./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87d97b8e30b2a31a4876e057488e2e87126da257ca4324c4e70a282f34f137aa --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 20:52:46,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 20:52:46,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 20:52:46,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 20:52:46,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 20:52:46,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 20:52:46,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 20:52:46,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 20:52:46,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 20:52:46,284 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 20:52:46,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 20:52:46,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 20:52:46,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 20:52:46,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 20:52:46,285 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 20:52:46,286 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:52:46,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 20:52:46,286 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d97b8e30b2a31a4876e057488e2e87126da257ca4324c4e70a282f34f137aa [2025-02-05 20:52:46,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 20:52:46,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 20:52:46,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 20:52:46,514 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 20:52:46,514 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 20:52:46,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i [2025-02-05 20:52:47,625 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c280f6d16/aa3c063a758f4c4d81badd252381930c/FLAG4c29bf69d [2025-02-05 20:52:47,898 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 20:52:47,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i [2025-02-05 20:52:47,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c280f6d16/aa3c063a758f4c4d81badd252381930c/FLAG4c29bf69d [2025-02-05 20:52:48,207 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c280f6d16/aa3c063a758f4c4d81badd252381930c [2025-02-05 20:52:48,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 20:52:48,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 20:52:48,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 20:52:48,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 20:52:48,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 20:52:48,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163c1175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48, skipping insertion in model container [2025-02-05 20:52:48,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 20:52:48,362 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i[917,930] [2025-02-05 20:52:48,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:52:48,427 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 20:52:48,436 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-81.i[917,930] [2025-02-05 20:52:48,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:52:48,481 INFO L204 MainTranslator]: Completed translation [2025-02-05 20:52:48,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48 WrapperNode [2025-02-05 20:52:48,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 20:52:48,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 20:52:48,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 20:52:48,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 20:52:48,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,517 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189 [2025-02-05 20:52:48,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 20:52:48,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 20:52:48,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 20:52:48,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 20:52:48,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,525 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,546 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 20:52:48,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 20:52:48,561 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 20:52:48,562 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 20:52:48,562 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 20:52:48,562 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (1/1) ... [2025-02-05 20:52:48,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:52:48,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:52:48,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 20:52:48,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 20:52:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 20:52:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 20:52:48,614 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 20:52:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 20:52:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 20:52:48,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 20:52:48,678 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 20:52:48,679 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 20:52:48,923 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L138: havoc property_#t~bitwise21#1;havoc property_#t~short22#1; [2025-02-05 20:52:48,957 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-05 20:52:48,957 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 20:52:48,975 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 20:52:48,976 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 20:52:48,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:52:48 BoogieIcfgContainer [2025-02-05 20:52:48,977 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 20:52:48,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 20:52:48,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 20:52:48,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 20:52:48,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 08:52:48" (1/3) ... [2025-02-05 20:52:48,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b8bff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:52:48, skipping insertion in model container [2025-02-05 20:52:48,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:52:48" (2/3) ... [2025-02-05 20:52:48,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b8bff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:52:48, skipping insertion in model container [2025-02-05 20:52:48,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:52:48" (3/3) ... [2025-02-05 20:52:48,984 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-81.i [2025-02-05 20:52:48,994 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 20:52:48,996 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-81.i that has 2 procedures, 86 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 20:52:49,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 20:52:49,053 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;@6d115c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 20:52:49,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 20:52:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 52 states have internal predecessors, (68), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-05 20:52:49,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-02-05 20:52:49,069 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:52:49,069 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:52:49,070 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:52:49,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:52:49,074 INFO L85 PathProgramCache]: Analyzing trace with hash 405000313, now seen corresponding path program 1 times [2025-02-05 20:52:49,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:52:49,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550030015] [2025-02-05 20:52:49,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:52:49,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:52:49,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-02-05 20:52:49,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-02-05 20:52:49,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:52:49,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:52:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2025-02-05 20:52:49,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:52:49,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550030015] [2025-02-05 20:52:49,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550030015] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 20:52:49,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858892732] [2025-02-05 20:52:49,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:52:49,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 20:52:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:52:49,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 20:52:49,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 20:52:49,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-02-05 20:52:49,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-02-05 20:52:49,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:52:49,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:52:49,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 20:52:49,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 20:52:49,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2025-02-05 20:52:49,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 20:52:49,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858892732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:52:49,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 20:52:49,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 20:52:49,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050187544] [2025-02-05 20:52:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:52:49,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 20:52:49,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:52:49,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 20:52:49,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 20:52:49,567 INFO L87 Difference]: Start difference. First operand has 86 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 52 states have internal predecessors, (68), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-05 20:52:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:52:49,587 INFO L93 Difference]: Finished difference Result 166 states and 291 transitions. [2025-02-05 20:52:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 20:52:49,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 197 [2025-02-05 20:52:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:52:49,592 INFO L225 Difference]: With dead ends: 166 [2025-02-05 20:52:49,592 INFO L226 Difference]: Without dead ends: 83 [2025-02-05 20:52:49,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 20:52:49,595 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 20:52:49,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 20:52:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-02-05 20:52:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2025-02-05 20:52:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 49 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-05 20:52:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 127 transitions. [2025-02-05 20:52:49,622 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 127 transitions. Word has length 197 [2025-02-05 20:52:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:52:49,622 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 127 transitions. [2025-02-05 20:52:49,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-05 20:52:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 127 transitions. [2025-02-05 20:52:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-02-05 20:52:49,624 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:52:49,624 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:52:49,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 20:52:49,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 20:52:49,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:52:49,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:52:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 660664441, now seen corresponding path program 1 times [2025-02-05 20:52:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:52:49,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6905861] [2025-02-05 20:52:49,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:52:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:52:49,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-02-05 20:52:50,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-02-05 20:52:50,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:52:50,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:52:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:52:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:52:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6905861] [2025-02-05 20:52:58,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6905861] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:52:58,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:52:58,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 20:52:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538146537] [2025-02-05 20:52:58,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:52:58,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 20:52:58,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:52:58,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 20:52:58,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:52:58,717 INFO L87 Difference]: Start difference. First operand 83 states and 127 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:52:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:52:59,314 INFO L93 Difference]: Finished difference Result 292 states and 430 transitions. [2025-02-05 20:52:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-05 20:52:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2025-02-05 20:52:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:52:59,318 INFO L225 Difference]: With dead ends: 292 [2025-02-05 20:52:59,321 INFO L226 Difference]: Without dead ends: 212 [2025-02-05 20:52:59,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2025-02-05 20:52:59,322 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 289 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 20:52:59,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 561 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 20:52:59,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-02-05 20:52:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 137. [2025-02-05 20:52:59,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 97 states have internal predecessors, (131), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-05 20:52:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 207 transitions. [2025-02-05 20:52:59,352 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 207 transitions. Word has length 197 [2025-02-05 20:52:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:52:59,353 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 207 transitions. [2025-02-05 20:52:59,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:52:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 207 transitions. [2025-02-05 20:52:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-02-05 20:52:59,358 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:52:59,358 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:52:59,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 20:52:59,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:52:59,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:52:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash 367261434, now seen corresponding path program 1 times [2025-02-05 20:52:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:52:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401485478] [2025-02-05 20:52:59,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:52:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:52:59,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-02-05 20:52:59,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-02-05 20:52:59,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:52:59,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:05,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:05,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401485478] [2025-02-05 20:53:05,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401485478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:05,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:05,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-05 20:53:05,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226266536] [2025-02-05 20:53:05,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:05,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 20:53:05,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:05,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 20:53:05,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2025-02-05 20:53:05,611 INFO L87 Difference]: Start difference. First operand 137 states and 207 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:06,247 INFO L93 Difference]: Finished difference Result 320 states and 471 transitions. [2025-02-05 20:53:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 20:53:06,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2025-02-05 20:53:06,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:06,251 INFO L225 Difference]: With dead ends: 320 [2025-02-05 20:53:06,251 INFO L226 Difference]: Without dead ends: 186 [2025-02-05 20:53:06,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2025-02-05 20:53:06,252 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 173 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:06,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 538 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 20:53:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-02-05 20:53:06,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 133. [2025-02-05 20:53:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.358695652173913) internal successors, (125), 93 states have internal predecessors, (125), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-05 20:53:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 201 transitions. [2025-02-05 20:53:06,268 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 201 transitions. Word has length 197 [2025-02-05 20:53:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:06,268 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 201 transitions. [2025-02-05 20:53:06,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 201 transitions. [2025-02-05 20:53:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-02-05 20:53:06,270 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:06,270 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:06,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 20:53:06,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:06,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:06,271 INFO L85 PathProgramCache]: Analyzing trace with hash 150130264, now seen corresponding path program 1 times [2025-02-05 20:53:06,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:06,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227415533] [2025-02-05 20:53:06,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:06,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:06,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-02-05 20:53:06,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-02-05 20:53:06,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:06,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:06,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:06,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227415533] [2025-02-05 20:53:06,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227415533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:06,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:06,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:53:06,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687684882] [2025-02-05 20:53:06,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:06,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:53:06,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:06,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:53:06,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:53:06,398 INFO L87 Difference]: Start difference. First operand 133 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:06,530 INFO L93 Difference]: Finished difference Result 358 states and 544 transitions. [2025-02-05 20:53:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 20:53:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2025-02-05 20:53:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:06,533 INFO L225 Difference]: With dead ends: 358 [2025-02-05 20:53:06,533 INFO L226 Difference]: Without dead ends: 228 [2025-02-05 20:53:06,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:53:06,534 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 66 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:06,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 334 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 20:53:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-02-05 20:53:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2025-02-05 20:53:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 145 states have (on average 1.3241379310344827) internal successors, (192), 147 states have internal predecessors, (192), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-02-05 20:53:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 344 transitions. [2025-02-05 20:53:06,569 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 344 transitions. Word has length 197 [2025-02-05 20:53:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:06,570 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 344 transitions. [2025-02-05 20:53:06,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 344 transitions. [2025-02-05 20:53:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:06,571 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:06,571 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:06,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 20:53:06,572 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:06,575 INFO L85 PathProgramCache]: Analyzing trace with hash 243202131, now seen corresponding path program 1 times [2025-02-05 20:53:06,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:06,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570698450] [2025-02-05 20:53:06,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:06,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:06,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:06,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:06,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:15,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570698450] [2025-02-05 20:53:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570698450] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 20:53:15,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352127007] [2025-02-05 20:53:15,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:15,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 20:53:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:15,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 20:53:15,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:53:15,679 INFO L87 Difference]: Start difference. First operand 226 states and 344 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:18,038 INFO L93 Difference]: Finished difference Result 440 states and 647 transitions. [2025-02-05 20:53:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-05 20:53:18,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:18,040 INFO L225 Difference]: With dead ends: 440 [2025-02-05 20:53:18,040 INFO L226 Difference]: Without dead ends: 310 [2025-02-05 20:53:18,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2025-02-05 20:53:18,041 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 317 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:18,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 601 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 20:53:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-02-05 20:53:18,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 231. [2025-02-05 20:53:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 150 states have (on average 1.3333333333333333) internal successors, (200), 152 states have internal predecessors, (200), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-02-05 20:53:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 352 transitions. [2025-02-05 20:53:18,070 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 352 transitions. Word has length 198 [2025-02-05 20:53:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:18,071 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 352 transitions. [2025-02-05 20:53:18,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 352 transitions. [2025-02-05 20:53:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:18,072 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:18,072 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:18,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 20:53:18,072 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:18,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:18,073 INFO L85 PathProgramCache]: Analyzing trace with hash -263635340, now seen corresponding path program 1 times [2025-02-05 20:53:18,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:18,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763301563] [2025-02-05 20:53:18,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:18,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:18,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:18,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:18,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:18,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:22,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763301563] [2025-02-05 20:53:22,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763301563] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 20:53:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017737473] [2025-02-05 20:53:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:22,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 20:53:22,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:22,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 20:53:22,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-02-05 20:53:22,860 INFO L87 Difference]: Start difference. First operand 231 states and 352 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:23,350 INFO L93 Difference]: Finished difference Result 407 states and 608 transitions. [2025-02-05 20:53:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 20:53:23,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:23,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:23,356 INFO L225 Difference]: With dead ends: 407 [2025-02-05 20:53:23,356 INFO L226 Difference]: Without dead ends: 272 [2025-02-05 20:53:23,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:53:23,358 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 116 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:23,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 487 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 20:53:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2025-02-05 20:53:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 234. [2025-02-05 20:53:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 153 states have (on average 1.3333333333333333) internal successors, (204), 155 states have internal predecessors, (204), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-02-05 20:53:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 356 transitions. [2025-02-05 20:53:23,391 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 356 transitions. Word has length 198 [2025-02-05 20:53:23,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:23,394 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 356 transitions. [2025-02-05 20:53:23,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 356 transitions. [2025-02-05 20:53:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:23,396 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:23,396 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:23,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 20:53:23,396 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:23,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:23,397 INFO L85 PathProgramCache]: Analyzing trace with hash -262356494, now seen corresponding path program 1 times [2025-02-05 20:53:23,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:23,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938386163] [2025-02-05 20:53:23,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:23,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:23,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:23,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:23,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:28,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:28,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938386163] [2025-02-05 20:53:28,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938386163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:28,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:28,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 20:53:28,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855464008] [2025-02-05 20:53:28,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:28,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 20:53:28,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:28,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 20:53:28,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-02-05 20:53:28,204 INFO L87 Difference]: Start difference. First operand 234 states and 356 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:28,766 INFO L93 Difference]: Finished difference Result 389 states and 585 transitions. [2025-02-05 20:53:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 20:53:28,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:28,768 INFO L225 Difference]: With dead ends: 389 [2025-02-05 20:53:28,768 INFO L226 Difference]: Without dead ends: 251 [2025-02-05 20:53:28,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-02-05 20:53:28,769 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:28,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 510 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 20:53:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-02-05 20:53:28,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 225. [2025-02-05 20:53:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 146 states have internal predecessors, (190), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-02-05 20:53:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 342 transitions. [2025-02-05 20:53:28,792 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 342 transitions. Word has length 198 [2025-02-05 20:53:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:28,792 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 342 transitions. [2025-02-05 20:53:28,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 342 transitions. [2025-02-05 20:53:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:28,794 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:28,794 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:28,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 20:53:28,794 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:28,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 808496628, now seen corresponding path program 1 times [2025-02-05 20:53:28,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:28,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952866171] [2025-02-05 20:53:28,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:28,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:28,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:28,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:28,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:28,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:35,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:35,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952866171] [2025-02-05 20:53:35,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952866171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:35,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:35,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 20:53:35,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863714012] [2025-02-05 20:53:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:35,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 20:53:35,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:35,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 20:53:35,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2025-02-05 20:53:35,782 INFO L87 Difference]: Start difference. First operand 225 states and 342 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:37,767 INFO L93 Difference]: Finished difference Result 535 states and 775 transitions. [2025-02-05 20:53:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-05 20:53:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:37,775 INFO L225 Difference]: With dead ends: 535 [2025-02-05 20:53:37,775 INFO L226 Difference]: Without dead ends: 406 [2025-02-05 20:53:37,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2025-02-05 20:53:37,777 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 518 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:37,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 530 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 20:53:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-02-05 20:53:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 231. [2025-02-05 20:53:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 150 states have (on average 1.34) internal successors, (201), 152 states have internal predecessors, (201), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-02-05 20:53:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 353 transitions. [2025-02-05 20:53:37,807 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 353 transitions. Word has length 198 [2025-02-05 20:53:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:37,807 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 353 transitions. [2025-02-05 20:53:37,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 353 transitions. [2025-02-05 20:53:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:37,809 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:37,809 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:37,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 20:53:37,809 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:37,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:37,810 INFO L85 PathProgramCache]: Analyzing trace with hash 937579347, now seen corresponding path program 1 times [2025-02-05 20:53:37,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:37,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982971380] [2025-02-05 20:53:37,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:37,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:37,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:37,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:37,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:37,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:37,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982971380] [2025-02-05 20:53:37,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982971380] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:37,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:37,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 20:53:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107254955] [2025-02-05 20:53:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:37,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 20:53:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:37,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 20:53:37,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 20:53:37,968 INFO L87 Difference]: Start difference. First operand 231 states and 353 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:38,237 INFO L93 Difference]: Finished difference Result 593 states and 903 transitions. [2025-02-05 20:53:38,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 20:53:38,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:38,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:38,244 INFO L225 Difference]: With dead ends: 593 [2025-02-05 20:53:38,245 INFO L226 Difference]: Without dead ends: 458 [2025-02-05 20:53:38,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-02-05 20:53:38,247 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 229 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:38,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 500 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 20:53:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2025-02-05 20:53:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 323. [2025-02-05 20:53:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 224 states have (on average 1.3616071428571428) internal successors, (305), 228 states have internal predecessors, (305), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-05 20:53:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 489 transitions. [2025-02-05 20:53:38,296 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 489 transitions. Word has length 198 [2025-02-05 20:53:38,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:38,296 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 489 transitions. [2025-02-05 20:53:38,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 489 transitions. [2025-02-05 20:53:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:38,301 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:38,301 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:38,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 20:53:38,301 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:38,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash 515093621, now seen corresponding path program 1 times [2025-02-05 20:53:38,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:38,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364405765] [2025-02-05 20:53:38,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:38,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:38,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:38,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:38,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:38,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:44,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:44,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364405765] [2025-02-05 20:53:44,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364405765] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:44,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:44,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 20:53:44,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164984599] [2025-02-05 20:53:44,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:44,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 20:53:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:44,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 20:53:44,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:53:44,893 INFO L87 Difference]: Start difference. First operand 323 states and 489 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:45,535 INFO L93 Difference]: Finished difference Result 757 states and 1123 transitions. [2025-02-05 20:53:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-05 20:53:45,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:45,538 INFO L225 Difference]: With dead ends: 757 [2025-02-05 20:53:45,538 INFO L226 Difference]: Without dead ends: 437 [2025-02-05 20:53:45,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2025-02-05 20:53:45,539 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 277 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:45,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 510 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 20:53:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-02-05 20:53:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 322. [2025-02-05 20:53:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 223 states have (on average 1.358744394618834) internal successors, (303), 227 states have internal predecessors, (303), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-05 20:53:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 487 transitions. [2025-02-05 20:53:45,575 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 487 transitions. Word has length 198 [2025-02-05 20:53:45,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:45,575 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 487 transitions. [2025-02-05 20:53:45,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:45,575 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 487 transitions. [2025-02-05 20:53:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:45,576 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:45,576 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:45,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 20:53:45,577 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:45,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:45,577 INFO L85 PathProgramCache]: Analyzing trace with hash 302938003, now seen corresponding path program 1 times [2025-02-05 20:53:45,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188640185] [2025-02-05 20:53:45,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:45,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:45,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:45,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:45,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:45,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:45,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:45,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188640185] [2025-02-05 20:53:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188640185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:53:45,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776542376] [2025-02-05 20:53:45,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:45,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:53:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:45,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:53:45,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:53:45,674 INFO L87 Difference]: Start difference. First operand 322 states and 487 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:45,787 INFO L93 Difference]: Finished difference Result 722 states and 1087 transitions. [2025-02-05 20:53:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 20:53:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:45,790 INFO L225 Difference]: With dead ends: 722 [2025-02-05 20:53:45,790 INFO L226 Difference]: Without dead ends: 403 [2025-02-05 20:53:45,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 20:53:45,792 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 85 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:45,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 351 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 20:53:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-02-05 20:53:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 308. [2025-02-05 20:53:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 215 states have (on average 1.344186046511628) internal successors, (289), 218 states have internal predecessors, (289), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-05 20:53:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 461 transitions. [2025-02-05 20:53:45,822 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 461 transitions. Word has length 198 [2025-02-05 20:53:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:45,822 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 461 transitions. [2025-02-05 20:53:45,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 461 transitions. [2025-02-05 20:53:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:45,823 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:45,823 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 20:53:45,824 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash 432020722, now seen corresponding path program 1 times [2025-02-05 20:53:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463616441] [2025-02-05 20:53:45,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:45,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:45,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:45,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:45,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:49,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:49,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463616441] [2025-02-05 20:53:49,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463616441] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:49,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:49,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 20:53:49,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195449289] [2025-02-05 20:53:49,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:49,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 20:53:49,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:49,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 20:53:49,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-05 20:53:49,594 INFO L87 Difference]: Start difference. First operand 308 states and 461 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:50,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:50,013 INFO L93 Difference]: Finished difference Result 655 states and 970 transitions. [2025-02-05 20:53:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 20:53:50,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:50,015 INFO L225 Difference]: With dead ends: 655 [2025-02-05 20:53:50,015 INFO L226 Difference]: Without dead ends: 350 [2025-02-05 20:53:50,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2025-02-05 20:53:50,017 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 139 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:50,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 506 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 20:53:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2025-02-05 20:53:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 316. [2025-02-05 20:53:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 223 states have (on average 1.3497757847533631) internal successors, (301), 226 states have internal predecessors, (301), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-05 20:53:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 473 transitions. [2025-02-05 20:53:50,048 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 473 transitions. Word has length 198 [2025-02-05 20:53:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:50,049 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 473 transitions. [2025-02-05 20:53:50,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 473 transitions. [2025-02-05 20:53:50,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:50,050 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:50,050 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:50,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 20:53:50,050 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:50,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:50,051 INFO L85 PathProgramCache]: Analyzing trace with hash 138617715, now seen corresponding path program 1 times [2025-02-05 20:53:50,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:50,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092143671] [2025-02-05 20:53:50,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:50,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:50,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:50,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:50,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:50,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:54,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:54,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:54,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092143671] [2025-02-05 20:53:54,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092143671] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:54,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:54,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 20:53:54,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507004480] [2025-02-05 20:53:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:54,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 20:53:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:54,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 20:53:54,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:53:54,268 INFO L87 Difference]: Start difference. First operand 316 states and 473 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:54,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:54,741 INFO L93 Difference]: Finished difference Result 727 states and 1065 transitions. [2025-02-05 20:53:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-05 20:53:54,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:54,747 INFO L225 Difference]: With dead ends: 727 [2025-02-05 20:53:54,747 INFO L226 Difference]: Without dead ends: 414 [2025-02-05 20:53:54,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2025-02-05 20:53:54,748 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 209 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:54,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 614 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 20:53:54,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-02-05 20:53:54,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 317. [2025-02-05 20:53:54,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 224 states have (on average 1.3526785714285714) internal successors, (303), 227 states have internal predecessors, (303), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-05 20:53:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 475 transitions. [2025-02-05 20:53:54,778 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 475 transitions. Word has length 198 [2025-02-05 20:53:54,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:54,778 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 475 transitions. [2025-02-05 20:53:54,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 475 transitions. [2025-02-05 20:53:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:54,779 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:54,780 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:54,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 20:53:54,780 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:54,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1596511828, now seen corresponding path program 1 times [2025-02-05 20:53:54,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:54,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204730546] [2025-02-05 20:53:54,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:54,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:54,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:54,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:54,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:54,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:53:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:53:57,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:53:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204730546] [2025-02-05 20:53:57,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204730546] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:53:57,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:53:57,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 20:53:57,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140530484] [2025-02-05 20:53:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:53:57,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 20:53:57,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:53:57,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 20:53:57,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-05 20:53:57,999 INFO L87 Difference]: Start difference. First operand 317 states and 475 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:53:58,382 INFO L93 Difference]: Finished difference Result 759 states and 1125 transitions. [2025-02-05 20:53:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 20:53:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:53:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:53:58,385 INFO L225 Difference]: With dead ends: 759 [2025-02-05 20:53:58,386 INFO L226 Difference]: Without dead ends: 445 [2025-02-05 20:53:58,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:53:58,387 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 143 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 20:53:58,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 449 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 20:53:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2025-02-05 20:53:58,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 359. [2025-02-05 20:53:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 266 states have (on average 1.3646616541353382) internal successors, (363), 269 states have internal predecessors, (363), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-05 20:53:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 535 transitions. [2025-02-05 20:53:58,420 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 535 transitions. Word has length 198 [2025-02-05 20:53:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:53:58,420 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 535 transitions. [2025-02-05 20:53:58,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:53:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 535 transitions. [2025-02-05 20:53:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 20:53:58,421 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:53:58,421 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:53:58,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 20:53:58,421 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:53:58,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:53:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1090953203, now seen corresponding path program 1 times [2025-02-05 20:53:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:53:58,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116621660] [2025-02-05 20:53:58,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:53:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:53:58,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 20:53:58,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 20:53:58,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:53:58,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:54:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-05 20:54:02,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:54:02,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116621660] [2025-02-05 20:54:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116621660] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:54:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:54:02,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 20:54:02,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655803623] [2025-02-05 20:54:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:54:02,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 20:54:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:54:02,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 20:54:02,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-05 20:54:02,253 INFO L87 Difference]: Start difference. First operand 359 states and 535 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:54:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:54:02,660 INFO L93 Difference]: Finished difference Result 758 states and 1120 transitions. [2025-02-05 20:54:02,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 20:54:02,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2025-02-05 20:54:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:54:02,663 INFO L225 Difference]: With dead ends: 758 [2025-02-05 20:54:02,663 INFO L226 Difference]: Without dead ends: 402 [2025-02-05 20:54:02,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2025-02-05 20:54:02,664 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 98 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 20:54:02,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 437 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 20:54:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-02-05 20:54:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 342. [2025-02-05 20:54:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 249 states have (on average 1.357429718875502) internal successors, (338), 252 states have internal predecessors, (338), 86 states have call successors, (86), 6 states have call predecessors, (86), 6 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-05 20:54:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 510 transitions. [2025-02-05 20:54:02,695 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 510 transitions. Word has length 198 [2025-02-05 20:54:02,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:54:02,696 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 510 transitions. [2025-02-05 20:54:02,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-05 20:54:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 510 transitions. [2025-02-05 20:54:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-02-05 20:54:02,697 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:54:02,697 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:54:02,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 20:54:02,697 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:54:02,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:54:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1583031241, now seen corresponding path program 1 times [2025-02-05 20:54:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:54:02,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723157367] [2025-02-05 20:54:02,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:54:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:54:02,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-02-05 20:54:02,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-02-05 20:54:02,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:54:02,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat