./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem04_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem04_label30.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4a0f70ebd3fea85d9f931d62777151932b3c98ca2cb7276e61e1ebaf5e9541e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 14:15:18,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 14:15:18,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 14:15:18,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 14:15:18,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 14:15:18,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 14:15:18,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 14:15:18,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 14:15:18,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 14:15:18,815 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 14:15:18,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 14:15:18,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 14:15:18,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 14:15:18,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 14:15:18,817 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 14:15:18,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 14:15:18,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 14:15:18,817 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 14:15:18,818 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 14:15:18,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 14:15:18,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 14:15:18,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 14:15:18,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 14:15:18,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 14:15:18,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 14:15:18,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 14:15:18,820 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4a0f70ebd3fea85d9f931d62777151932b3c98ca2cb7276e61e1ebaf5e9541e [2025-03-16 14:15:19,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 14:15:19,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 14:15:19,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 14:15:19,071 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 14:15:19,071 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 14:15:19,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem04_label30.c [2025-03-16 14:15:20,160 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8ce8c842/3fae218e84fb4fb29acddf442dd64c53/FLAGcb8e1a1a8 [2025-03-16 14:15:20,632 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 14:15:20,633 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label30.c [2025-03-16 14:15:20,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8ce8c842/3fae218e84fb4fb29acddf442dd64c53/FLAGcb8e1a1a8 [2025-03-16 14:15:20,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8ce8c842/3fae218e84fb4fb29acddf442dd64c53 [2025-03-16 14:15:20,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 14:15:20,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 14:15:20,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 14:15:20,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 14:15:20,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 14:15:20,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 02:15:20" (1/1) ... [2025-03-16 14:15:20,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f2aef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:20, skipping insertion in model container [2025-03-16 14:15:20,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 02:15:20" (1/1) ... [2025-03-16 14:15:20,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 14:15:21,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label30.c[179782,179795] [2025-03-16 14:15:21,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 14:15:21,489 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 14:15:21,761 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label30.c[179782,179795] [2025-03-16 14:15:21,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 14:15:21,784 INFO L204 MainTranslator]: Completed translation [2025-03-16 14:15:21,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21 WrapperNode [2025-03-16 14:15:21,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 14:15:21,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 14:15:21,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 14:15:21,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 14:15:21,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:21,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:21,978 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5573 [2025-03-16 14:15:21,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 14:15:21,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 14:15:21,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 14:15:21,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 14:15:21,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:21,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,045 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 14:15:22,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 14:15:22,216 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 14:15:22,216 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 14:15:22,216 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 14:15:22,218 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (1/1) ... [2025-03-16 14:15:22,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 14:15:22,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 14:15:22,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 14:15:22,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 14:15:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 14:15:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 14:15:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 14:15:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 14:15:22,349 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 14:15:22,350 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 14:15:25,544 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4081: havoc calculate_output3_#t~ret11#1; [2025-03-16 14:15:25,544 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1382: havoc calculate_output_#t~ret9#1; [2025-03-16 14:15:25,544 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2719: havoc calculate_output2_#t~ret10#1; [2025-03-16 14:15:25,642 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2025-03-16 14:15:25,643 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 14:15:25,668 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 14:15:25,668 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 14:15:25,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 02:15:25 BoogieIcfgContainer [2025-03-16 14:15:25,668 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 14:15:25,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 14:15:25,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 14:15:25,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 14:15:25,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 02:15:20" (1/3) ... [2025-03-16 14:15:25,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb4e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 02:15:25, skipping insertion in model container [2025-03-16 14:15:25,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 02:15:21" (2/3) ... [2025-03-16 14:15:25,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb4e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 02:15:25, skipping insertion in model container [2025-03-16 14:15:25,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 02:15:25" (3/3) ... [2025-03-16 14:15:25,675 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem04_label30.c [2025-03-16 14:15:25,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 14:15:25,688 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem04_label30.c that has 1 procedures, 824 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 14:15:25,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 14:15:25,759 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;@7719a3c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 14:15:25,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 14:15:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 824 states, 822 states have (on average 1.9902676399026764) internal successors, (1636), 823 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2025-03-16 14:15:25,799 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:25,800 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] [2025-03-16 14:15:25,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:25,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2082457578, now seen corresponding path program 1 times [2025-03-16 14:15:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:25,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218742132] [2025-03-16 14:15:25,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:25,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:25,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 780 statements into 1 equivalence classes. [2025-03-16 14:15:26,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 780 of 780 statements. [2025-03-16 14:15:26,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:26,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:15:26,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:26,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218742132] [2025-03-16 14:15:26,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218742132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:26,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:26,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054654842] [2025-03-16 14:15:26,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:26,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 14:15:26,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:26,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 14:15:26,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 14:15:26,814 INFO L87 Difference]: Start difference. First operand has 824 states, 822 states have (on average 1.9902676399026764) internal successors, (1636), 823 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:26,901 INFO L93 Difference]: Finished difference Result 1647 states and 3271 transitions. [2025-03-16 14:15:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 14:15:26,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 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 780 [2025-03-16 14:15:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:26,943 INFO L225 Difference]: With dead ends: 1647 [2025-03-16 14:15:26,943 INFO L226 Difference]: Without dead ends: 821 [2025-03-16 14:15:26,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 14:15:26,954 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:26,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 14:15:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2025-03-16 14:15:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2025-03-16 14:15:27,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 820 states have (on average 1.9158536585365853) internal successors, (1571), 820 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:27,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1571 transitions. [2025-03-16 14:15:27,038 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1571 transitions. Word has length 780 [2025-03-16 14:15:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:27,040 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1571 transitions. [2025-03-16 14:15:27,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1571 transitions. [2025-03-16 14:15:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2025-03-16 14:15:27,054 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:27,054 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] [2025-03-16 14:15:27,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 14:15:27,056 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:27,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash -576808044, now seen corresponding path program 1 times [2025-03-16 14:15:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:27,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486095219] [2025-03-16 14:15:27,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:27,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 780 statements into 1 equivalence classes. [2025-03-16 14:15:27,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 780 of 780 statements. [2025-03-16 14:15:27,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:27,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:15:28,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:28,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486095219] [2025-03-16 14:15:28,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486095219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:28,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:28,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773976419] [2025-03-16 14:15:28,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:28,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:28,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:28,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:28,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:28,161 INFO L87 Difference]: Start difference. First operand 821 states and 1571 transitions. Second operand has 3 states, 3 states have (on average 260.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:30,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:30,755 INFO L93 Difference]: Finished difference Result 2459 states and 4710 transitions. [2025-03-16 14:15:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:30,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 260.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 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 780 [2025-03-16 14:15:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:30,764 INFO L225 Difference]: With dead ends: 2459 [2025-03-16 14:15:30,764 INFO L226 Difference]: Without dead ends: 1639 [2025-03-16 14:15:30,765 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 [2025-03-16 14:15:30,765 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 242 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:30,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 474 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-16 14:15:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2025-03-16 14:15:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2025-03-16 14:15:30,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1638 states have (on average 1.637973137973138) internal successors, (2683), 1638 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:30,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2683 transitions. [2025-03-16 14:15:30,797 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2683 transitions. Word has length 780 [2025-03-16 14:15:30,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:30,798 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2683 transitions. [2025-03-16 14:15:30,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.0) internal successors, (780), 2 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:30,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2683 transitions. [2025-03-16 14:15:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2025-03-16 14:15:30,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:30,809 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] [2025-03-16 14:15:30,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 14:15:30,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:30,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2029346609, now seen corresponding path program 1 times [2025-03-16 14:15:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:30,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448083732] [2025-03-16 14:15:30,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:30,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 791 statements into 1 equivalence classes. [2025-03-16 14:15:30,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 791 of 791 statements. [2025-03-16 14:15:30,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:30,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 14:15:31,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:31,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448083732] [2025-03-16 14:15:31,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448083732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:31,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127679568] [2025-03-16 14:15:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:31,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:31,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:31,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:31,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:31,144 INFO L87 Difference]: Start difference. First operand 1639 states and 2683 transitions. Second operand has 3 states, 3 states have (on average 263.6666666666667) internal successors, (791), 2 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:33,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:33,533 INFO L93 Difference]: Finished difference Result 4913 states and 8046 transitions. [2025-03-16 14:15:33,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:33,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 263.6666666666667) internal successors, (791), 2 states have internal predecessors, (791), 0 states have call successors, (0), 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 791 [2025-03-16 14:15:33,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:33,544 INFO L225 Difference]: With dead ends: 4913 [2025-03-16 14:15:33,544 INFO L226 Difference]: Without dead ends: 3275 [2025-03-16 14:15:33,546 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 [2025-03-16 14:15:33,546 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 989 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:33,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 240 Invalid, 3387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1115 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-16 14:15:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2025-03-16 14:15:33,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3275. [2025-03-16 14:15:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3274 states have (on average 1.5412339645693343) internal successors, (5046), 3274 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) [2025-03-16 14:15:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 5046 transitions. [2025-03-16 14:15:33,592 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 5046 transitions. Word has length 791 [2025-03-16 14:15:33,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:33,592 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 5046 transitions. [2025-03-16 14:15:33,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.6666666666667) internal successors, (791), 2 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:33,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 5046 transitions. [2025-03-16 14:15:33,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2025-03-16 14:15:33,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:33,600 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:15:33,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 14:15:33,600 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:33,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:33,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1193590173, now seen corresponding path program 1 times [2025-03-16 14:15:33,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:33,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840824542] [2025-03-16 14:15:33,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:33,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:33,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-16 14:15:33,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-16 14:15:33,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:33,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-16 14:15:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840824542] [2025-03-16 14:15:34,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840824542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:34,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:34,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730905505] [2025-03-16 14:15:34,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:34,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:34,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:34,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:34,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:34,065 INFO L87 Difference]: Start difference. First operand 3275 states and 5046 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) [2025-03-16 14:15:36,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:36,045 INFO L93 Difference]: Finished difference Result 9821 states and 15135 transitions. [2025-03-16 14:15:36,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:36,046 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 813 [2025-03-16 14:15:36,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:36,063 INFO L225 Difference]: With dead ends: 9821 [2025-03-16 14:15:36,063 INFO L226 Difference]: Without dead ends: 6547 [2025-03-16 14:15:36,067 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 [2025-03-16 14:15:36,067 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 976 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:36,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 199 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-16 14:15:36,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2025-03-16 14:15:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6547. [2025-03-16 14:15:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6547 states, 6546 states have (on average 1.477849068133211) internal successors, (9674), 6546 states have internal predecessors, (9674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 9674 transitions. [2025-03-16 14:15:36,185 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 9674 transitions. Word has length 813 [2025-03-16 14:15:36,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:36,185 INFO L471 AbstractCegarLoop]: Abstraction has 6547 states and 9674 transitions. [2025-03-16 14:15:36,186 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) [2025-03-16 14:15:36,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 9674 transitions. [2025-03-16 14:15:36,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2025-03-16 14:15:36,208 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:36,209 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:15:36,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 14:15:36,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:36,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:36,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1430098505, now seen corresponding path program 1 times [2025-03-16 14:15:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98100427] [2025-03-16 14:15:36,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:36,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 884 statements into 1 equivalence classes. [2025-03-16 14:15:36,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 884 of 884 statements. [2025-03-16 14:15:36,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:36,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-16 14:15:36,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:36,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98100427] [2025-03-16 14:15:36,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98100427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:36,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:36,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:36,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343871624] [2025-03-16 14:15:36,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:36,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:36,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:36,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:36,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:36,731 INFO L87 Difference]: Start difference. First operand 6547 states and 9674 transitions. Second operand has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 2 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:38,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:38,758 INFO L93 Difference]: Finished difference Result 19637 states and 29019 transitions. [2025-03-16 14:15:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:38,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 2 states have internal predecessors, (841), 0 states have call successors, (0), 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 884 [2025-03-16 14:15:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:38,789 INFO L225 Difference]: With dead ends: 19637 [2025-03-16 14:15:38,789 INFO L226 Difference]: Without dead ends: 13091 [2025-03-16 14:15:38,797 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 [2025-03-16 14:15:38,798 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 842 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2923 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:38,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 374 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2923 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-16 14:15:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13091 states. [2025-03-16 14:15:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13091 to 13091. [2025-03-16 14:15:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 13090 states have (on average 1.4264323911382735) internal successors, (18672), 13090 states have internal predecessors, (18672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18672 transitions. [2025-03-16 14:15:38,983 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18672 transitions. Word has length 884 [2025-03-16 14:15:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:38,984 INFO L471 AbstractCegarLoop]: Abstraction has 13091 states and 18672 transitions. [2025-03-16 14:15:38,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 2 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18672 transitions. [2025-03-16 14:15:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2025-03-16 14:15:39,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:39,042 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:15:39,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 14:15:39,043 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:39,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1437711797, now seen corresponding path program 1 times [2025-03-16 14:15:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:39,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98367822] [2025-03-16 14:15:39,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:39,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 904 statements into 1 equivalence classes. [2025-03-16 14:15:39,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 904 of 904 statements. [2025-03-16 14:15:39,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:39,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-16 14:15:39,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:39,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98367822] [2025-03-16 14:15:39,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98367822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:39,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:39,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:15:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049845907] [2025-03-16 14:15:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:39,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:39,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:39,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:39,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:39,499 INFO L87 Difference]: Start difference. First operand 13091 states and 18672 transitions. Second operand has 3 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:41,626 INFO L93 Difference]: Finished difference Result 39269 states and 56013 transitions. [2025-03-16 14:15:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 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 904 [2025-03-16 14:15:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:41,674 INFO L225 Difference]: With dead ends: 39269 [2025-03-16 14:15:41,674 INFO L226 Difference]: Without dead ends: 26179 [2025-03-16 14:15:41,688 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 [2025-03-16 14:15:41,688 INFO L435 NwaCegarLoop]: 1485 mSDtfsCounter, 767 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:41,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1493 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-16 14:15:41,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26179 states. [2025-03-16 14:15:42,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26179 to 26179. [2025-03-16 14:15:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26179 states, 26178 states have (on average 1.3663381465352586) internal successors, (35768), 26178 states have internal predecessors, (35768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26179 states to 26179 states and 35768 transitions. [2025-03-16 14:15:42,157 INFO L78 Accepts]: Start accepts. Automaton has 26179 states and 35768 transitions. Word has length 904 [2025-03-16 14:15:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:42,158 INFO L471 AbstractCegarLoop]: Abstraction has 26179 states and 35768 transitions. [2025-03-16 14:15:42,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 26179 states and 35768 transitions. [2025-03-16 14:15:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2025-03-16 14:15:42,190 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:42,191 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:15:42,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 14:15:42,192 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:42,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:42,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1294808251, now seen corresponding path program 1 times [2025-03-16 14:15:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:42,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084937064] [2025-03-16 14:15:42,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:42,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:42,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 922 statements into 1 equivalence classes. [2025-03-16 14:15:42,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 922 of 922 statements. [2025-03-16 14:15:42,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:42,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-16 14:15:42,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:42,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084937064] [2025-03-16 14:15:42,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084937064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:42,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:42,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:42,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303945573] [2025-03-16 14:15:42,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:42,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:42,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:42,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:42,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:42,604 INFO L87 Difference]: Start difference. First operand 26179 states and 35768 transitions. Second operand has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:44,650 INFO L93 Difference]: Finished difference Result 64627 states and 87969 transitions. [2025-03-16 14:15:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:44,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 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 922 [2025-03-16 14:15:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:44,709 INFO L225 Difference]: With dead ends: 64627 [2025-03-16 14:15:44,709 INFO L226 Difference]: Without dead ends: 38449 [2025-03-16 14:15:44,734 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 [2025-03-16 14:15:44,734 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 928 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:44,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 310 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-16 14:15:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38449 states. [2025-03-16 14:15:45,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38449 to 38449. [2025-03-16 14:15:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38449 states, 38448 states have (on average 1.2489596337910944) internal successors, (48020), 38448 states have internal predecessors, (48020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:45,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38449 states to 38449 states and 48020 transitions. [2025-03-16 14:15:45,294 INFO L78 Accepts]: Start accepts. Automaton has 38449 states and 48020 transitions. Word has length 922 [2025-03-16 14:15:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:45,294 INFO L471 AbstractCegarLoop]: Abstraction has 38449 states and 48020 transitions. [2025-03-16 14:15:45,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 38449 states and 48020 transitions. [2025-03-16 14:15:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2025-03-16 14:15:45,404 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:45,404 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] [2025-03-16 14:15:45,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 14:15:45,405 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:45,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1958683162, now seen corresponding path program 1 times [2025-03-16 14:15:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:45,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593077790] [2025-03-16 14:15:45,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:45,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:45,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 961 statements into 1 equivalence classes. [2025-03-16 14:15:45,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 961 of 961 statements. [2025-03-16 14:15:45,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:45,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:45,735 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-16 14:15:45,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:45,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593077790] [2025-03-16 14:15:45,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593077790] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:45,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:45,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:45,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350369193] [2025-03-16 14:15:45,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:45,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:45,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:45,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:45,738 INFO L87 Difference]: Start difference. First operand 38449 states and 48020 transitions. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 2 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:48,182 INFO L93 Difference]: Finished difference Result 109617 states and 137167 transitions. [2025-03-16 14:15:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:48,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 2 states have internal predecessors, (924), 0 states have call successors, (0), 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 961 [2025-03-16 14:15:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:48,261 INFO L225 Difference]: With dead ends: 109617 [2025-03-16 14:15:48,261 INFO L226 Difference]: Without dead ends: 71169 [2025-03-16 14:15:48,294 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 [2025-03-16 14:15:48,294 INFO L435 NwaCegarLoop]: 466 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, 473 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 [2025-03-16 14:15:48,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 473 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-16 14:15:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71169 states. [2025-03-16 14:15:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71169 to 58081. [2025-03-16 14:15:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58081 states, 58080 states have (on average 1.2081267217630853) internal successors, (70168), 58080 states have internal predecessors, (70168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:48,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58081 states to 58081 states and 70168 transitions. [2025-03-16 14:15:48,979 INFO L78 Accepts]: Start accepts. Automaton has 58081 states and 70168 transitions. Word has length 961 [2025-03-16 14:15:48,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:48,979 INFO L471 AbstractCegarLoop]: Abstraction has 58081 states and 70168 transitions. [2025-03-16 14:15:48,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 2 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:48,980 INFO L276 IsEmpty]: Start isEmpty. Operand 58081 states and 70168 transitions. [2025-03-16 14:15:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2025-03-16 14:15:49,123 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:49,124 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] [2025-03-16 14:15:49,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 14:15:49,124 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:49,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1402977660, now seen corresponding path program 1 times [2025-03-16 14:15:49,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:49,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833629691] [2025-03-16 14:15:49,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:49,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:49,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1153 statements into 1 equivalence classes. [2025-03-16 14:15:49,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1153 of 1153 statements. [2025-03-16 14:15:49,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:49,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2025-03-16 14:15:50,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:50,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833629691] [2025-03-16 14:15:50,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833629691] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:50,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:50,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:15:50,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945640335] [2025-03-16 14:15:50,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:50,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:50,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:50,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:50,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:50,254 INFO L87 Difference]: Start difference. First operand 58081 states and 70168 transitions. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:52,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:52,142 INFO L93 Difference]: Finished difference Result 117797 states and 142037 transitions. [2025-03-16 14:15:52,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:52,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 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 1153 [2025-03-16 14:15:52,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:52,209 INFO L225 Difference]: With dead ends: 117797 [2025-03-16 14:15:52,209 INFO L226 Difference]: Without dead ends: 59717 [2025-03-16 14:15:52,234 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 [2025-03-16 14:15:52,234 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 822 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:52,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 656 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 14:15:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59717 states. [2025-03-16 14:15:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59717 to 59717. [2025-03-16 14:15:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59717 states, 59716 states have (on average 1.2001138723290241) internal successors, (71666), 59716 states have internal predecessors, (71666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59717 states to 59717 states and 71666 transitions. [2025-03-16 14:15:52,950 INFO L78 Accepts]: Start accepts. Automaton has 59717 states and 71666 transitions. Word has length 1153 [2025-03-16 14:15:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:52,951 INFO L471 AbstractCegarLoop]: Abstraction has 59717 states and 71666 transitions. [2025-03-16 14:15:52,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 59717 states and 71666 transitions. [2025-03-16 14:15:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2025-03-16 14:15:53,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:53,012 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] [2025-03-16 14:15:53,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 14:15:53,013 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:53,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1756723873, now seen corresponding path program 1 times [2025-03-16 14:15:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569806624] [2025-03-16 14:15:53,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:53,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:53,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1201 statements into 1 equivalence classes. [2025-03-16 14:15:53,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1201 of 1201 statements. [2025-03-16 14:15:53,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:53,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-03-16 14:15:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:53,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569806624] [2025-03-16 14:15:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569806624] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:53,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 14:15:53,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812700371] [2025-03-16 14:15:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:53,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:53,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:53,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:53,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:53,923 INFO L87 Difference]: Start difference. First operand 59717 states and 71666 transitions. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 2 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:55,978 INFO L93 Difference]: Finished difference Result 122705 states and 146837 transitions. [2025-03-16 14:15:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 2 states have internal predecessors, (904), 0 states have call successors, (0), 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 1201 [2025-03-16 14:15:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:56,035 INFO L225 Difference]: With dead ends: 122705 [2025-03-16 14:15:56,036 INFO L226 Difference]: Without dead ends: 62989 [2025-03-16 14:15:56,059 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 [2025-03-16 14:15:56,059 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 731 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 795 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:56,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 518 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [795 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 14:15:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62989 states. [2025-03-16 14:15:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62989 to 62989. [2025-03-16 14:15:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62989 states, 62988 states have (on average 1.1882898329840605) internal successors, (74848), 62988 states have internal predecessors, (74848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62989 states to 62989 states and 74848 transitions. [2025-03-16 14:15:56,584 INFO L78 Accepts]: Start accepts. Automaton has 62989 states and 74848 transitions. Word has length 1201 [2025-03-16 14:15:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:15:56,585 INFO L471 AbstractCegarLoop]: Abstraction has 62989 states and 74848 transitions. [2025-03-16 14:15:56,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 2 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 62989 states and 74848 transitions. [2025-03-16 14:15:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2025-03-16 14:15:56,621 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:15:56,622 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] [2025-03-16 14:15:56,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 14:15:56,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:15:56,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:15:56,622 INFO L85 PathProgramCache]: Analyzing trace with hash 912746684, now seen corresponding path program 1 times [2025-03-16 14:15:56,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:15:56,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62052357] [2025-03-16 14:15:56,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:15:56,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:15:56,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1216 statements into 1 equivalence classes. [2025-03-16 14:15:56,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1216 of 1216 statements. [2025-03-16 14:15:56,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:15:56,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:15:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2025-03-16 14:15:57,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:15:57,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62052357] [2025-03-16 14:15:57,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62052357] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:15:57,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:15:57,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:15:57,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107198823] [2025-03-16 14:15:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:15:57,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:15:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:15:57,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:15:57,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:15:57,147 INFO L87 Difference]: Start difference. First operand 62989 states and 74848 transitions. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:15:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:15:59,277 INFO L93 Difference]: Finished difference Result 141519 states and 168886 transitions. [2025-03-16 14:15:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:15:59,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 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 1216 [2025-03-16 14:15:59,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:15:59,361 INFO L225 Difference]: With dead ends: 141519 [2025-03-16 14:15:59,361 INFO L226 Difference]: Without dead ends: 78531 [2025-03-16 14:15:59,405 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 [2025-03-16 14:15:59,406 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 913 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-16 14:15:59,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 425 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-16 14:15:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78531 states. [2025-03-16 14:16:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78531 to 78531. [2025-03-16 14:16:00,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78531 states, 78530 states have (on average 1.1703680122246276) internal successors, (91909), 78530 states have internal predecessors, (91909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78531 states to 78531 states and 91909 transitions. [2025-03-16 14:16:00,394 INFO L78 Accepts]: Start accepts. Automaton has 78531 states and 91909 transitions. Word has length 1216 [2025-03-16 14:16:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:00,394 INFO L471 AbstractCegarLoop]: Abstraction has 78531 states and 91909 transitions. [2025-03-16 14:16:00,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 78531 states and 91909 transitions. [2025-03-16 14:16:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1253 [2025-03-16 14:16:00,459 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:00,459 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, 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] [2025-03-16 14:16:00,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 14:16:00,460 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:00,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1068932478, now seen corresponding path program 1 times [2025-03-16 14:16:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176909484] [2025-03-16 14:16:00,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:00,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1252 statements into 1 equivalence classes. [2025-03-16 14:16:00,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1252 of 1252 statements. [2025-03-16 14:16:00,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:00,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-03-16 14:16:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176909484] [2025-03-16 14:16:02,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176909484] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:02,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:02,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 14:16:02,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520689083] [2025-03-16 14:16:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:02,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 14:16:02,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:02,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 14:16:02,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 14:16:02,151 INFO L87 Difference]: Start difference. First operand 78531 states and 91909 transitions. Second operand has 5 states, 5 states have (on average 221.8) internal successors, (1109), 4 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:04,612 INFO L93 Difference]: Finished difference Result 157879 states and 184659 transitions. [2025-03-16 14:16:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 14:16:04,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 221.8) internal successors, (1109), 4 states have internal predecessors, (1109), 0 states have call successors, (0), 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 1252 [2025-03-16 14:16:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:04,695 INFO L225 Difference]: With dead ends: 157879 [2025-03-16 14:16:04,695 INFO L226 Difference]: Without dead ends: 79349 [2025-03-16 14:16:04,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-16 14:16:04,737 INFO L435 NwaCegarLoop]: 758 mSDtfsCounter, 923 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 4470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:04,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1842 Invalid, 4470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-16 14:16:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79349 states. [2025-03-16 14:16:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79349 to 79349. [2025-03-16 14:16:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79349 states, 79348 states have (on average 1.1686873015072843) internal successors, (92733), 79348 states have internal predecessors, (92733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79349 states to 79349 states and 92733 transitions. [2025-03-16 14:16:05,600 INFO L78 Accepts]: Start accepts. Automaton has 79349 states and 92733 transitions. Word has length 1252 [2025-03-16 14:16:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:05,600 INFO L471 AbstractCegarLoop]: Abstraction has 79349 states and 92733 transitions. [2025-03-16 14:16:05,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 221.8) internal successors, (1109), 4 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 79349 states and 92733 transitions. [2025-03-16 14:16:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1268 [2025-03-16 14:16:05,641 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:05,642 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, 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] [2025-03-16 14:16:05,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 14:16:05,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:05,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1136801667, now seen corresponding path program 1 times [2025-03-16 14:16:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:05,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575708938] [2025-03-16 14:16:05,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:05,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1267 statements into 1 equivalence classes. [2025-03-16 14:16:05,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1267 of 1267 statements. [2025-03-16 14:16:05,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:05,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:07,740 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-03-16 14:16:07,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:07,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575708938] [2025-03-16 14:16:07,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575708938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:07,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:07,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 14:16:07,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092597825] [2025-03-16 14:16:07,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:07,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 14:16:07,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:07,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 14:16:07,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 14:16:07,742 INFO L87 Difference]: Start difference. First operand 79349 states and 92733 transitions. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 5 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:11,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:11,239 INFO L93 Difference]: Finished difference Result 160333 states and 187185 transitions. [2025-03-16 14:16:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 14:16:11,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 5 states have internal predecessors, (1124), 0 states have call successors, (0), 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 1267 [2025-03-16 14:16:11,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:11,327 INFO L225 Difference]: With dead ends: 160333 [2025-03-16 14:16:11,327 INFO L226 Difference]: Without dead ends: 81803 [2025-03-16 14:16:11,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-16 14:16:11,376 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 1535 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 7530 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 7564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 7530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:11,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1821 Invalid, 7564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 7530 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-16 14:16:11,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81803 states. [2025-03-16 14:16:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81803 to 81803. [2025-03-16 14:16:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81803 states, 81802 states have (on average 1.1642135889098066) internal successors, (95235), 81802 states have internal predecessors, (95235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81803 states to 81803 states and 95235 transitions. [2025-03-16 14:16:12,073 INFO L78 Accepts]: Start accepts. Automaton has 81803 states and 95235 transitions. Word has length 1267 [2025-03-16 14:16:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:12,074 INFO L471 AbstractCegarLoop]: Abstraction has 81803 states and 95235 transitions. [2025-03-16 14:16:12,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 5 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 81803 states and 95235 transitions. [2025-03-16 14:16:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2025-03-16 14:16:12,120 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:12,121 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2025-03-16 14:16:12,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 14:16:12,121 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:12,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash -47820944, now seen corresponding path program 1 times [2025-03-16 14:16:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:12,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170628188] [2025-03-16 14:16:12,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:12,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:12,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1274 statements into 1 equivalence classes. [2025-03-16 14:16:12,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1274 of 1274 statements. [2025-03-16 14:16:12,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:12,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2025-03-16 14:16:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170628188] [2025-03-16 14:16:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170628188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:12,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:12,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:12,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824027851] [2025-03-16 14:16:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:12,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:12,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:12,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:12,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:12,886 INFO L87 Difference]: Start difference. First operand 81803 states and 95235 transitions. Second operand has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:15,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:15,050 INFO L93 Difference]: Finished difference Result 162787 states and 189645 transitions. [2025-03-16 14:16:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:15,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 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 1274 [2025-03-16 14:16:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:15,133 INFO L225 Difference]: With dead ends: 162787 [2025-03-16 14:16:15,133 INFO L226 Difference]: Without dead ends: 81803 [2025-03-16 14:16:15,175 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 [2025-03-16 14:16:15,176 INFO L435 NwaCegarLoop]: 1356 mSDtfsCounter, 784 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:15,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1364 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-16 14:16:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81803 states. [2025-03-16 14:16:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81803 to 77713. [2025-03-16 14:16:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77713 states, 77712 states have (on average 1.1255661931233272) internal successors, (87470), 77712 states have internal predecessors, (87470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77713 states to 77713 states and 87470 transitions. [2025-03-16 14:16:15,882 INFO L78 Accepts]: Start accepts. Automaton has 77713 states and 87470 transitions. Word has length 1274 [2025-03-16 14:16:15,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:15,883 INFO L471 AbstractCegarLoop]: Abstraction has 77713 states and 87470 transitions. [2025-03-16 14:16:15,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 77713 states and 87470 transitions. [2025-03-16 14:16:15,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1434 [2025-03-16 14:16:15,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:15,930 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:16:15,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 14:16:15,930 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:15,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:15,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1650516019, now seen corresponding path program 1 times [2025-03-16 14:16:15,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:15,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998483112] [2025-03-16 14:16:15,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:15,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:16,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1433 statements into 1 equivalence classes. [2025-03-16 14:16:16,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1433 of 1433 statements. [2025-03-16 14:16:16,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:16,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 1181 proven. 89 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2025-03-16 14:16:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:17,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998483112] [2025-03-16 14:16:17,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998483112] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 14:16:17,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428382504] [2025-03-16 14:16:17,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:17,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 14:16:17,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 14:16:17,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 14:16:17,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 14:16:17,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1433 statements into 1 equivalence classes. [2025-03-16 14:16:17,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1433 of 1433 statements. [2025-03-16 14:16:17,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:17,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:17,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-16 14:16:17,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 14:16:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 1041 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2025-03-16 14:16:18,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 14:16:18,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428382504] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:18,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 14:16:18,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-16 14:16:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004889416] [2025-03-16 14:16:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:18,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:18,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:18,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:18,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-16 14:16:18,030 INFO L87 Difference]: Start difference. First operand 77713 states and 87470 transitions. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:19,998 INFO L93 Difference]: Finished difference Result 154607 states and 174115 transitions. [2025-03-16 14:16:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:19,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 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 1433 [2025-03-16 14:16:19,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:20,072 INFO L225 Difference]: With dead ends: 154607 [2025-03-16 14:16:20,072 INFO L226 Difference]: Without dead ends: 77713 [2025-03-16 14:16:20,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1432 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-16 14:16:20,116 INFO L435 NwaCegarLoop]: 1108 mSDtfsCounter, 742 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:20,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1115 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 14:16:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77713 states. [2025-03-16 14:16:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77713 to 72805. [2025-03-16 14:16:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72805 states, 72804 states have (on average 1.1054337673754189) internal successors, (80480), 72804 states have internal predecessors, (80480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72805 states to 72805 states and 80480 transitions. [2025-03-16 14:16:21,021 INFO L78 Accepts]: Start accepts. Automaton has 72805 states and 80480 transitions. Word has length 1433 [2025-03-16 14:16:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:21,022 INFO L471 AbstractCegarLoop]: Abstraction has 72805 states and 80480 transitions. [2025-03-16 14:16:21,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 72805 states and 80480 transitions. [2025-03-16 14:16:21,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2025-03-16 14:16:21,090 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:21,091 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:16:21,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-16 14:16:21,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-16 14:16:21,291 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:21,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash 321935914, now seen corresponding path program 1 times [2025-03-16 14:16:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:21,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901274903] [2025-03-16 14:16:21,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:21,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:21,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1495 statements into 1 equivalence classes. [2025-03-16 14:16:21,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1495 of 1495 statements. [2025-03-16 14:16:21,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:21,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 1319 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2025-03-16 14:16:22,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:22,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901274903] [2025-03-16 14:16:22,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901274903] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:22,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:22,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319025537] [2025-03-16 14:16:22,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:22,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:22,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:22,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:22,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:22,482 INFO L87 Difference]: Start difference. First operand 72805 states and 80480 transitions. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:24,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:24,513 INFO L93 Difference]: Finished difference Result 144791 states and 160135 transitions. [2025-03-16 14:16:24,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:24,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 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 1495 [2025-03-16 14:16:24,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:24,584 INFO L225 Difference]: With dead ends: 144791 [2025-03-16 14:16:24,584 INFO L226 Difference]: Without dead ends: 72805 [2025-03-16 14:16:24,624 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 [2025-03-16 14:16:24,625 INFO L435 NwaCegarLoop]: 1365 mSDtfsCounter, 744 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:24,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1372 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 14:16:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72805 states. [2025-03-16 14:16:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72805 to 71169. [2025-03-16 14:16:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71169 states, 71168 states have (on average 1.0805418165467626) internal successors, (76900), 71168 states have internal predecessors, (76900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71169 states to 71169 states and 76900 transitions. [2025-03-16 14:16:25,294 INFO L78 Accepts]: Start accepts. Automaton has 71169 states and 76900 transitions. Word has length 1495 [2025-03-16 14:16:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:25,294 INFO L471 AbstractCegarLoop]: Abstraction has 71169 states and 76900 transitions. [2025-03-16 14:16:25,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 71169 states and 76900 transitions. [2025-03-16 14:16:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1518 [2025-03-16 14:16:25,343 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:25,344 INFO L218 NwaCegarLoop]: trace histogram [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, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-16 14:16:25,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-16 14:16:25,344 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:25,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash 53748972, now seen corresponding path program 1 times [2025-03-16 14:16:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701912751] [2025-03-16 14:16:25,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:25,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1517 statements into 1 equivalence classes. [2025-03-16 14:16:25,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1517 of 1517 statements. [2025-03-16 14:16:25,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:25,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:26,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1748 backedges. 1251 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-16 14:16:26,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:26,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701912751] [2025-03-16 14:16:26,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701912751] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:26,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:26,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:26,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239198550] [2025-03-16 14:16:26,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:26,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:26,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:26,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:26,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:26,151 INFO L87 Difference]: Start difference. First operand 71169 states and 76900 transitions. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:28,207 INFO L93 Difference]: Finished difference Result 163605 states and 177203 transitions. [2025-03-16 14:16:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:28,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 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 1517 [2025-03-16 14:16:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:28,295 INFO L225 Difference]: With dead ends: 163605 [2025-03-16 14:16:28,295 INFO L226 Difference]: Without dead ends: 92437 [2025-03-16 14:16:28,341 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 [2025-03-16 14:16:28,342 INFO L435 NwaCegarLoop]: 1361 mSDtfsCounter, 830 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:28,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1369 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 14:16:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92437 states. [2025-03-16 14:16:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92437 to 86711. [2025-03-16 14:16:29,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86711 states, 86710 states have (on average 1.0747433975320033) internal successors, (93191), 86710 states have internal predecessors, (93191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86711 states to 86711 states and 93191 transitions. [2025-03-16 14:16:29,415 INFO L78 Accepts]: Start accepts. Automaton has 86711 states and 93191 transitions. Word has length 1517 [2025-03-16 14:16:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:29,416 INFO L471 AbstractCegarLoop]: Abstraction has 86711 states and 93191 transitions. [2025-03-16 14:16:29,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 86711 states and 93191 transitions. [2025-03-16 14:16:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1641 [2025-03-16 14:16:29,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:29,500 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 14:16:29,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-16 14:16:29,500 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:29,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1358279275, now seen corresponding path program 1 times [2025-03-16 14:16:29,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:29,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765284494] [2025-03-16 14:16:29,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:29,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:29,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1640 statements into 1 equivalence classes. [2025-03-16 14:16:29,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1640 of 1640 statements. [2025-03-16 14:16:29,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:29,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 1819 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-16 14:16:30,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:30,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765284494] [2025-03-16 14:16:30,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765284494] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:30,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:30,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:30,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360292792] [2025-03-16 14:16:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:30,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:30,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:30,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:30,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:30,508 INFO L87 Difference]: Start difference. First operand 86711 states and 93191 transitions. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:32,518 INFO L93 Difference]: Finished difference Result 172603 states and 185557 transitions. [2025-03-16 14:16:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:32,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 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 1640 [2025-03-16 14:16:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:32,601 INFO L225 Difference]: With dead ends: 172603 [2025-03-16 14:16:32,601 INFO L226 Difference]: Without dead ends: 86711 [2025-03-16 14:16:32,649 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 [2025-03-16 14:16:32,649 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 677 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:32,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 531 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 14:16:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86711 states. [2025-03-16 14:16:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86711 to 86711. [2025-03-16 14:16:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86711 states, 86710 states have (on average 1.0576519432591396) internal successors, (91709), 86710 states have internal predecessors, (91709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:33,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86711 states to 86711 states and 91709 transitions. [2025-03-16 14:16:33,341 INFO L78 Accepts]: Start accepts. Automaton has 86711 states and 91709 transitions. Word has length 1640 [2025-03-16 14:16:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:33,342 INFO L471 AbstractCegarLoop]: Abstraction has 86711 states and 91709 transitions. [2025-03-16 14:16:33,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 86711 states and 91709 transitions. [2025-03-16 14:16:33,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2096 [2025-03-16 14:16:33,405 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:33,405 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-16 14:16:33,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-16 14:16:33,406 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:33,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:33,406 INFO L85 PathProgramCache]: Analyzing trace with hash 341926403, now seen corresponding path program 1 times [2025-03-16 14:16:33,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:33,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617478938] [2025-03-16 14:16:33,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:33,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2095 statements into 1 equivalence classes. [2025-03-16 14:16:33,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2095 of 2095 statements. [2025-03-16 14:16:33,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:33,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 1671 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2025-03-16 14:16:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:36,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617478938] [2025-03-16 14:16:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617478938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774023216] [2025-03-16 14:16:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:36,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:36,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:36,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:36,129 INFO L87 Difference]: Start difference. First operand 86711 states and 91709 transitions. Second operand has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:38,023 INFO L93 Difference]: Finished difference Result 175057 states and 185113 transitions. [2025-03-16 14:16:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 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 2095 [2025-03-16 14:16:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:38,120 INFO L225 Difference]: With dead ends: 175057 [2025-03-16 14:16:38,121 INFO L226 Difference]: Without dead ends: 89165 [2025-03-16 14:16:38,174 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 [2025-03-16 14:16:38,174 INFO L435 NwaCegarLoop]: 1517 mSDtfsCounter, 536 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:38,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1525 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 14:16:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89165 states. [2025-03-16 14:16:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89165 to 86711. [2025-03-16 14:16:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86711 states, 86710 states have (on average 1.0568907853765426) internal successors, (91643), 86710 states have internal predecessors, (91643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86711 states to 86711 states and 91643 transitions. [2025-03-16 14:16:39,081 INFO L78 Accepts]: Start accepts. Automaton has 86711 states and 91643 transitions. Word has length 2095 [2025-03-16 14:16:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:39,082 INFO L471 AbstractCegarLoop]: Abstraction has 86711 states and 91643 transitions. [2025-03-16 14:16:39,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 86711 states and 91643 transitions. [2025-03-16 14:16:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2432 [2025-03-16 14:16:39,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:39,151 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 7, 7, 7, 6, 6, 6, 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, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-16 14:16:39,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-16 14:16:39,151 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:39,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash 162259068, now seen corresponding path program 1 times [2025-03-16 14:16:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:39,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843778264] [2025-03-16 14:16:39,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:39,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:39,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2431 statements into 1 equivalence classes. [2025-03-16 14:16:39,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2431 of 2431 statements. [2025-03-16 14:16:39,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:39,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 14:16:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4379 backedges. 2533 proven. 0 refuted. 0 times theorem prover too weak. 1846 trivial. 0 not checked. [2025-03-16 14:16:40,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 14:16:40,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843778264] [2025-03-16 14:16:40,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843778264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 14:16:40,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 14:16:40,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 14:16:40,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126788273] [2025-03-16 14:16:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 14:16:40,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 14:16:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 14:16:40,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 14:16:40,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 14:16:40,872 INFO L87 Difference]: Start difference. First operand 86711 states and 91643 transitions. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 14:16:42,880 INFO L93 Difference]: Finished difference Result 180783 states and 190869 transitions. [2025-03-16 14:16:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 14:16:42,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 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 2431 [2025-03-16 14:16:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 14:16:42,962 INFO L225 Difference]: With dead ends: 180783 [2025-03-16 14:16:42,962 INFO L226 Difference]: Without dead ends: 90801 [2025-03-16 14:16:43,011 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 [2025-03-16 14:16:43,012 INFO L435 NwaCegarLoop]: 1395 mSDtfsCounter, 664 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 14:16:43,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1402 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 14:16:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90801 states. [2025-03-16 14:16:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90801 to 81803. [2025-03-16 14:16:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81803 states, 81802 states have (on average 1.0479205887386616) internal successors, (85722), 81802 states have internal predecessors, (85722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81803 states to 81803 states and 85722 transitions. [2025-03-16 14:16:43,673 INFO L78 Accepts]: Start accepts. Automaton has 81803 states and 85722 transitions. Word has length 2431 [2025-03-16 14:16:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 14:16:43,674 INFO L471 AbstractCegarLoop]: Abstraction has 81803 states and 85722 transitions. [2025-03-16 14:16:43,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 14:16:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 81803 states and 85722 transitions. [2025-03-16 14:16:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2511 [2025-03-16 14:16:43,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 14:16:43,742 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-16 14:16:43,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-16 14:16:43,742 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 14:16:43,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 14:16:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1377304904, now seen corresponding path program 1 times [2025-03-16 14:16:43,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 14:16:43,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904883950] [2025-03-16 14:16:43,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 14:16:43,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 14:16:43,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2510 statements into 1 equivalence classes. [2025-03-16 14:16:43,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2510 of 2510 statements. [2025-03-16 14:16:43,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 14:16:43,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat