./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem04_label20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem04_label20.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fae5bfb0e4c04c676fd16fa1876270206ad053d531e744651b03e04ab810bea9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 10:51:02,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 10:51:02,402 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 10:51:02,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 10:51:02,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 10:51:02,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 10:51:02,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 10:51:02,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 10:51:02,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 10:51:02,427 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 10:51:02,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 10:51:02,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 10:51:02,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 10:51:02,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 10:51:02,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 10:51:02,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 10:51:02,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 10:51:02,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 10:51:02,430 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fae5bfb0e4c04c676fd16fa1876270206ad053d531e744651b03e04ab810bea9 [2025-02-05 10:51:02,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 10:51:02,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 10:51:02,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 10:51:02,673 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 10:51:02,673 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 10:51:02,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem04_label20.c [2025-02-05 10:51:03,909 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03d9f4595/2d76585f9292421f9e373f26c5db4dfb/FLAGfaee53375 [2025-02-05 10:51:04,314 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 10:51:04,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label20.c [2025-02-05 10:51:04,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03d9f4595/2d76585f9292421f9e373f26c5db4dfb/FLAGfaee53375 [2025-02-05 10:51:04,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03d9f4595/2d76585f9292421f9e373f26c5db4dfb [2025-02-05 10:51:04,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 10:51:04,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 10:51:04,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 10:51:04,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 10:51:04,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 10:51:04,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:51:04" (1/1) ... [2025-02-05 10:51:04,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19688109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:04, skipping insertion in model container [2025-02-05 10:51:04,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:51:04" (1/1) ... [2025-02-05 10:51:04,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 10:51:05,229 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label20.c[181417,181430] [2025-02-05 10:51:05,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 10:51:05,251 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 10:51:05,515 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label20.c[181417,181430] [2025-02-05 10:51:05,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 10:51:05,537 INFO L204 MainTranslator]: Completed translation [2025-02-05 10:51:05,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05 WrapperNode [2025-02-05 10:51:05,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 10:51:05,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 10:51:05,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 10:51:05,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 10:51:05,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,731 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5573 [2025-02-05 10:51:05,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 10:51:05,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 10:51:05,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 10:51:05,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 10:51:05,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,810 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 10:51:05,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,941 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 10:51:05,988 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 10:51:05,989 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 10:51:05,989 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 10:51:05,989 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (1/1) ... [2025-02-05 10:51:05,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 10:51:06,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 10:51:06,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 10:51:06,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 10:51:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 10:51:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 10:51:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 10:51:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 10:51:06,098 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 10:51:06,100 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 10:51:09,388 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4081: havoc calculate_output3_#t~ret11#1; [2025-02-05 10:51:09,390 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1382: havoc calculate_output_#t~ret9#1; [2025-02-05 10:51:09,390 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2719: havoc calculate_output2_#t~ret10#1; [2025-02-05 10:51:09,483 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2025-02-05 10:51:09,483 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 10:51:09,512 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 10:51:09,515 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 10:51:09,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:51:09 BoogieIcfgContainer [2025-02-05 10:51:09,516 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 10:51:09,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 10:51:09,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 10:51:09,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 10:51:09,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:51:04" (1/3) ... [2025-02-05 10:51:09,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648a7085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:51:09, skipping insertion in model container [2025-02-05 10:51:09,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:51:05" (2/3) ... [2025-02-05 10:51:09,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648a7085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:51:09, skipping insertion in model container [2025-02-05 10:51:09,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:51:09" (3/3) ... [2025-02-05 10:51:09,525 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem04_label20.c [2025-02-05 10:51:09,536 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 10:51:09,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem04_label20.c that has 1 procedures, 885 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 10:51:09,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 10:51:09,609 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;@1cad6dae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 10:51:09,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 10:51:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 883 states have (on average 1.9218573046432617) internal successors, (1697), 884 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2025-02-05 10:51:09,637 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:09,638 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:09,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:09,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1281435857, now seen corresponding path program 1 times [2025-02-05 10:51:09,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:09,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032518857] [2025-02-05 10:51:09,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:09,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:09,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 793 statements into 1 equivalence classes. [2025-02-05 10:51:10,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 793 of 793 statements. [2025-02-05 10:51:10,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:10,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 10:51:11,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032518857] [2025-02-05 10:51:11,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032518857] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:11,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:11,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139995149] [2025-02-05 10:51:11,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:11,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:11,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:11,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:11,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:11,453 INFO L87 Difference]: Start difference. First operand has 885 states, 883 states have (on average 1.9218573046432617) internal successors, (1697), 884 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 2 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) [2025-02-05 10:51:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:14,201 INFO L93 Difference]: Finished difference Result 2589 states and 5025 transitions. [2025-02-05 10:51:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 2 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 793 [2025-02-05 10:51:14,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:14,217 INFO L225 Difference]: With dead ends: 2589 [2025-02-05 10:51:14,217 INFO L226 Difference]: Without dead ends: 1640 [2025-02-05 10:51:14,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:14,224 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 258 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 1137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1137 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:14,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 516 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1137 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-05 10:51:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2025-02-05 10:51:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2025-02-05 10:51:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1639 states have (on average 1.6375838926174497) internal successors, (2684), 1639 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2684 transitions. [2025-02-05 10:51:14,315 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2684 transitions. Word has length 793 [2025-02-05 10:51:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:14,317 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2684 transitions. [2025-02-05 10:51:14,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 2 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) [2025-02-05 10:51:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2684 transitions. [2025-02-05 10:51:14,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2025-02-05 10:51:14,334 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:14,334 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:14,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 10:51:14,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:14,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1777599406, now seen corresponding path program 1 times [2025-02-05 10:51:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323864145] [2025-02-05 10:51:14,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:14,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 804 statements into 1 equivalence classes. [2025-02-05 10:51:14,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 804 of 804 statements. [2025-02-05 10:51:14,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:14,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 10:51:14,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323864145] [2025-02-05 10:51:14,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323864145] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:14,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499527394] [2025-02-05 10:51:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:14,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:14,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:14,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:14,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:14,945 INFO L87 Difference]: Start difference. First operand 1640 states and 2684 transitions. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:17,676 INFO L93 Difference]: Finished difference Result 4914 states and 8047 transitions. [2025-02-05 10:51:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 0 states have call successors, (0), 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 804 [2025-02-05 10:51:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:17,701 INFO L225 Difference]: With dead ends: 4914 [2025-02-05 10:51:17,706 INFO L226 Difference]: Without dead ends: 3276 [2025-02-05 10:51:17,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:17,717 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 987 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:17,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 243 Invalid, 3387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1115 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-05 10:51:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2025-02-05 10:51:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3276. [2025-02-05 10:51:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 3275 states have (on average 1.540763358778626) internal successors, (5046), 3275 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 5046 transitions. [2025-02-05 10:51:17,843 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 5046 transitions. Word has length 804 [2025-02-05 10:51:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:17,843 INFO L471 AbstractCegarLoop]: Abstraction has 3276 states and 5046 transitions. [2025-02-05 10:51:17,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 2 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 5046 transitions. [2025-02-05 10:51:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2025-02-05 10:51:17,855 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:17,856 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:17,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 10:51:17,856 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:17,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:17,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1661263391, now seen corresponding path program 1 times [2025-02-05 10:51:17,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:17,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571814058] [2025-02-05 10:51:17,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:17,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:17,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 842 statements into 1 equivalence classes. [2025-02-05 10:51:17,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 842 of 842 statements. [2025-02-05 10:51:17,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:17,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 10:51:18,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571814058] [2025-02-05 10:51:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571814058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:18,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:18,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:18,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699574836] [2025-02-05 10:51:18,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:18,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:18,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:18,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:18,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:18,530 INFO L87 Difference]: Start difference. First operand 3276 states and 5046 transitions. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:21,202 INFO L93 Difference]: Finished difference Result 9822 states and 15133 transitions. [2025-02-05 10:51:21,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:21,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 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 842 [2025-02-05 10:51:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:21,221 INFO L225 Difference]: With dead ends: 9822 [2025-02-05 10:51:21,221 INFO L226 Difference]: Without dead ends: 6548 [2025-02-05 10:51:21,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:21,226 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 978 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:21,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 198 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-05 10:51:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2025-02-05 10:51:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 6548. [2025-02-05 10:51:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6548 states, 6547 states have (on average 1.4777760806476248) internal successors, (9675), 6547 states have internal predecessors, (9675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 9675 transitions. [2025-02-05 10:51:21,336 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 9675 transitions. Word has length 842 [2025-02-05 10:51:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:21,337 INFO L471 AbstractCegarLoop]: Abstraction has 6548 states and 9675 transitions. [2025-02-05 10:51:21,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 9675 transitions. [2025-02-05 10:51:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2025-02-05 10:51:21,349 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:21,350 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:21,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 10:51:21,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:21,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1028043271, now seen corresponding path program 1 times [2025-02-05 10:51:21,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:21,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597159885] [2025-02-05 10:51:21,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:21,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:21,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 873 statements into 1 equivalence classes. [2025-02-05 10:51:21,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 873 of 873 statements. [2025-02-05 10:51:21,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:21,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 10:51:22,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:22,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597159885] [2025-02-05 10:51:22,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597159885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:22,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:22,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:22,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144137553] [2025-02-05 10:51:22,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:22,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:22,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:22,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:22,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:22,048 INFO L87 Difference]: Start difference. First operand 6548 states and 9675 transitions. Second operand has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 2 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:24,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:24,391 INFO L93 Difference]: Finished difference Result 19638 states and 29020 transitions. [2025-02-05 10:51:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:24,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 2 states have internal predecessors, (853), 0 states have call successors, (0), 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 873 [2025-02-05 10:51:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:24,423 INFO L225 Difference]: With dead ends: 19638 [2025-02-05 10:51:24,423 INFO L226 Difference]: Without dead ends: 13092 [2025-02-05 10:51:24,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:24,432 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 842 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2923 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:24,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 375 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-05 10:51:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2025-02-05 10:51:24,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 13092. [2025-02-05 10:51:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13092 states, 13091 states have (on average 1.42639981666794) internal successors, (18673), 13091 states have internal predecessors, (18673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13092 states to 13092 states and 18673 transitions. [2025-02-05 10:51:24,711 INFO L78 Accepts]: Start accepts. Automaton has 13092 states and 18673 transitions. Word has length 873 [2025-02-05 10:51:24,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:24,711 INFO L471 AbstractCegarLoop]: Abstraction has 13092 states and 18673 transitions. [2025-02-05 10:51:24,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 2 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:24,716 INFO L276 IsEmpty]: Start isEmpty. Operand 13092 states and 18673 transitions. [2025-02-05 10:51:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2025-02-05 10:51:24,740 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:24,740 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:24,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 10:51:24,741 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:24,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash -470936649, now seen corresponding path program 1 times [2025-02-05 10:51:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:24,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669574190] [2025-02-05 10:51:24,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:24,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:24,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 893 statements into 1 equivalence classes. [2025-02-05 10:51:24,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 893 of 893 statements. [2025-02-05 10:51:24,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:24,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 10:51:25,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:25,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669574190] [2025-02-05 10:51:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669574190] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:51:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363877889] [2025-02-05 10:51:25,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:25,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:25,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:25,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:25,269 INFO L87 Difference]: Start difference. First operand 13092 states and 18673 transitions. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:27,768 INFO L93 Difference]: Finished difference Result 39270 states and 56014 transitions. [2025-02-05 10:51:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:27,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 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 893 [2025-02-05 10:51:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:27,813 INFO L225 Difference]: With dead ends: 39270 [2025-02-05 10:51:27,813 INFO L226 Difference]: Without dead ends: 26180 [2025-02-05 10:51:27,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:27,825 INFO L435 NwaCegarLoop]: 1486 mSDtfsCounter, 768 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:27,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1494 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-05 10:51:27,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26180 states. [2025-02-05 10:51:28,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26180 to 26180. [2025-02-05 10:51:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26180 states, 26179 states have (on average 1.3664005500592078) internal successors, (35771), 26179 states have internal predecessors, (35771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26180 states to 26180 states and 35771 transitions. [2025-02-05 10:51:28,115 INFO L78 Accepts]: Start accepts. Automaton has 26180 states and 35771 transitions. Word has length 893 [2025-02-05 10:51:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:28,116 INFO L471 AbstractCegarLoop]: Abstraction has 26180 states and 35771 transitions. [2025-02-05 10:51:28,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 26180 states and 35771 transitions. [2025-02-05 10:51:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2025-02-05 10:51:28,151 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:28,152 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:28,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 10:51:28,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:28,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1592752672, now seen corresponding path program 1 times [2025-02-05 10:51:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:28,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674940372] [2025-02-05 10:51:28,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:28,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 927 statements into 1 equivalence classes. [2025-02-05 10:51:28,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 927 of 927 statements. [2025-02-05 10:51:28,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:28,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-02-05 10:51:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674940372] [2025-02-05 10:51:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674940372] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:28,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131387989] [2025-02-05 10:51:28,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:28,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:28,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:28,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:28,881 INFO L87 Difference]: Start difference. First operand 26180 states and 35771 transitions. Second operand has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 2 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:31,405 INFO L93 Difference]: Finished difference Result 64628 states and 87974 transitions. [2025-02-05 10:51:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:31,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 2 states have internal predecessors, (902), 0 states have call successors, (0), 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 927 [2025-02-05 10:51:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:31,481 INFO L225 Difference]: With dead ends: 64628 [2025-02-05 10:51:31,481 INFO L226 Difference]: Without dead ends: 38450 [2025-02-05 10:51:31,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:31,504 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 928 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:31,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 311 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-05 10:51:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38450 states. [2025-02-05 10:51:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38450 to 38450. [2025-02-05 10:51:31,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38450 states, 38449 states have (on average 1.249005175687274) internal successors, (48023), 38449 states have internal predecessors, (48023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38450 states to 38450 states and 48023 transitions. [2025-02-05 10:51:31,918 INFO L78 Accepts]: Start accepts. Automaton has 38450 states and 48023 transitions. Word has length 927 [2025-02-05 10:51:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:31,919 INFO L471 AbstractCegarLoop]: Abstraction has 38450 states and 48023 transitions. [2025-02-05 10:51:31,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 2 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 38450 states and 48023 transitions. [2025-02-05 10:51:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2025-02-05 10:51:31,956 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:31,957 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:31,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 10:51:31,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:31,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:31,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1382331659, now seen corresponding path program 1 times [2025-02-05 10:51:31,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:31,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92386490] [2025-02-05 10:51:31,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:32,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 974 statements into 1 equivalence classes. [2025-02-05 10:51:32,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 974 of 974 statements. [2025-02-05 10:51:32,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:32,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-02-05 10:51:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:32,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92386490] [2025-02-05 10:51:32,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92386490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:32,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:32,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190699014] [2025-02-05 10:51:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:32,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:32,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:32,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:32,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:32,447 INFO L87 Difference]: Start difference. First operand 38450 states and 48023 transitions. Second operand has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 2 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:34,829 INFO L93 Difference]: Finished difference Result 109618 states and 137174 transitions. [2025-02-05 10:51:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:34,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 2 states have internal predecessors, (937), 0 states have call successors, (0), 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 974 [2025-02-05 10:51:34,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:35,042 INFO L225 Difference]: With dead ends: 109618 [2025-02-05 10:51:35,042 INFO L226 Difference]: Without dead ends: 71170 [2025-02-05 10:51:35,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:35,092 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 954 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:35,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 474 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-05 10:51:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71170 states. [2025-02-05 10:51:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71170 to 59718. [2025-02-05 10:51:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59718 states, 59717 states have (on average 1.2051007250866588) internal successors, (71965), 59717 states have internal predecessors, (71965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59718 states to 59718 states and 71965 transitions. [2025-02-05 10:51:35,895 INFO L78 Accepts]: Start accepts. Automaton has 59718 states and 71965 transitions. Word has length 974 [2025-02-05 10:51:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:35,895 INFO L471 AbstractCegarLoop]: Abstraction has 59718 states and 71965 transitions. [2025-02-05 10:51:35,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 2 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand 59718 states and 71965 transitions. [2025-02-05 10:51:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2025-02-05 10:51:35,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:35,952 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:51:35,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 10:51:35,953 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:35,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash 606736615, now seen corresponding path program 1 times [2025-02-05 10:51:35,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:35,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142371964] [2025-02-05 10:51:35,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:36,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1166 statements into 1 equivalence classes. [2025-02-05 10:51:36,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1166 of 1166 statements. [2025-02-05 10:51:36,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:36,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-02-05 10:51:37,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142371964] [2025-02-05 10:51:37,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142371964] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:37,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:37,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:51:37,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796297803] [2025-02-05 10:51:37,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:37,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:37,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:37,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:37,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:37,060 INFO L87 Difference]: Start difference. First operand 59718 states and 71965 transitions. Second operand has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:39,463 INFO L93 Difference]: Finished difference Result 121070 states and 145630 transitions. [2025-02-05 10:51:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 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 1166 [2025-02-05 10:51:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:39,548 INFO L225 Difference]: With dead ends: 121070 [2025-02-05 10:51:39,549 INFO L226 Difference]: Without dead ends: 61354 [2025-02-05 10:51:39,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:39,579 INFO L435 NwaCegarLoop]: 649 mSDtfsCounter, 823 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:39,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 657 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-05 10:51:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61354 states. [2025-02-05 10:51:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61354 to 61354. [2025-02-05 10:51:40,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61354 states, 61353 states have (on average 1.1973823610907373) internal successors, (73463), 61353 states have internal predecessors, (73463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61354 states to 61354 states and 73463 transitions. [2025-02-05 10:51:40,227 INFO L78 Accepts]: Start accepts. Automaton has 61354 states and 73463 transitions. Word has length 1166 [2025-02-05 10:51:40,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:40,228 INFO L471 AbstractCegarLoop]: Abstraction has 61354 states and 73463 transitions. [2025-02-05 10:51:40,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:40,229 INFO L276 IsEmpty]: Start isEmpty. Operand 61354 states and 73463 transitions. [2025-02-05 10:51:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1215 [2025-02-05 10:51:40,265 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:40,265 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:51:40,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 10:51:40,266 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:40,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:40,267 INFO L85 PathProgramCache]: Analyzing trace with hash -715867148, now seen corresponding path program 1 times [2025-02-05 10:51:40,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:40,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163315698] [2025-02-05 10:51:40,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:40,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:40,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1214 statements into 1 equivalence classes. [2025-02-05 10:51:40,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1214 of 1214 statements. [2025-02-05 10:51:40,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:40,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-02-05 10:51:41,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:41,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163315698] [2025-02-05 10:51:41,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163315698] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:41,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:41,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:51:41,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496160537] [2025-02-05 10:51:41,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:41,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:41,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:41,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:41,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:41,293 INFO L87 Difference]: Start difference. First operand 61354 states and 73463 transitions. Second operand has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 2 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:43,735 INFO L93 Difference]: Finished difference Result 125978 states and 150430 transitions. [2025-02-05 10:51:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:43,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 2 states have internal predecessors, (917), 0 states have call successors, (0), 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 1214 [2025-02-05 10:51:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:43,804 INFO L225 Difference]: With dead ends: 125978 [2025-02-05 10:51:43,804 INFO L226 Difference]: Without dead ends: 64626 [2025-02-05 10:51:43,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:43,847 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 731 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 795 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:43,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 519 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [795 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-05 10:51:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64626 states. [2025-02-05 10:51:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64626 to 64626. [2025-02-05 10:51:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64626 states, 64625 states have (on average 1.1859961315280465) internal successors, (76645), 64625 states have internal predecessors, (76645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64626 states to 64626 states and 76645 transitions. [2025-02-05 10:51:44,483 INFO L78 Accepts]: Start accepts. Automaton has 64626 states and 76645 transitions. Word has length 1214 [2025-02-05 10:51:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:44,483 INFO L471 AbstractCegarLoop]: Abstraction has 64626 states and 76645 transitions. [2025-02-05 10:51:44,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 2 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 64626 states and 76645 transitions. [2025-02-05 10:51:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1230 [2025-02-05 10:51:44,519 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:44,520 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:51:44,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 10:51:44,520 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -162805203, now seen corresponding path program 1 times [2025-02-05 10:51:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:44,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306001985] [2025-02-05 10:51:44,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:44,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:44,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1229 statements into 1 equivalence classes. [2025-02-05 10:51:44,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1229 of 1229 statements. [2025-02-05 10:51:44,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:44,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2025-02-05 10:51:45,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:45,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306001985] [2025-02-05 10:51:45,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306001985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:45,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:45,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:51:45,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388404258] [2025-02-05 10:51:45,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:45,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:51:45,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:45,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:51:45,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:45,238 INFO L87 Difference]: Start difference. First operand 64626 states and 76645 transitions. Second operand has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:48,100 INFO L93 Difference]: Finished difference Result 146428 states and 174327 transitions. [2025-02-05 10:51:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:51:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 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 1229 [2025-02-05 10:51:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:48,213 INFO L225 Difference]: With dead ends: 146428 [2025-02-05 10:51:48,213 INFO L226 Difference]: Without dead ends: 81804 [2025-02-05 10:51:48,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:51:48,240 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 914 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:48,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 426 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-05 10:51:48,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81804 states. [2025-02-05 10:51:48,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81804 to 81804. [2025-02-05 10:51:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81804 states, 81803 states have (on average 1.166925418383189) internal successors, (95458), 81803 states have internal predecessors, (95458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81804 states to 81804 states and 95458 transitions. [2025-02-05 10:51:49,047 INFO L78 Accepts]: Start accepts. Automaton has 81804 states and 95458 transitions. Word has length 1229 [2025-02-05 10:51:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:49,048 INFO L471 AbstractCegarLoop]: Abstraction has 81804 states and 95458 transitions. [2025-02-05 10:51:49,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 81804 states and 95458 transitions. [2025-02-05 10:51:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2025-02-05 10:51:49,087 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:49,088 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:51:49,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 10:51:49,088 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:49,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash 39839292, now seen corresponding path program 1 times [2025-02-05 10:51:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:49,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623255731] [2025-02-05 10:51:49,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:49,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:49,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1241 statements into 1 equivalence classes. [2025-02-05 10:51:49,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1241 of 1241 statements. [2025-02-05 10:51:49,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:49,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-05 10:51:51,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:51,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623255731] [2025-02-05 10:51:51,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623255731] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:51,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:51,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 10:51:51,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768985100] [2025-02-05 10:51:51,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:51,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 10:51:51,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:51,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 10:51:51,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 10:51:51,041 INFO L87 Difference]: Start difference. First operand 81804 states and 95458 transitions. Second operand has 6 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:51:54,617 INFO L93 Difference]: Finished difference Result 164424 states and 191756 transitions. [2025-02-05 10:51:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 10:51:54,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 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 1241 [2025-02-05 10:51:54,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:51:54,702 INFO L225 Difference]: With dead ends: 164424 [2025-02-05 10:51:54,703 INFO L226 Difference]: Without dead ends: 82622 [2025-02-05 10:51:54,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-05 10:51:54,752 INFO L435 NwaCegarLoop]: 759 mSDtfsCounter, 935 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 6017 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 6034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 6017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-05 10:51:54,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1851 Invalid, 6034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 6017 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-05 10:51:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82622 states. [2025-02-05 10:51:55,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82622 to 82622. [2025-02-05 10:51:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82622 states, 82621 states have (on average 1.165345372241924) internal successors, (96282), 82621 states have internal predecessors, (96282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82622 states to 82622 states and 96282 transitions. [2025-02-05 10:51:55,706 INFO L78 Accepts]: Start accepts. Automaton has 82622 states and 96282 transitions. Word has length 1241 [2025-02-05 10:51:55,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:51:55,707 INFO L471 AbstractCegarLoop]: Abstraction has 82622 states and 96282 transitions. [2025-02-05 10:51:55,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:51:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 82622 states and 96282 transitions. [2025-02-05 10:51:55,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2025-02-05 10:51:55,745 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:51:55,746 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:51:55,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 10:51:55,746 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:51:55,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:51:55,747 INFO L85 PathProgramCache]: Analyzing trace with hash 200981603, now seen corresponding path program 1 times [2025-02-05 10:51:55,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:51:55,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873809720] [2025-02-05 10:51:55,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:51:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:51:55,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1256 statements into 1 equivalence classes. [2025-02-05 10:51:55,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1256 of 1256 statements. [2025-02-05 10:51:55,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:51:55,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:51:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-05 10:51:57,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:51:57,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873809720] [2025-02-05 10:51:58,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873809720] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:51:58,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:51:58,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 10:51:58,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252686108] [2025-02-05 10:51:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:51:58,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 10:51:58,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:51:58,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 10:51:58,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 10:51:58,003 INFO L87 Difference]: Start difference. First operand 82622 states and 96282 transitions. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 5 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:52:02,782 INFO L93 Difference]: Finished difference Result 166878 states and 194282 transitions. [2025-02-05 10:52:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 10:52:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 5 states have internal predecessors, (1136), 0 states have call successors, (0), 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 1256 [2025-02-05 10:52:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:52:02,885 INFO L225 Difference]: With dead ends: 166878 [2025-02-05 10:52:02,885 INFO L226 Difference]: Without dead ends: 85076 [2025-02-05 10:52:02,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-05 10:52:02,942 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 1535 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 8283 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 8316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 8283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-02-05 10:52:02,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1830 Invalid, 8316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 8283 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-02-05 10:52:03,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85076 states. [2025-02-05 10:52:03,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85076 to 85076. [2025-02-05 10:52:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85076 states, 85075 states have (on average 1.161140170437849) internal successors, (98784), 85075 states have internal predecessors, (98784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85076 states to 85076 states and 98784 transitions. [2025-02-05 10:52:03,984 INFO L78 Accepts]: Start accepts. Automaton has 85076 states and 98784 transitions. Word has length 1256 [2025-02-05 10:52:03,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:52:03,984 INFO L471 AbstractCegarLoop]: Abstraction has 85076 states and 98784 transitions. [2025-02-05 10:52:03,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 5 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:03,984 INFO L276 IsEmpty]: Start isEmpty. Operand 85076 states and 98784 transitions. [2025-02-05 10:52:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2025-02-05 10:52:04,026 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:52:04,027 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:52:04,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 10:52:04,027 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:52:04,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:52:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1340540118, now seen corresponding path program 1 times [2025-02-05 10:52:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:52:04,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388079657] [2025-02-05 10:52:04,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:52:04,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:52:04,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1263 statements into 1 equivalence classes. [2025-02-05 10:52:04,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1263 of 1263 statements. [2025-02-05 10:52:04,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:52:04,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:52:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-02-05 10:52:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:52:04,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388079657] [2025-02-05 10:52:04,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388079657] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:52:04,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:52:04,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:52:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119337022] [2025-02-05 10:52:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:52:04,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:52:04,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:52:04,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:52:04,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:04,673 INFO L87 Difference]: Start difference. First operand 85076 states and 98784 transitions. Second operand has 3 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:52:07,359 INFO L93 Difference]: Finished difference Result 169332 states and 196742 transitions. [2025-02-05 10:52:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:52:07,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 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 1263 [2025-02-05 10:52:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:52:07,459 INFO L225 Difference]: With dead ends: 169332 [2025-02-05 10:52:07,459 INFO L226 Difference]: Without dead ends: 85076 [2025-02-05 10:52:07,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:07,517 INFO L435 NwaCegarLoop]: 1357 mSDtfsCounter, 784 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:52:07,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1366 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-05 10:52:07,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85076 states. [2025-02-05 10:52:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85076 to 80168. [2025-02-05 10:52:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80168 states, 80167 states have (on average 1.1240036423964974) internal successors, (90108), 80167 states have internal predecessors, (90108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80168 states to 80168 states and 90108 transitions. [2025-02-05 10:52:08,610 INFO L78 Accepts]: Start accepts. Automaton has 80168 states and 90108 transitions. Word has length 1263 [2025-02-05 10:52:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:52:08,610 INFO L471 AbstractCegarLoop]: Abstraction has 80168 states and 90108 transitions. [2025-02-05 10:52:08,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 80168 states and 90108 transitions. [2025-02-05 10:52:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1574 [2025-02-05 10:52:08,659 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:52:08,659 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:52:08,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 10:52:08,660 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:52:08,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:52:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1327722101, now seen corresponding path program 1 times [2025-02-05 10:52:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:52:08,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168065441] [2025-02-05 10:52:08,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:52:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:52:08,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1573 statements into 1 equivalence classes. [2025-02-05 10:52:08,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1573 of 1573 statements. [2025-02-05 10:52:08,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:52:08,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:52:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 1253 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-02-05 10:52:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:52:09,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168065441] [2025-02-05 10:52:09,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168065441] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:52:09,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:52:09,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:52:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332202916] [2025-02-05 10:52:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:52:09,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:52:09,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:52:09,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:52:09,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:09,702 INFO L87 Difference]: Start difference. First operand 80168 states and 90108 transitions. Second operand has 3 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:52:12,314 INFO L93 Difference]: Finished difference Result 185692 states and 208878 transitions. [2025-02-05 10:52:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:52:12,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 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 1573 [2025-02-05 10:52:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:52:12,429 INFO L225 Difference]: With dead ends: 185692 [2025-02-05 10:52:12,429 INFO L226 Difference]: Without dead ends: 106344 [2025-02-05 10:52:12,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:12,481 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 589 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-05 10:52:12,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 436 Invalid, 3276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-05 10:52:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106344 states. [2025-02-05 10:52:13,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106344 to 105526. [2025-02-05 10:52:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105526 states, 105525 states have (on average 1.1106751954513148) internal successors, (117204), 105525 states have internal predecessors, (117204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105526 states to 105526 states and 117204 transitions. [2025-02-05 10:52:13,597 INFO L78 Accepts]: Start accepts. Automaton has 105526 states and 117204 transitions. Word has length 1573 [2025-02-05 10:52:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:52:13,598 INFO L471 AbstractCegarLoop]: Abstraction has 105526 states and 117204 transitions. [2025-02-05 10:52:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 105526 states and 117204 transitions. [2025-02-05 10:52:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1945 [2025-02-05 10:52:13,667 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:52:13,669 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:52:13,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 10:52:13,670 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:52:13,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:52:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash 285042157, now seen corresponding path program 1 times [2025-02-05 10:52:13,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:52:13,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861058182] [2025-02-05 10:52:13,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:52:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:52:13,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1944 statements into 1 equivalence classes. [2025-02-05 10:52:13,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1944 of 1944 statements. [2025-02-05 10:52:13,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:52:13,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:52:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2326 backedges. 1796 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2025-02-05 10:52:15,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:52:15,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861058182] [2025-02-05 10:52:15,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861058182] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:52:15,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:52:15,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:52:15,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315672003] [2025-02-05 10:52:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:52:15,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:52:15,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:52:15,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:52:15,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:15,311 INFO L87 Difference]: Start difference. First operand 105526 states and 117204 transitions. Second operand has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:52:18,239 INFO L93 Difference]: Finished difference Result 210232 states and 233582 transitions. [2025-02-05 10:52:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:52:18,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 0 states have call successors, (0), 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 1944 [2025-02-05 10:52:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:52:18,349 INFO L225 Difference]: With dead ends: 210232 [2025-02-05 10:52:18,349 INFO L226 Difference]: Without dead ends: 105526 [2025-02-05 10:52:18,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:52:18,382 INFO L435 NwaCegarLoop]: 1367 mSDtfsCounter, 348 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-05 10:52:18,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1376 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-05 10:52:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105526 states. [2025-02-05 10:52:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105526 to 104708. [2025-02-05 10:52:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104708 states, 104707 states have (on average 1.0852187532829707) internal successors, (113630), 104707 states have internal predecessors, (113630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104708 states to 104708 states and 113630 transitions. [2025-02-05 10:52:19,423 INFO L78 Accepts]: Start accepts. Automaton has 104708 states and 113630 transitions. Word has length 1944 [2025-02-05 10:52:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:52:19,424 INFO L471 AbstractCegarLoop]: Abstraction has 104708 states and 113630 transitions. [2025-02-05 10:52:19,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 104708 states and 113630 transitions. [2025-02-05 10:52:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3060 [2025-02-05 10:52:19,885 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:52:19,885 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 10:52:19,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 10:52:19,886 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:52:19,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:52:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1145868083, now seen corresponding path program 1 times [2025-02-05 10:52:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:52:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742094131] [2025-02-05 10:52:19,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:52:19,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:52:20,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3059 statements into 1 equivalence classes. [2025-02-05 10:52:20,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3059 of 3059 statements. [2025-02-05 10:52:20,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:52:20,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:52:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7881 backedges. 3461 proven. 89 refuted. 0 times theorem prover too weak. 4331 trivial. 0 not checked. [2025-02-05 10:52:24,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:52:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742094131] [2025-02-05 10:52:24,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742094131] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 10:52:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099542261] [2025-02-05 10:52:24,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:52:24,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 10:52:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 10:52:24,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 10:52:24,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 10:52:24,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3059 statements into 1 equivalence classes. [2025-02-05 10:52:24,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3059 of 3059 statements. [2025-02-05 10:52:24,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:52:24,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:52:25,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 10:52:25,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 10:52:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7881 backedges. 3619 proven. 0 refuted. 0 times theorem prover too weak. 4262 trivial. 0 not checked. [2025-02-05 10:52:25,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 10:52:25,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099542261] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:52:25,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 10:52:25,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-02-05 10:52:25,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42281337] [2025-02-05 10:52:25,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:52:25,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:52:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:52:25,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:52:25,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 10:52:25,383 INFO L87 Difference]: Start difference. First operand 104708 states and 113630 transitions. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 10:52:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:52:27,781 INFO L93 Difference]: Finished difference Result 233136 states and 253374 transitions. [2025-02-05 10:52:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:52:27,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 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 3059 [2025-02-05 10:52:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:52:27,918 INFO L225 Difference]: With dead ends: 233136 [2025-02-05 10:52:27,918 INFO L226 Difference]: Without dead ends: 128430 [2025-02-05 10:52:27,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3063 GetRequests, 3058 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 10:52:27,983 INFO L435 NwaCegarLoop]: 1362 mSDtfsCounter, 774 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-05 10:52:27,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1370 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-05 10:52:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128430 states. [2025-02-05 10:52:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128430 to 121068.