31:15,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:15,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436665756] [2025-03-03 17:31:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436665756] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:15,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:15,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:31:15,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306686396] [2025-03-03 17:31:15,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:15,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:31:15,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:15,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:31:15,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:15,878 INFO L87 Difference]: Start difference. First operand 1599 states and 2391 transitions. Second operand has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:16,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:16,397 INFO L93 Difference]: Finished difference Result 2910 states and 4351 transitions. [2025-03-03 17:31:16,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:16,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 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 808 [2025-03-03 17:31:16,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:16,402 INFO L225 Difference]: With dead ends: 2910 [2025-03-03 17:31:16,403 INFO L226 Difference]: Without dead ends: 1603 [2025-03-03 17:31:16,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:16,405 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:16,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2025-03-03 17:31:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1601. [2025-03-03 17:31:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 1.495625) internal successors, (2393), 1600 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2393 transitions. [2025-03-03 17:31:16,429 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2393 transitions. Word has length 808 [2025-03-03 17:31:16,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:16,430 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2393 transitions. [2025-03-03 17:31:16,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2393 transitions. [2025-03-03 17:31:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2025-03-03 17:31:16,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:16,436 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:16,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 17:31:16,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:16,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash -397232263, now seen corresponding path program 1 times [2025-03-03 17:31:16,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:16,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617749547] [2025-03-03 17:31:16,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:16,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:16,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 809 statements into 1 equivalence classes. [2025-03-03 17:31:16,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 809 of 809 statements. [2025-03-03 17:31:16,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:16,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-03 17:31:17,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617749547] [2025-03-03 17:31:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617749547] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:17,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:17,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971842790] [2025-03-03 17:31:17,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:17,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:17,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:17,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:17,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:17,621 INFO L87 Difference]: Start difference. First operand 1601 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:18,126 INFO L93 Difference]: Finished difference Result 2918 states and 4361 transitions. [2025-03-03 17:31:18,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:18,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 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 809 [2025-03-03 17:31:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:18,132 INFO L225 Difference]: With dead ends: 2918 [2025-03-03 17:31:18,132 INFO L226 Difference]: Without dead ends: 1605 [2025-03-03 17:31:18,133 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 [2025-03-03 17:31:18,134 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:18,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 17:31:18,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2025-03-03 17:31:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1603. [2025-03-03 17:31:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1602 states have (on average 1.4950062421972534) internal successors, (2395), 1602 states have internal predecessors, (2395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:18,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2395 transitions. [2025-03-03 17:31:18,156 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2395 transitions. Word has length 809 [2025-03-03 17:31:18,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:18,157 INFO L471 AbstractCegarLoop]: Abstraction has 1603 states and 2395 transitions. [2025-03-03 17:31:18,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:18,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2395 transitions. [2025-03-03 17:31:18,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2025-03-03 17:31:18,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:18,163 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:18,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 17:31:18,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:18,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1349322614, now seen corresponding path program 1 times [2025-03-03 17:31:18,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619320409] [2025-03-03 17:31:18,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:18,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:18,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 810 statements into 1 equivalence classes. [2025-03-03 17:31:19,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 810 of 810 statements. [2025-03-03 17:31:19,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:19,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 2 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:20,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:20,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619320409] [2025-03-03 17:31:20,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619320409] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:20,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476000570] [2025-03-03 17:31:20,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:20,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:20,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:20,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 17:31:21,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 810 statements into 1 equivalence classes. [2025-03-03 17:31:22,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 810 of 810 statements. [2025-03-03 17:31:22,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:22,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:22,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:31:22,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:31:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 2 proven. 64 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-03 17:31:23,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 17:31:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 2 proven. 64 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-03 17:31:24,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476000570] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 17:31:24,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 17:31:24,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2025-03-03 17:31:24,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393723664] [2025-03-03 17:31:24,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 17:31:24,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-03 17:31:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:24,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-03 17:31:24,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:31:24,388 INFO L87 Difference]: Start difference. First operand 1603 states and 2395 transitions. Second operand has 11 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:26,474 INFO L93 Difference]: Finished difference Result 6099 states and 9111 transitions. [2025-03-03 17:31:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-03 17:31:26,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 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 810 [2025-03-03 17:31:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:26,482 INFO L225 Difference]: With dead ends: 6099 [2025-03-03 17:31:26,483 INFO L226 Difference]: Without dead ends: 2620 [2025-03-03 17:31:26,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1628 GetRequests, 1616 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-03-03 17:31:26,487 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 4501 mSDsluCounter, 8915 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 10602 SdHoareTripleChecker+Invalid, 3860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:26,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 10602 Invalid, 3860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-03 17:31:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2025-03-03 17:31:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1603. [2025-03-03 17:31:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1602 states have (on average 1.4943820224719102) internal successors, (2394), 1602 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2394 transitions. [2025-03-03 17:31:26,509 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2394 transitions. Word has length 810 [2025-03-03 17:31:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:26,510 INFO L471 AbstractCegarLoop]: Abstraction has 1603 states and 2394 transitions. [2025-03-03 17:31:26,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2394 transitions. [2025-03-03 17:31:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2025-03-03 17:31:26,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:26,516 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:26,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 17:31:26,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:26,717 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:26,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1129218211, now seen corresponding path program 1 times [2025-03-03 17:31:26,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:26,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817366259] [2025-03-03 17:31:26,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:26,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 811 statements into 1 equivalence classes. [2025-03-03 17:31:27,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 811 of 811 statements. [2025-03-03 17:31:27,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:27,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-03 17:31:27,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:27,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817366259] [2025-03-03 17:31:27,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817366259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:27,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:27,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:31:27,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287801865] [2025-03-03 17:31:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:27,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:31:27,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:27,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:31:27,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:27,803 INFO L87 Difference]: Start difference. First operand 1603 states and 2394 transitions. Second operand has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:28,211 INFO L93 Difference]: Finished difference Result 2926 states and 4370 transitions. [2025-03-03 17:31:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:28,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 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 811 [2025-03-03 17:31:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:28,216 INFO L225 Difference]: With dead ends: 2926 [2025-03-03 17:31:28,216 INFO L226 Difference]: Without dead ends: 1607 [2025-03-03 17:31:28,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:28,218 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:28,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2025-03-03 17:31:28,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1605. [2025-03-03 17:31:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1604 states have (on average 1.4937655860349128) internal successors, (2396), 1604 states have internal predecessors, (2396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2396 transitions. [2025-03-03 17:31:28,237 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2396 transitions. Word has length 811 [2025-03-03 17:31:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:28,238 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2396 transitions. [2025-03-03 17:31:28,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2396 transitions. [2025-03-03 17:31:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2025-03-03 17:31:28,243 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:28,243 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:28,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 17:31:28,244 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:28,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1493886789, now seen corresponding path program 1 times [2025-03-03 17:31:28,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:28,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370976329] [2025-03-03 17:31:28,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:28,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:28,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 812 statements into 1 equivalence classes. [2025-03-03 17:31:28,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 812 of 812 statements. [2025-03-03 17:31:28,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:28,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-03 17:31:29,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370976329] [2025-03-03 17:31:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370976329] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:29,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512799901] [2025-03-03 17:31:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:29,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:29,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:29,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:29,301 INFO L87 Difference]: Start difference. First operand 1605 states and 2396 transitions. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:29,672 INFO L93 Difference]: Finished difference Result 2942 states and 4392 transitions. [2025-03-03 17:31:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:29,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 812 [2025-03-03 17:31:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:29,676 INFO L225 Difference]: With dead ends: 2942 [2025-03-03 17:31:29,676 INFO L226 Difference]: Without dead ends: 1617 [2025-03-03 17:31:29,677 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 [2025-03-03 17:31:29,678 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 4 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:29,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-03-03 17:31:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1611. [2025-03-03 17:31:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1610 states have (on average 1.493167701863354) internal successors, (2404), 1610 states have internal predecessors, (2404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2404 transitions. [2025-03-03 17:31:29,693 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2404 transitions. Word has length 812 [2025-03-03 17:31:29,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:29,694 INFO L471 AbstractCegarLoop]: Abstraction has 1611 states and 2404 transitions. [2025-03-03 17:31:29,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2404 transitions. [2025-03-03 17:31:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2025-03-03 17:31:29,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:29,699 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:29,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 17:31:29,699 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:29,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:29,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1655361689, now seen corresponding path program 1 times [2025-03-03 17:31:29,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:29,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722837544] [2025-03-03 17:31:29,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:29,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-03 17:31:29,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-03 17:31:29,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:29,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-03 17:31:30,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:30,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722837544] [2025-03-03 17:31:30,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722837544] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:30,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:30,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:30,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32835692] [2025-03-03 17:31:30,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:30,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:30,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:30,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:30,867 INFO L87 Difference]: Start difference. First operand 1611 states and 2404 transitions. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:31,255 INFO L93 Difference]: Finished difference Result 2954 states and 4408 transitions. [2025-03-03 17:31:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:31,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 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 813 [2025-03-03 17:31:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:31,261 INFO L225 Difference]: With dead ends: 2954 [2025-03-03 17:31:31,261 INFO L226 Difference]: Without dead ends: 1615 [2025-03-03 17:31:31,262 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 [2025-03-03 17:31:31,262 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:31,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5117 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:31,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2025-03-03 17:31:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1613. [2025-03-03 17:31:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1612 states have (on average 1.4925558312655087) internal successors, (2406), 1612 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2406 transitions. [2025-03-03 17:31:31,277 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2406 transitions. Word has length 813 [2025-03-03 17:31:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:31,278 INFO L471 AbstractCegarLoop]: Abstraction has 1613 states and 2406 transitions. [2025-03-03 17:31:31,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2406 transitions. [2025-03-03 17:31:31,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2025-03-03 17:31:31,282 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:31,282 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:31,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 17:31:31,283 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:31,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 795619178, now seen corresponding path program 1 times [2025-03-03 17:31:31,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:31,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856688429] [2025-03-03 17:31:31,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:31,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 814 statements into 1 equivalence classes. [2025-03-03 17:31:31,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 814 of 814 statements. [2025-03-03 17:31:31,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:31,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-03 17:31:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856688429] [2025-03-03 17:31:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856688429] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:32,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:32,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:32,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024949474] [2025-03-03 17:31:32,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:32,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:32,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:32,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:32,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:32,149 INFO L87 Difference]: Start difference. First operand 1613 states and 2406 transitions. Second operand has 4 states, 4 states have (on average 180.5) internal successors, (722), 4 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:32,516 INFO L93 Difference]: Finished difference Result 2968 states and 4426 transitions. [2025-03-03 17:31:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 180.5) internal successors, (722), 4 states have internal predecessors, (722), 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 814 [2025-03-03 17:31:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:32,520 INFO L225 Difference]: With dead ends: 2968 [2025-03-03 17:31:32,521 INFO L226 Difference]: Without dead ends: 1627 [2025-03-03 17:31:32,522 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 [2025-03-03 17:31:32,522 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 3 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:32,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:31:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2025-03-03 17:31:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1617. [2025-03-03 17:31:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1616 states have (on average 1.4925742574257426) internal successors, (2412), 1616 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2412 transitions. [2025-03-03 17:31:32,538 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2412 transitions. Word has length 814 [2025-03-03 17:31:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:32,539 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2412 transitions. [2025-03-03 17:31:32,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.5) internal successors, (722), 4 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2412 transitions. [2025-03-03 17:31:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2025-03-03 17:31:32,544 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:32,544 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:32,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 17:31:32,545 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:32,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1687392524, now seen corresponding path program 1 times [2025-03-03 17:31:32,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:32,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463538497] [2025-03-03 17:31:32,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:32,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 815 statements into 1 equivalence classes. [2025-03-03 17:31:32,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 815 of 815 statements. [2025-03-03 17:31:32,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:32,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-03 17:31:33,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:33,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463538497] [2025-03-03 17:31:33,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463538497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:33,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:33,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:33,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846030578] [2025-03-03 17:31:33,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:33,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:33,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:33,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:33,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:33,387 INFO L87 Difference]: Start difference. First operand 1617 states and 2412 transitions. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:33,784 INFO L93 Difference]: Finished difference Result 2982 states and 4448 transitions. [2025-03-03 17:31:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:33,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 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 815 [2025-03-03 17:31:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:33,788 INFO L225 Difference]: With dead ends: 2982 [2025-03-03 17:31:33,788 INFO L226 Difference]: Without dead ends: 1629 [2025-03-03 17:31:33,789 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 [2025-03-03 17:31:33,789 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 4 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:33,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2025-03-03 17:31:33,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1623. [2025-03-03 17:31:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1622 states have (on average 1.4919852034525278) internal successors, (2420), 1622 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2420 transitions. [2025-03-03 17:31:33,802 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2420 transitions. Word has length 815 [2025-03-03 17:31:33,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:33,802 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2420 transitions. [2025-03-03 17:31:33,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:33,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2420 transitions. [2025-03-03 17:31:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2025-03-03 17:31:33,807 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:33,808 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:33,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 17:31:33,808 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:33,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1929729844, now seen corresponding path program 1 times [2025-03-03 17:31:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:33,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793447503] [2025-03-03 17:31:33,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:33,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 816 statements into 1 equivalence classes. [2025-03-03 17:31:34,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 816 of 816 statements. [2025-03-03 17:31:34,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:34,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-03 17:31:34,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:34,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793447503] [2025-03-03 17:31:34,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793447503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:34,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:34,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:34,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006636553] [2025-03-03 17:31:34,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:34,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:34,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:34,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:34,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:34,665 INFO L87 Difference]: Start difference. First operand 1623 states and 2420 transitions. Second operand has 4 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:35,028 INFO L93 Difference]: Finished difference Result 2994 states and 4464 transitions. [2025-03-03 17:31:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 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 816 [2025-03-03 17:31:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:35,032 INFO L225 Difference]: With dead ends: 2994 [2025-03-03 17:31:35,033 INFO L226 Difference]: Without dead ends: 1627 [2025-03-03 17:31:35,034 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 [2025-03-03 17:31:35,034 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:35,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:31:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2025-03-03 17:31:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1625. [2025-03-03 17:31:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1624 states have (on average 1.4913793103448276) internal successors, (2422), 1624 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2422 transitions. [2025-03-03 17:31:35,045 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2422 transitions. Word has length 816 [2025-03-03 17:31:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:35,046 INFO L471 AbstractCegarLoop]: Abstraction has 1625 states and 2422 transitions. [2025-03-03 17:31:35,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2422 transitions. [2025-03-03 17:31:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2025-03-03 17:31:35,050 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:35,050 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 17:31:35,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1524682799, now seen corresponding path program 1 times [2025-03-03 17:31:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982474759] [2025-03-03 17:31:35,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:35,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 817 statements into 1 equivalence classes. [2025-03-03 17:31:35,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 817 of 817 statements. [2025-03-03 17:31:35,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:35,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-03 17:31:36,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982474759] [2025-03-03 17:31:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982474759] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:36,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:36,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:36,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969698229] [2025-03-03 17:31:36,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:36,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:36,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:36,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:36,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:36,015 INFO L87 Difference]: Start difference. First operand 1625 states and 2422 transitions. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:36,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:36,381 INFO L93 Difference]: Finished difference Result 3002 states and 4474 transitions. [2025-03-03 17:31:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:36,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 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 817 [2025-03-03 17:31:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:36,386 INFO L225 Difference]: With dead ends: 3002 [2025-03-03 17:31:36,386 INFO L226 Difference]: Without dead ends: 1629 [2025-03-03 17:31:36,387 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 [2025-03-03 17:31:36,387 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:36,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5117 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:31:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2025-03-03 17:31:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1627. [2025-03-03 17:31:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1626 states have (on average 1.4907749077490775) internal successors, (2424), 1626 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2424 transitions. [2025-03-03 17:31:36,401 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2424 transitions. Word has length 817 [2025-03-03 17:31:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:36,401 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 2424 transitions. [2025-03-03 17:31:36,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2424 transitions. [2025-03-03 17:31:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2025-03-03 17:31:36,405 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:36,406 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:36,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 17:31:36,406 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:36,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -682799239, now seen corresponding path program 1 times [2025-03-03 17:31:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154677667] [2025-03-03 17:31:36,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:36,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 818 statements into 1 equivalence classes. [2025-03-03 17:31:36,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 818 of 818 statements. [2025-03-03 17:31:36,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:36,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-03 17:31:37,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:37,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154677667] [2025-03-03 17:31:37,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154677667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:37,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:37,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:37,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496656322] [2025-03-03 17:31:37,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:37,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:37,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:37,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:37,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:37,221 INFO L87 Difference]: Start difference. First operand 1627 states and 2424 transitions. Second operand has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:37,598 INFO L93 Difference]: Finished difference Result 3016 states and 4492 transitions. [2025-03-03 17:31:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:37,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 818 [2025-03-03 17:31:37,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:37,602 INFO L225 Difference]: With dead ends: 3016 [2025-03-03 17:31:37,602 INFO L226 Difference]: Without dead ends: 1641 [2025-03-03 17:31:37,603 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 [2025-03-03 17:31:37,604 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 3 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:37,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2025-03-03 17:31:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1631. [2025-03-03 17:31:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1630 states have (on average 1.49079754601227) internal successors, (2430), 1630 states have internal predecessors, (2430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2430 transitions. [2025-03-03 17:31:37,617 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2430 transitions. Word has length 818 [2025-03-03 17:31:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:37,618 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2430 transitions. [2025-03-03 17:31:37,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2430 transitions. [2025-03-03 17:31:37,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2025-03-03 17:31:37,622 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:37,622 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:37,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 17:31:37,622 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:37,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash 321976938, now seen corresponding path program 1 times [2025-03-03 17:31:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:37,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934013629] [2025-03-03 17:31:37,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:37,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:37,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 819 statements into 1 equivalence classes. [2025-03-03 17:31:37,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 819 of 819 statements. [2025-03-03 17:31:37,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:37,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-03 17:31:38,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:38,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934013629] [2025-03-03 17:31:38,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934013629] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:38,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:38,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942755729] [2025-03-03 17:31:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:38,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:38,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:38,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:38,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:38,428 INFO L87 Difference]: Start difference. First operand 1631 states and 2430 transitions. Second operand has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:38,801 INFO L93 Difference]: Finished difference Result 3022 states and 4502 transitions. [2025-03-03 17:31:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:38,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 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 819 [2025-03-03 17:31:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:38,804 INFO L225 Difference]: With dead ends: 3022 [2025-03-03 17:31:38,804 INFO L226 Difference]: Without dead ends: 1635 [2025-03-03 17:31:38,806 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 [2025-03-03 17:31:38,806 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 0 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:38,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5117 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2025-03-03 17:31:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1633. [2025-03-03 17:31:38,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1632 states have (on average 1.4901960784313726) internal successors, (2432), 1632 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2432 transitions. [2025-03-03 17:31:38,817 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2432 transitions. Word has length 819 [2025-03-03 17:31:38,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:38,818 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2432 transitions. [2025-03-03 17:31:38,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:38,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2432 transitions. [2025-03-03 17:31:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2025-03-03 17:31:38,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:38,822 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:38,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 17:31:38,822 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:38,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:38,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1317832382, now seen corresponding path program 1 times [2025-03-03 17:31:38,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:38,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306197594] [2025-03-03 17:31:38,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:38,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:38,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 820 statements into 1 equivalence classes. [2025-03-03 17:31:39,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 820 of 820 statements. [2025-03-03 17:31:39,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:39,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-03 17:31:39,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:39,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306197594] [2025-03-03 17:31:39,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306197594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:39,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:39,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 17:31:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743237168] [2025-03-03 17:31:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:39,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 17:31:39,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:39,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 17:31:39,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:39,680 INFO L87 Difference]: Start difference. First operand 1633 states and 2432 transitions. Second operand has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:40,133 INFO L93 Difference]: Finished difference Result 3036 states and 4520 transitions. [2025-03-03 17:31:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 17:31:40,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 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 820 [2025-03-03 17:31:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:40,136 INFO L225 Difference]: With dead ends: 3036 [2025-03-03 17:31:40,136 INFO L226 Difference]: Without dead ends: 1647 [2025-03-03 17:31:40,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:31:40,137 INFO L435 NwaCegarLoop]: 1708 mSDtfsCounter, 3 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:40,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6818 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 17:31:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2025-03-03 17:31:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1637. [2025-03-03 17:31:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1636 states have (on average 1.4902200488997555) internal successors, (2438), 1636 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2438 transitions. [2025-03-03 17:31:40,149 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2438 transitions. Word has length 820 [2025-03-03 17:31:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:40,149 INFO L471 AbstractCegarLoop]: Abstraction has 1637 states and 2438 transitions. [2025-03-03 17:31:40,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2438 transitions. [2025-03-03 17:31:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2025-03-03 17:31:40,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:40,154 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:40,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 17:31:40,154 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:40,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:40,155 INFO L85 PathProgramCache]: Analyzing trace with hash 99540389, now seen corresponding path program 1 times [2025-03-03 17:31:40,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:40,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514701009] [2025-03-03 17:31:40,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:40,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:40,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 821 statements into 1 equivalence classes. [2025-03-03 17:31:40,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 821 of 821 statements. [2025-03-03 17:31:40,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:40,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-03 17:31:41,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:41,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514701009] [2025-03-03 17:31:41,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514701009] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:41,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:31:41,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:31:41,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839097146] [2025-03-03 17:31:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:41,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:31:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:41,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:31:41,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:31:41,169 INFO L87 Difference]: Start difference. First operand 1637 states and 2438 transitions. Second operand has 4 states, 4 states have (on average 186.75) internal successors, (747), 4 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:41,537 INFO L93 Difference]: Finished difference Result 3050 states and 4542 transitions. [2025-03-03 17:31:41,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:31:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 186.75) internal successors, (747), 4 states have internal predecessors, (747), 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 821 [2025-03-03 17:31:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:41,540 INFO L225 Difference]: With dead ends: 3050 [2025-03-03 17:31:41,540 INFO L226 Difference]: Without dead ends: 1649 [2025-03-03 17:31:41,541 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 [2025-03-03 17:31:41,542 INFO L435 NwaCegarLoop]: 1710 mSDtfsCounter, 4 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:41,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5122 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 17:31:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2025-03-03 17:31:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1643. [2025-03-03 17:31:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1642 states have (on average 1.489646772228989) internal successors, (2446), 1642 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2446 transitions. [2025-03-03 17:31:41,553 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2446 transitions. Word has length 821 [2025-03-03 17:31:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:41,554 INFO L471 AbstractCegarLoop]: Abstraction has 1643 states and 2446 transitions. [2025-03-03 17:31:41,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 186.75) internal successors, (747), 4 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2446 transitions. [2025-03-03 17:31:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2025-03-03 17:31:41,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:41,558 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:41,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-03 17:31:41,559 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:41,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:41,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1708789464, now seen corresponding path program 1 times [2025-03-03 17:31:41,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:41,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918071832] [2025-03-03 17:31:41,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:41,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:41,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 822 statements into 1 equivalence classes. [2025-03-03 17:31:41,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 822 of 822 statements. [2025-03-03 17:31:41,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:41,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 60 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918071832] [2025-03-03 17:31:42,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918071832] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15194181] [2025-03-03 17:31:42,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:42,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:42,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:42,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:42,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 17:31:43,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 822 statements into 1 equivalence classes. [2025-03-03 17:31:43,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 822 of 822 statements. [2025-03-03 17:31:43,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:43,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:43,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 3699 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-03 17:31:43,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:31:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 52 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:43,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 17:31:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:44,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15194181] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:44,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-03 17:31:44,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 13] total 24 [2025-03-03 17:31:44,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762606762] [2025-03-03 17:31:44,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:44,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 17:31:44,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:44,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 17:31:44,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2025-03-03 17:31:44,126 INFO L87 Difference]: Start difference. First operand 1643 states and 2446 transitions. Second operand has 8 states, 8 states have (on average 102.75) internal successors, (822), 8 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:45,413 INFO L93 Difference]: Finished difference Result 4321 states and 6431 transitions. [2025-03-03 17:31:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 17:31:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 102.75) internal successors, (822), 8 states have internal predecessors, (822), 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 822 [2025-03-03 17:31:45,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:45,417 INFO L225 Difference]: With dead ends: 4321 [2025-03-03 17:31:45,418 INFO L226 Difference]: Without dead ends: 2976 [2025-03-03 17:31:45,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1651 GetRequests, 1628 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2025-03-03 17:31:45,419 INFO L435 NwaCegarLoop]: 3297 mSDtfsCounter, 1791 mSDsluCounter, 14884 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 18181 SdHoareTripleChecker+Invalid, 3681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:45,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 18181 Invalid, 3681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 17:31:45,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2025-03-03 17:31:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1776. [2025-03-03 17:31:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1775 states have (on average 1.4901408450704225) internal successors, (2645), 1775 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2645 transitions. [2025-03-03 17:31:45,441 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2645 transitions. Word has length 822 [2025-03-03 17:31:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:45,442 INFO L471 AbstractCegarLoop]: Abstraction has 1776 states and 2645 transitions. [2025-03-03 17:31:45,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 102.75) internal successors, (822), 8 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2645 transitions. [2025-03-03 17:31:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2025-03-03 17:31:45,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:45,447 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:45,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 17:31:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2025-03-03 17:31:45,648 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:45,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:45,651 INFO L85 PathProgramCache]: Analyzing trace with hash 559770074, now seen corresponding path program 1 times [2025-03-03 17:31:45,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:45,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894157987] [2025-03-03 17:31:45,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:45,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:45,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 823 statements into 1 equivalence classes. [2025-03-03 17:31:45,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 823 of 823 statements. [2025-03-03 17:31:45,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:45,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 60 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:46,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894157987] [2025-03-03 17:31:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894157987] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654644304] [2025-03-03 17:31:46,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:46,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:46,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:46,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:46,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 17:31:47,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 823 statements into 1 equivalence classes. [2025-03-03 17:31:47,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 823 of 823 statements. [2025-03-03 17:31:47,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:47,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:47,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 3702 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:31:47,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:31:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-03 17:31:48,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:31:48,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654644304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:48,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:31:48,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:31:48,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343745395] [2025-03-03 17:31:48,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:48,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:31:48,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:48,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:31:48,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:31:48,087 INFO L87 Difference]: Start difference. First operand 1776 states and 2645 transitions. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:49,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:49,541 INFO L93 Difference]: Finished difference Result 4559 states and 6787 transitions. [2025-03-03 17:31:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:31:49,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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 823 [2025-03-03 17:31:49,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:49,545 INFO L225 Difference]: With dead ends: 4559 [2025-03-03 17:31:49,545 INFO L226 Difference]: Without dead ends: 2987 [2025-03-03 17:31:49,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:31:49,547 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1888 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 7016 SdHoareTripleChecker+Invalid, 3409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:49,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 7016 Invalid, 3409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 17:31:49,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2025-03-03 17:31:49,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1784. [2025-03-03 17:31:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.4896242288278183) internal successors, (2656), 1783 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2656 transitions. [2025-03-03 17:31:49,562 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2656 transitions. Word has length 823 [2025-03-03 17:31:49,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:49,562 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2656 transitions. [2025-03-03 17:31:49,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2656 transitions. [2025-03-03 17:31:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2025-03-03 17:31:49,567 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:49,567 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:49,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 17:31:49,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:49,768 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:49,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -352565845, now seen corresponding path program 1 times [2025-03-03 17:31:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93705417] [2025-03-03 17:31:49,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:49,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 824 statements into 1 equivalence classes. [2025-03-03 17:31:49,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 824 of 824 statements. [2025-03-03 17:31:49,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:49,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 60 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:50,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93705417] [2025-03-03 17:31:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93705417] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115096535] [2025-03-03 17:31:50,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:50,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:50,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:50,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:50,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 17:31:51,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 824 statements into 1 equivalence classes. [2025-03-03 17:31:51,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 824 of 824 statements. [2025-03-03 17:31:51,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:51,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:51,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 3705 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:31:51,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:31:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-03 17:31:52,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:31:52,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115096535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:52,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:31:52,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:31:52,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015313152] [2025-03-03 17:31:52,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:52,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:31:52,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:52,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:31:52,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:31:52,118 INFO L87 Difference]: Start difference. First operand 1784 states and 2656 transitions. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:53,607 INFO L93 Difference]: Finished difference Result 4579 states and 6816 transitions. [2025-03-03 17:31:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:31:53,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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 824 [2025-03-03 17:31:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:53,614 INFO L225 Difference]: With dead ends: 4579 [2025-03-03 17:31:53,615 INFO L226 Difference]: Without dead ends: 3007 [2025-03-03 17:31:53,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:31:53,617 INFO L435 NwaCegarLoop]: 1423 mSDtfsCounter, 1898 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 3381 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 7018 SdHoareTripleChecker+Invalid, 3407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:53,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 7018 Invalid, 3407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3381 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 17:31:53,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2025-03-03 17:31:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 1834. [2025-03-03 17:31:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4877250409165304) internal successors, (2727), 1833 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2727 transitions. [2025-03-03 17:31:53,636 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2727 transitions. Word has length 824 [2025-03-03 17:31:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:53,636 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2727 transitions. [2025-03-03 17:31:53,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2727 transitions. [2025-03-03 17:31:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2025-03-03 17:31:53,641 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:53,641 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:53,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-03 17:31:53,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:53,842 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:53,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:53,843 INFO L85 PathProgramCache]: Analyzing trace with hash -739863897, now seen corresponding path program 1 times [2025-03-03 17:31:53,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:53,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761963588] [2025-03-03 17:31:53,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:53,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:53,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 825 statements into 1 equivalence classes. [2025-03-03 17:31:54,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 825 of 825 statements. [2025-03-03 17:31:54,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:54,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 61 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:54,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:54,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761963588] [2025-03-03 17:31:54,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761963588] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:54,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538113104] [2025-03-03 17:31:54,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:54,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:54,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:54,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:54,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 17:31:55,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 825 statements into 1 equivalence classes. [2025-03-03 17:31:56,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 825 of 825 statements. [2025-03-03 17:31:56,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:56,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:56,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 3708 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:31:56,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:31:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-03 17:31:56,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:31:56,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538113104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:31:56,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:31:56,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:31:56,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016676049] [2025-03-03 17:31:56,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:31:56,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:31:56,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:31:56,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:31:56,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:31:56,267 INFO L87 Difference]: Start difference. First operand 1834 states and 2727 transitions. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:31:57,721 INFO L93 Difference]: Finished difference Result 4603 states and 6846 transitions. [2025-03-03 17:31:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:31:57,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 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 825 [2025-03-03 17:31:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:31:57,726 INFO L225 Difference]: With dead ends: 4603 [2025-03-03 17:31:57,726 INFO L226 Difference]: Without dead ends: 2991 [2025-03-03 17:31:57,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 823 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:31:57,728 INFO L435 NwaCegarLoop]: 1424 mSDtfsCounter, 1887 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 3379 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 7020 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:31:57,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 7020 Invalid, 3405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 17:31:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2025-03-03 17:31:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1834. [2025-03-03 17:31:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4871794871794872) internal successors, (2726), 1833 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2726 transitions. [2025-03-03 17:31:57,746 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2726 transitions. Word has length 825 [2025-03-03 17:31:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:31:57,746 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2726 transitions. [2025-03-03 17:31:57,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:31:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2726 transitions. [2025-03-03 17:31:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2025-03-03 17:31:57,751 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:31:57,751 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:31:57,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-03 17:31:57,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-03 17:31:57,952 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:31:57,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:31:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1327816494, now seen corresponding path program 1 times [2025-03-03 17:31:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:31:57,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333779658] [2025-03-03 17:31:57,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:57,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:31:58,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 826 statements into 1 equivalence classes. [2025-03-03 17:31:58,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 826 of 826 statements. [2025-03-03 17:31:58,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:31:58,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:31:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 61 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:31:58,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:31:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333779658] [2025-03-03 17:31:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333779658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:31:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690359867] [2025-03-03 17:31:58,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:31:58,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:31:58,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:31:58,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:31:58,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-03 17:31:59,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 826 statements into 1 equivalence classes. [2025-03-03 17:32:00,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 826 of 826 statements. [2025-03-03 17:32:00,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:00,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:00,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 3711 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:32:00,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:32:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-03 17:32:00,458 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:32:00,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690359867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:32:00,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:32:00,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:32:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388564164] [2025-03-03 17:32:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:32:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:32:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:32:00,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:32:00,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:32:00,459 INFO L87 Difference]: Start difference. First operand 1834 states and 2726 transitions. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:32:01,912 INFO L93 Difference]: Finished difference Result 4595 states and 6833 transitions. [2025-03-03 17:32:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:32:01,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 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 826 [2025-03-03 17:32:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:32:01,917 INFO L225 Difference]: With dead ends: 4595 [2025-03-03 17:32:01,917 INFO L226 Difference]: Without dead ends: 2999 [2025-03-03 17:32:01,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:32:01,919 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 1891 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 7022 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:32:01,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 7022 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 17:32:01,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2025-03-03 17:32:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 1834. [2025-03-03 17:32:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.486088379705401) internal successors, (2724), 1833 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2724 transitions. [2025-03-03 17:32:01,936 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2724 transitions. Word has length 826 [2025-03-03 17:32:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:32:01,937 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2724 transitions. [2025-03-03 17:32:01,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2724 transitions. [2025-03-03 17:32:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2025-03-03 17:32:01,941 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:32:01,942 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:32:01,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-03 17:32:02,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:02,142 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:32:02,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:32:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1624573336, now seen corresponding path program 1 times [2025-03-03 17:32:02,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:32:02,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390950246] [2025-03-03 17:32:02,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:02,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:32:02,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 827 statements into 1 equivalence classes. [2025-03-03 17:32:02,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 827 of 827 statements. [2025-03-03 17:32:02,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:02,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 61 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:32:03,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:32:03,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390950246] [2025-03-03 17:32:03,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390950246] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:32:03,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113904927] [2025-03-03 17:32:03,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:03,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:03,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:32:03,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:32:03,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-03 17:32:03,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 827 statements into 1 equivalence classes. [2025-03-03 17:32:04,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 827 of 827 statements. [2025-03-03 17:32:04,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:04,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:04,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 3714 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:32:04,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:32:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-03 17:32:04,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:32:04,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113904927] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:32:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:32:04,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:32:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151311783] [2025-03-03 17:32:04,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:32:04,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:32:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:32:04,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:32:04,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:32:04,795 INFO L87 Difference]: Start difference. First operand 1834 states and 2724 transitions. Second operand has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:32:05,971 INFO L93 Difference]: Finished difference Result 4579 states and 6809 transitions. [2025-03-03 17:32:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:32:05,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 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 827 [2025-03-03 17:32:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:32:05,976 INFO L225 Difference]: With dead ends: 4579 [2025-03-03 17:32:05,976 INFO L226 Difference]: Without dead ends: 3003 [2025-03-03 17:32:05,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:32:05,978 INFO L435 NwaCegarLoop]: 1426 mSDtfsCounter, 3653 mSDsluCounter, 4383 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 17:32:05,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 5809 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2621 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 17:32:05,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2025-03-03 17:32:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 1834. [2025-03-03 17:32:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4849972722313147) internal successors, (2722), 1833 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2722 transitions. [2025-03-03 17:32:05,998 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2722 transitions. Word has length 827 [2025-03-03 17:32:05,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:32:05,998 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2722 transitions. [2025-03-03 17:32:05,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2722 transitions. [2025-03-03 17:32:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2025-03-03 17:32:06,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:32:06,004 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:32:06,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-03 17:32:06,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:06,205 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:32:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:32:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1461807332, now seen corresponding path program 1 times [2025-03-03 17:32:06,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:32:06,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338905787] [2025-03-03 17:32:06,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:32:06,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 828 statements into 1 equivalence classes. [2025-03-03 17:32:06,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 828 of 828 statements. [2025-03-03 17:32:06,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:06,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 62 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:32:07,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:32:07,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338905787] [2025-03-03 17:32:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338905787] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:32:07,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216321974] [2025-03-03 17:32:07,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:07,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:32:07,238 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:32:07,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-03 17:32:07,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 828 statements into 1 equivalence classes. [2025-03-03 17:32:08,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 828 of 828 statements. [2025-03-03 17:32:08,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:08,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:08,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 3717 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:32:08,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:32:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-03 17:32:08,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:32:08,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216321974] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:32:08,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:32:08,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:32:08,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852775536] [2025-03-03 17:32:08,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:32:08,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:32:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:32:08,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:32:08,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:32:08,829 INFO L87 Difference]: Start difference. First operand 1834 states and 2722 transitions. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:32:09,944 INFO L93 Difference]: Finished difference Result 4591 states and 6827 transitions. [2025-03-03 17:32:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:32:09,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 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 828 [2025-03-03 17:32:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:32:09,948 INFO L225 Difference]: With dead ends: 4591 [2025-03-03 17:32:09,948 INFO L226 Difference]: Without dead ends: 3019 [2025-03-03 17:32:09,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:32:09,949 INFO L435 NwaCegarLoop]: 1427 mSDtfsCounter, 3667 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 17:32:09,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 5811 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 17:32:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2025-03-03 17:32:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 1868. [2025-03-03 17:32:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1867 states have (on average 1.4825923942153187) internal successors, (2768), 1867 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2768 transitions. [2025-03-03 17:32:09,965 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2768 transitions. Word has length 828 [2025-03-03 17:32:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:32:09,966 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2768 transitions. [2025-03-03 17:32:09,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2768 transitions. [2025-03-03 17:32:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-03 17:32:09,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:32:09,970 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:32:09,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-03 17:32:10,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-03 17:32:10,171 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:32:10,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:32:10,172 INFO L85 PathProgramCache]: Analyzing trace with hash 676780775, now seen corresponding path program 1 times [2025-03-03 17:32:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:32:10,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492580520] [2025-03-03 17:32:10,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:10,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:32:10,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 829 statements into 1 equivalence classes. [2025-03-03 17:32:10,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 829 of 829 statements. [2025-03-03 17:32:10,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:10,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 63 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:32:11,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:32:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492580520] [2025-03-03 17:32:11,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492580520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:32:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494024586] [2025-03-03 17:32:11,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:11,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:32:11,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:32:11,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-03 17:32:11,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 829 statements into 1 equivalence classes. [2025-03-03 17:32:12,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 829 of 829 statements. [2025-03-03 17:32:12,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:12,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:12,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 3720 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:32:12,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:32:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 17:32:12,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:32:12,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494024586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:32:12,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:32:12,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:32:12,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724474628] [2025-03-03 17:32:12,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:32:12,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:32:12,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:32:12,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:32:12,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:32:12,691 INFO L87 Difference]: Start difference. First operand 1868 states and 2768 transitions. Second operand has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:32:14,149 INFO L93 Difference]: Finished difference Result 4595 states and 6831 transitions. [2025-03-03 17:32:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:32:14,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 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 829 [2025-03-03 17:32:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:32:14,152 INFO L225 Difference]: With dead ends: 4595 [2025-03-03 17:32:14,152 INFO L226 Difference]: Without dead ends: 3023 [2025-03-03 17:32:14,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:32:14,154 INFO L435 NwaCegarLoop]: 1428 mSDtfsCounter, 1898 mSDsluCounter, 5600 mSDsCounter, 0 mSdLazyCounter, 3371 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 7028 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-03 17:32:14,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 7028 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3371 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-03 17:32:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2025-03-03 17:32:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1882. [2025-03-03 17:32:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1881 states have (on average 1.4811270600744284) internal successors, (2786), 1881 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2786 transitions. [2025-03-03 17:32:14,168 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2786 transitions. Word has length 829 [2025-03-03 17:32:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:32:14,169 INFO L471 AbstractCegarLoop]: Abstraction has 1882 states and 2786 transitions. [2025-03-03 17:32:14,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2786 transitions. [2025-03-03 17:32:14,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-03-03 17:32:14,173 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:32:14,173 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:32:14,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-03 17:32:14,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-03 17:32:14,374 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:32:14,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:32:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash -783022962, now seen corresponding path program 1 times [2025-03-03 17:32:14,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:32:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215225894] [2025-03-03 17:32:14,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:32:14,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-03 17:32:14,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-03 17:32:14,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:14,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 63 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:32:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:32:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215225894] [2025-03-03 17:32:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215225894] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 17:32:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835440049] [2025-03-03 17:32:15,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:15,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:32:15,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:32:15,447 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:32:15,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-03 17:32:16,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-03 17:32:16,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-03 17:32:16,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:16,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:32:16,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 3723 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-03 17:32:16,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:32:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 17:32:16,977 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:32:16,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835440049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:32:16,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 17:32:16,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-03-03 17:32:16,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934336160] [2025-03-03 17:32:16,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:32:16,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 17:32:16,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:32:16,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 17:32:16,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-03 17:32:16,979 INFO L87 Difference]: Start difference. First operand 1882 states and 2786 transitions. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:32:18,107 INFO L93 Difference]: Finished difference Result 4611 states and 6847 transitions. [2025-03-03 17:32:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 17:32:18,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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 830 [2025-03-03 17:32:18,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:32:18,110 INFO L225 Difference]: With dead ends: 4611 [2025-03-03 17:32:18,110 INFO L226 Difference]: Without dead ends: 3015 [2025-03-03 17:32:18,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 828 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-03 17:32:18,112 INFO L435 NwaCegarLoop]: 1429 mSDtfsCounter, 3659 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 2615 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 5815 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 17:32:18,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3659 Valid, 5815 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2615 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 17:32:18,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2025-03-03 17:32:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 1882. [2025-03-03 17:32:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1881 states have (on average 1.4800637958532696) internal successors, (2784), 1881 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2784 transitions. [2025-03-03 17:32:18,130 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2784 transitions. Word has length 830 [2025-03-03 17:32:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:32:18,130 INFO L471 AbstractCegarLoop]: Abstraction has 1882 states and 2784 transitions. [2025-03-03 17:32:18,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:32:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2784 transitions. [2025-03-03 17:32:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2025-03-03 17:32:18,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:32:18,136 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 17:32:18,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-03 17:32:18,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-03 17:32:18,336 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:32:18,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:32:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1758709255, now seen corresponding path program 1 times [2025-03-03 17:32:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:32:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672739366] [2025-03-03 17:32:18,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:32:18,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:32:18,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 831 statements into 1 equivalence classes. [2025-03-03 17:32:18,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 831 of 831 statements. [2025-03-03 17:32:18,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:32:18,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat