./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7fa1bdae56b6efd47000ddaf165b6bdba81ba7fc55edf9236eb8f83ebd1d8c6f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:37:22,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:37:22,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:37:22,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:37:22,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:37:22,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:37:22,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:37:22,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:37:22,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:37:22,226 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:37:22,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:37:22,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:37:22,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:37:22,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:37:22,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:37:22,229 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:37:22,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:37:22,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:37:22,230 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fa1bdae56b6efd47000ddaf165b6bdba81ba7fc55edf9236eb8f83ebd1d8c6f [2025-02-07 23:37:22,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:37:22,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:37:22,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:37:22,498 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:37:22,498 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:37:22,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c [2025-02-07 23:37:23,662 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aae091dd0/6a178e1bba2040ffbce6666acfcd811c/FLAG9fdc25204 [2025-02-07 23:37:24,077 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:37:24,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c [2025-02-07 23:37:24,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aae091dd0/6a178e1bba2040ffbce6666acfcd811c/FLAG9fdc25204 [2025-02-07 23:37:24,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aae091dd0/6a178e1bba2040ffbce6666acfcd811c [2025-02-07 23:37:24,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:37:24,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:37:24,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:37:24,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:37:24,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:37:24,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:37:24" (1/1) ... [2025-02-07 23:37:24,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a707027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:24, skipping insertion in model container [2025-02-07 23:37:24,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:37:24" (1/1) ... [2025-02-07 23:37:24,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:37:24,429 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c[1181,1194] [2025-02-07 23:37:24,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:37:24,847 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:37:24,855 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c[1181,1194] [2025-02-07 23:37:25,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:37:25,079 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:37:25,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25 WrapperNode [2025-02-07 23:37:25,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:37:25,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:37:25,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:37:25,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:37:25,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:25,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,070 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11502 [2025-02-07 23:37:26,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:37:26,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:37:26,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:37:26,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:37:26,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,531 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:37:26,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,790 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:26,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:27,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:37:27,064 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:37:27,064 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:37:27,064 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:37:27,065 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (1/1) ... [2025-02-07 23:37:27,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:37:27,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:37:27,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:37:27,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:37:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:37:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:37:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:37:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:37:27,630 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:37:27,632 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:37:39,425 INFO L? ?]: Removed 6721 outVars from TransFormulas that were not future-live. [2025-02-07 23:37:39,425 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:37:39,643 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:37:39,647 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:37:39,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:37:39 BoogieIcfgContainer [2025-02-07 23:37:39,647 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:37:39,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:37:39,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:37:39,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:37:39,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:37:24" (1/3) ... [2025-02-07 23:37:39,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b29c40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:37:39, skipping insertion in model container [2025-02-07 23:37:39,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:25" (2/3) ... [2025-02-07 23:37:39,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b29c40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:37:39, skipping insertion in model container [2025-02-07 23:37:39,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:37:39" (3/3) ... [2025-02-07 23:37:39,655 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c [2025-02-07 23:37:39,666 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:37:39,669 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.peg_solitaire.4.prop1-back-serstep.c that has 1 procedures, 3576 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:37:39,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:37:39,759 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@81c0ace, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:37:39,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:37:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 3576 states, 3574 states have (on average 1.5) internal successors, (5361), 3575 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2025-02-07 23:37:39,786 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:37:39,786 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:37:39,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:37:39,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:37:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash -247668546, now seen corresponding path program 1 times [2025-02-07 23:37:39,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:37:39,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642251479] [2025-02-07 23:37:39,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:37:39,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:37:39,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 292 statements into 1 equivalence classes. [2025-02-07 23:37:40,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 292 of 292 statements. [2025-02-07 23:37:40,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:37:40,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:37:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:37:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:37:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642251479] [2025-02-07 23:37:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642251479] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:37:41,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:37:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:37:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975978062] [2025-02-07 23:37:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:37:41,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:37:41,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:37:41,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:37:41,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:37:41,061 INFO L87 Difference]: Start difference. First operand has 3576 states, 3574 states have (on average 1.5) internal successors, (5361), 3575 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:37:42,471 INFO L93 Difference]: Finished difference Result 7035 states and 10549 transitions. [2025-02-07 23:37:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:37:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 292 [2025-02-07 23:37:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:37:42,505 INFO L225 Difference]: With dead ends: 7035 [2025-02-07 23:37:42,505 INFO L226 Difference]: Without dead ends: 3576 [2025-02-07 23:37:42,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:37:42,517 INFO L435 NwaCegarLoop]: 4464 mSDtfsCounter, 0 mSDsluCounter, 8923 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13387 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-07 23:37:42,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13387 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-07 23:37:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2025-02-07 23:37:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3576. [2025-02-07 23:37:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3575 states have (on average 1.4993006993006992) internal successors, (5360), 3575 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5360 transitions. [2025-02-07 23:37:42,656 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5360 transitions. Word has length 292 [2025-02-07 23:37:42,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:37:42,657 INFO L471 AbstractCegarLoop]: Abstraction has 3576 states and 5360 transitions. [2025-02-07 23:37:42,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:42,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5360 transitions. [2025-02-07 23:37:42,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2025-02-07 23:37:42,664 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:37:42,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:37:42,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:37:42,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:37:42,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:37:42,666 INFO L85 PathProgramCache]: Analyzing trace with hash 916894045, now seen corresponding path program 1 times [2025-02-07 23:37:42,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:37:42,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743124354] [2025-02-07 23:37:42,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:37:42,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:37:42,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 293 statements into 1 equivalence classes. [2025-02-07 23:37:42,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 293 of 293 statements. [2025-02-07 23:37:42,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:37:42,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:37:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:37:43,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:37:43,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743124354] [2025-02-07 23:37:43,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743124354] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:37:43,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:37:43,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:37:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477753671] [2025-02-07 23:37:43,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:37:43,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:37:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:37:43,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:37:43,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:37:43,260 INFO L87 Difference]: Start difference. First operand 3576 states and 5360 transitions. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:37:44,521 INFO L93 Difference]: Finished difference Result 7037 states and 10548 transitions. [2025-02-07 23:37:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:37:44,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2025-02-07 23:37:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:37:44,532 INFO L225 Difference]: With dead ends: 7037 [2025-02-07 23:37:44,533 INFO L226 Difference]: Without dead ends: 3578 [2025-02-07 23:37:44,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:37:44,538 INFO L435 NwaCegarLoop]: 4464 mSDtfsCounter, 0 mSDsluCounter, 8920 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13384 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:37:44,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13384 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-07 23:37:44,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2025-02-07 23:37:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3578. [2025-02-07 23:37:44,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3578 states, 3577 states have (on average 1.4990215264187867) internal successors, (5362), 3577 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 5362 transitions. [2025-02-07 23:37:44,596 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 5362 transitions. Word has length 293 [2025-02-07 23:37:44,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:37:44,597 INFO L471 AbstractCegarLoop]: Abstraction has 3578 states and 5362 transitions. [2025-02-07 23:37:44,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 5362 transitions. [2025-02-07 23:37:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2025-02-07 23:37:44,600 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:37:44,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:37:44,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:37:44,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:37:44,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:37:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash 290458777, now seen corresponding path program 1 times [2025-02-07 23:37:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:37:44,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733786059] [2025-02-07 23:37:44,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:37:44,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:37:44,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 294 statements into 1 equivalence classes. [2025-02-07 23:37:44,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 294 of 294 statements. [2025-02-07 23:37:44,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:37:44,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:37:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:37:45,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:37:45,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733786059] [2025-02-07 23:37:45,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733786059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:37:45,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:37:45,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:37:45,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242369311] [2025-02-07 23:37:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:37:45,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:37:45,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:37:45,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:37:45,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:37:45,069 INFO L87 Difference]: Start difference. First operand 3578 states and 5362 transitions. Second operand has 5 states, 5 states have (on average 58.8) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:37:47,085 INFO L93 Difference]: Finished difference Result 10486 states and 15717 transitions. [2025-02-07 23:37:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:37:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2025-02-07 23:37:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:37:47,107 INFO L225 Difference]: With dead ends: 10486 [2025-02-07 23:37:47,108 INFO L226 Difference]: Without dead ends: 7025 [2025-02-07 23:37:47,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:37:47,115 INFO L435 NwaCegarLoop]: 4462 mSDtfsCounter, 5056 mSDsluCounter, 13235 mSDsCounter, 0 mSdLazyCounter, 3560 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 17697 SdHoareTripleChecker+Invalid, 3560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:37:47,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5056 Valid, 17697 Invalid, 3560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3560 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-07 23:37:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2025-02-07 23:37:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 4032. [2025-02-07 23:37:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4031 states have (on average 1.4988836516993302) internal successors, (6042), 4031 states have internal predecessors, (6042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 6042 transitions. [2025-02-07 23:37:47,201 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 6042 transitions. Word has length 294 [2025-02-07 23:37:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:37:47,201 INFO L471 AbstractCegarLoop]: Abstraction has 4032 states and 6042 transitions. [2025-02-07 23:37:47,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 6042 transitions. [2025-02-07 23:37:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2024 [2025-02-07 23:37:47,261 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:37:47,262 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:37:47,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:37:47,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:37:47,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:37:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash 535854967, now seen corresponding path program 1 times [2025-02-07 23:37:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:37:47,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106968595] [2025-02-07 23:37:47,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:37:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:37:47,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2023 statements into 1 equivalence classes. [2025-02-07 23:37:48,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2023 of 2023 statements. [2025-02-07 23:37:48,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:37:48,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:37:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-02-07 23:37:53,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:37:53,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106968595] [2025-02-07 23:37:53,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106968595] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:37:53,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:37:53,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:37:53,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109047124] [2025-02-07 23:37:53,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:37:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:37:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:37:53,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:37:53,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:37:53,177 INFO L87 Difference]: Start difference. First operand 4032 states and 6042 transitions. Second operand has 5 states, 5 states have (on average 359.6) internal successors, (1798), 5 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:37:54,132 INFO L93 Difference]: Finished difference Result 7497 states and 11234 transitions. [2025-02-07 23:37:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:37:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 359.6) internal successors, (1798), 5 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2023 [2025-02-07 23:37:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:37:54,151 INFO L225 Difference]: With dead ends: 7497 [2025-02-07 23:37:54,151 INFO L226 Difference]: Without dead ends: 4036 [2025-02-07 23:37:54,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:37:54,157 INFO L435 NwaCegarLoop]: 4464 mSDtfsCounter, 0 mSDsluCounter, 8920 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13384 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:37:54,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13384 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:37:54,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2025-02-07 23:37:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 4032. [2025-02-07 23:37:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4031 states have (on average 1.4988836516993302) internal successors, (6042), 4031 states have internal predecessors, (6042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 6042 transitions. [2025-02-07 23:37:54,224 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 6042 transitions. Word has length 2023 [2025-02-07 23:37:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:37:54,227 INFO L471 AbstractCegarLoop]: Abstraction has 4032 states and 6042 transitions. [2025-02-07 23:37:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.6) internal successors, (1798), 5 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:37:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 6042 transitions. [2025-02-07 23:37:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2025 [2025-02-07 23:37:54,307 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:37:54,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:37:54,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:37:54,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:37:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:37:54,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1320002532, now seen corresponding path program 1 times [2025-02-07 23:37:54,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:37:54,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177470818] [2025-02-07 23:37:54,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:37:54,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:37:54,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2024 statements into 1 equivalence classes. [2025-02-07 23:37:55,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2024 of 2024 statements. [2025-02-07 23:37:55,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:37:55,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:37:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-02-07 23:37:58,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:37:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177470818] [2025-02-07 23:37:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177470818] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:37:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:37:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:37:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72600430] [2025-02-07 23:37:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:37:58,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:37:58,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:37:58,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:37:58,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:37:58,840 INFO L87 Difference]: Start difference. First operand 4032 states and 6042 transitions. Second operand has 5 states, 5 states have (on average 360.2) internal successors, (1801), 5 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:00,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:00,067 INFO L93 Difference]: Finished difference Result 7501 states and 11240 transitions. [2025-02-07 23:38:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:00,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 360.2) internal successors, (1801), 5 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2024 [2025-02-07 23:38:00,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:00,080 INFO L225 Difference]: With dead ends: 7501 [2025-02-07 23:38:00,080 INFO L226 Difference]: Without dead ends: 4036 [2025-02-07 23:38:00,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:38:00,084 INFO L435 NwaCegarLoop]: 4464 mSDtfsCounter, 0 mSDsluCounter, 13379 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17843 SdHoareTripleChecker+Invalid, 3589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:00,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17843 Invalid, 3589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3588 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-07 23:38:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2025-02-07 23:38:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 4034. [2025-02-07 23:38:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4034 states, 4033 states have (on average 1.498636250929829) internal successors, (6044), 4033 states have internal predecessors, (6044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 6044 transitions. [2025-02-07 23:38:00,140 INFO L78 Accepts]: Start accepts. Automaton has 4034 states and 6044 transitions. Word has length 2024 [2025-02-07 23:38:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:00,142 INFO L471 AbstractCegarLoop]: Abstraction has 4034 states and 6044 transitions. [2025-02-07 23:38:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 360.2) internal successors, (1801), 5 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4034 states and 6044 transitions. [2025-02-07 23:38:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2026 [2025-02-07 23:38:00,163 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:00,165 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:38:00,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:38:00,166 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:00,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:00,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1329791790, now seen corresponding path program 1 times [2025-02-07 23:38:00,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:00,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114873225] [2025-02-07 23:38:00,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:00,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:00,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2025 statements into 1 equivalence classes. [2025-02-07 23:38:01,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2025 of 2025 statements. [2025-02-07 23:38:01,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:01,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-02-07 23:38:04,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:04,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114873225] [2025-02-07 23:38:04,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114873225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:04,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989990180] [2025-02-07 23:38:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:04,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:38:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:04,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:38:04,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:04,138 INFO L87 Difference]: Start difference. First operand 4034 states and 6044 transitions. Second operand has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:05,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:05,074 INFO L93 Difference]: Finished difference Result 7509 states and 11250 transitions. [2025-02-07 23:38:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:05,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2025 [2025-02-07 23:38:05,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:05,085 INFO L225 Difference]: With dead ends: 7509 [2025-02-07 23:38:05,085 INFO L226 Difference]: Without dead ends: 4038 [2025-02-07 23:38:05,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:05,090 INFO L435 NwaCegarLoop]: 4464 mSDtfsCounter, 0 mSDsluCounter, 8920 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13384 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:05,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13384 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-07 23:38:05,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2025-02-07 23:38:05,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 4036. [2025-02-07 23:38:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 4035 states have (on average 1.4983890954151178) internal successors, (6046), 4035 states have internal predecessors, (6046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6046 transitions. [2025-02-07 23:38:05,141 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 6046 transitions. Word has length 2025 [2025-02-07 23:38:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:05,143 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 6046 transitions. [2025-02-07 23:38:05,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 6046 transitions. [2025-02-07 23:38:05,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2027 [2025-02-07 23:38:05,162 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:05,163 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:38:05,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:38:05,164 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:05,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:05,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1594586121, now seen corresponding path program 1 times [2025-02-07 23:38:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:05,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12937284] [2025-02-07 23:38:05,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:05,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:05,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2026 statements into 1 equivalence classes. [2025-02-07 23:38:30,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2026 of 2026 statements. [2025-02-07 23:38:30,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:30,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:32,895 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 58 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:32,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:32,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12937284] [2025-02-07 23:38:32,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12937284] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:38:32,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873351567] [2025-02-07 23:38:32,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:32,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:38:32,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:38:32,898 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) [2025-02-07 23:38:32,900 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 [2025-02-07 23:38:34,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2026 statements into 1 equivalence classes. [2025-02-07 23:38:35,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2026 of 2026 statements. [2025-02-07 23:38:35,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:35,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:35,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 11429 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-02-07 23:38:35,671 INFO L279 TraceCheckSpWp]: Computing forward predicates...