./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash edcd3b88905cdb3dfa6352c7312a9e62232b34d98b184187999b7d487914cd6b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:43:14,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:43:14,438 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 02:43:14,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:43:14,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:43:14,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:43:14,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:43:14,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:43:14,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:43:14,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:43:14,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:43:14,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:43:14,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:43:14,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:43:14,460 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:43:14,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:43:14,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:43:14,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 02:43:14,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:43:14,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:43:14,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:43:14,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:43:14,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:43:14,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:43:14,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:43:14,463 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:43:14,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:43:14,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:43:14,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:43:14,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:43:14,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:43:14,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:43:14,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:43:14,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 02:43:14,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 02:43:14,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:43:14,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:43:14,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:43:14,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:43:14,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edcd3b88905cdb3dfa6352c7312a9e62232b34d98b184187999b7d487914cd6b [2024-11-10 02:43:14,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:43:14,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:43:14,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:43:14,764 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:43:14,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:43:14,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c [2024-11-10 02:43:16,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:43:16,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:43:16,702 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c [2024-11-10 02:43:16,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a71b95451/2d909b19f5d24ccbb31f6188896cfb5d/FLAGe1279495c [2024-11-10 02:43:16,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a71b95451/2d909b19f5d24ccbb31f6188896cfb5d [2024-11-10 02:43:16,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:43:16,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:43:16,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:43:16,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:43:16,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:43:16,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:16" (1/1) ... [2024-11-10 02:43:16,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604b67a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:16, skipping insertion in model container [2024-11-10 02:43:16,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:16" (1/1) ... [2024-11-10 02:43:16,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:43:17,066 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c[1181,1194] [2024-11-10 02:43:17,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:43:17,504 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:43:17,513 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c[1181,1194] [2024-11-10 02:43:17,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:43:17,799 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:43:17,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17 WrapperNode [2024-11-10 02:43:17,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:43:17,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:43:17,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:43:17,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:43:17,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:17,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:19,615 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12489 [2024-11-10 02:43:19,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:43:19,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:43:19,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:43:19,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:43:19,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:19,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:19,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,277 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]. [2024-11-10 02:43:20,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:20,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:21,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:43:21,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:43:21,182 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:43:21,182 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:43:21,183 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (1/1) ... [2024-11-10 02:43:21,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:43:21,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:43:21,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 02:43:21,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 02:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 02:43:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:43:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:43:21,733 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:43:21,735 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:43:41,230 INFO L? ?]: Removed 6764 outVars from TransFormulas that were not future-live. [2024-11-10 02:43:41,230 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:43:41,529 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:43:41,530 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:43:41,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:41 BoogieIcfgContainer [2024-11-10 02:43:41,531 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:43:41,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:43:41,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:43:41,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:43:41,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:43:16" (1/3) ... [2024-11-10 02:43:41,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c4e662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:41, skipping insertion in model container [2024-11-10 02:43:41,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:17" (2/3) ... [2024-11-10 02:43:41,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c4e662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:41, skipping insertion in model container [2024-11-10 02:43:41,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:41" (3/3) ... [2024-11-10 02:43:41,540 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.reader_writer.1.prop1-back-serstep.c [2024-11-10 02:43:41,553 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:43:41,554 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:43:41,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:43:41,672 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;@6192bc69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:43:41,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:43:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 4493 states, 4491 states have (on average 1.4994433311066577) internal successors, (6734), 4492 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-10 02:43:41,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:41,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:41,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:41,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1198090566, now seen corresponding path program 1 times [2024-11-10 02:43:41,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:41,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683567733] [2024-11-10 02:43:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:43,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:43,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683567733] [2024-11-10 02:43:43,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683567733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:43,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:43,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291129148] [2024-11-10 02:43:43,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:43,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:43,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:43,266 INFO L87 Difference]: Start difference. First operand has 4493 states, 4491 states have (on average 1.4994433311066577) internal successors, (6734), 4492 states have internal predecessors, (6734), 0 states have call successors, (0), 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 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:45,226 INFO L93 Difference]: Finished difference Result 8825 states and 13231 transitions. [2024-11-10 02:43:45,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:45,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-11-10 02:43:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:45,251 INFO L225 Difference]: With dead ends: 8825 [2024-11-10 02:43:45,252 INFO L226 Difference]: Without dead ends: 4490 [2024-11-10 02:43:45,262 INFO L431 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 [2024-11-10 02:43:45,265 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11207 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16813 SdHoareTripleChecker+Invalid, 3370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:45,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16813 Invalid, 3370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3370 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 02:43:45,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2024-11-10 02:43:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4490. [2024-11-10 02:43:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4490 states, 4489 states have (on average 1.4992203163288038) internal successors, (6730), 4489 states have internal predecessors, (6730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6730 transitions. [2024-11-10 02:43:45,395 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6730 transitions. Word has length 328 [2024-11-10 02:43:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:45,396 INFO L471 AbstractCegarLoop]: Abstraction has 4490 states and 6730 transitions. [2024-11-10 02:43:45,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6730 transitions. [2024-11-10 02:43:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-10 02:43:45,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:45,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:45,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 02:43:45,401 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:45,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1658958208, now seen corresponding path program 1 times [2024-11-10 02:43:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:45,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603088354] [2024-11-10 02:43:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:45,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603088354] [2024-11-10 02:43:45,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603088354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:45,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:45,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553254524] [2024-11-10 02:43:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:45,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:45,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:45,899 INFO L87 Difference]: Start difference. First operand 4490 states and 6730 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:47,725 INFO L93 Difference]: Finished difference Result 8824 states and 13227 transitions. [2024-11-10 02:43:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2024-11-10 02:43:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:47,739 INFO L225 Difference]: With dead ends: 8824 [2024-11-10 02:43:47,739 INFO L226 Difference]: Without dead ends: 4492 [2024-11-10 02:43:47,745 INFO L431 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 [2024-11-10 02:43:47,746 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:47,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 02:43:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4492 states. [2024-11-10 02:43:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4492 to 4492. [2024-11-10 02:43:47,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 4491 states have (on average 1.498997995991984) internal successors, (6732), 4491 states have internal predecessors, (6732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6732 transitions. [2024-11-10 02:43:47,821 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6732 transitions. Word has length 329 [2024-11-10 02:43:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:47,822 INFO L471 AbstractCegarLoop]: Abstraction has 4492 states and 6732 transitions. [2024-11-10 02:43:47,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6732 transitions. [2024-11-10 02:43:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-10 02:43:47,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:47,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:47,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 02:43:47,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:47,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash -364652833, now seen corresponding path program 1 times [2024-11-10 02:43:47,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:47,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107024504] [2024-11-10 02:43:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:48,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107024504] [2024-11-10 02:43:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107024504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:48,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:48,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178691756] [2024-11-10 02:43:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:48,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:48,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:48,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:48,319 INFO L87 Difference]: Start difference. First operand 4492 states and 6732 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:50,171 INFO L93 Difference]: Finished difference Result 8828 states and 13231 transitions. [2024-11-10 02:43:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 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 330 [2024-11-10 02:43:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:50,184 INFO L225 Difference]: With dead ends: 8828 [2024-11-10 02:43:50,184 INFO L226 Difference]: Without dead ends: 4494 [2024-11-10 02:43:50,191 INFO L431 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 [2024-11-10 02:43:50,192 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:50,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 02:43:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2024-11-10 02:43:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 4494. [2024-11-10 02:43:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 4493 states have (on average 1.4987758735811263) internal successors, (6734), 4493 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 6734 transitions. [2024-11-10 02:43:50,276 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 6734 transitions. Word has length 330 [2024-11-10 02:43:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:50,277 INFO L471 AbstractCegarLoop]: Abstraction has 4494 states and 6734 transitions. [2024-11-10 02:43:50,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 6734 transitions. [2024-11-10 02:43:50,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-10 02:43:50,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:50,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:50,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 02:43:50,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:50,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash -9633829, now seen corresponding path program 1 times [2024-11-10 02:43:50,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:50,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729310084] [2024-11-10 02:43:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:50,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:50,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729310084] [2024-11-10 02:43:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729310084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:50,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602928954] [2024-11-10 02:43:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:50,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:50,761 INFO L87 Difference]: Start difference. First operand 4494 states and 6734 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:52,341 INFO L93 Difference]: Finished difference Result 8832 states and 13235 transitions. [2024-11-10 02:43:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:52,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 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 331 [2024-11-10 02:43:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:52,358 INFO L225 Difference]: With dead ends: 8832 [2024-11-10 02:43:52,358 INFO L226 Difference]: Without dead ends: 4496 [2024-11-10 02:43:52,366 INFO L431 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 [2024-11-10 02:43:52,367 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:52,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:43:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2024-11-10 02:43:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4496. [2024-11-10 02:43:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4495 states have (on average 1.4985539488320356) internal successors, (6736), 4495 states have internal predecessors, (6736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 6736 transitions. [2024-11-10 02:43:52,463 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 6736 transitions. Word has length 331 [2024-11-10 02:43:52,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:52,463 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 6736 transitions. [2024-11-10 02:43:52,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 6736 transitions. [2024-11-10 02:43:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-10 02:43:52,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:52,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:52,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 02:43:52,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:52,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -79757820, now seen corresponding path program 1 times [2024-11-10 02:43:52,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:52,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430221259] [2024-11-10 02:43:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:52,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:52,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430221259] [2024-11-10 02:43:52,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430221259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:52,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:52,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:52,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000309928] [2024-11-10 02:43:52,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:52,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:52,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:52,775 INFO L87 Difference]: Start difference. First operand 4496 states and 6736 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:54,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:54,322 INFO L93 Difference]: Finished difference Result 8836 states and 13239 transitions. [2024-11-10 02:43:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:54,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 332 [2024-11-10 02:43:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:54,334 INFO L225 Difference]: With dead ends: 8836 [2024-11-10 02:43:54,335 INFO L226 Difference]: Without dead ends: 4498 [2024-11-10 02:43:54,340 INFO L431 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 [2024-11-10 02:43:54,341 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16805 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:54,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16805 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:43:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2024-11-10 02:43:54,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4498. [2024-11-10 02:43:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 4497 states have (on average 1.4983322214809873) internal successors, (6738), 4497 states have internal predecessors, (6738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6738 transitions. [2024-11-10 02:43:54,404 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6738 transitions. Word has length 332 [2024-11-10 02:43:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:54,404 INFO L471 AbstractCegarLoop]: Abstraction has 4498 states and 6738 transitions. [2024-11-10 02:43:54,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6738 transitions. [2024-11-10 02:43:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-10 02:43:54,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:54,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:54,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 02:43:54,408 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:54,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:54,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2039504694, now seen corresponding path program 1 times [2024-11-10 02:43:54,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:54,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534853522] [2024-11-10 02:43:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:54,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:54,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534853522] [2024-11-10 02:43:54,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534853522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:54,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:54,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:54,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047203964] [2024-11-10 02:43:54,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:54,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:54,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:54,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:54,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:54,824 INFO L87 Difference]: Start difference. First operand 4498 states and 6738 transitions. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:56,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:56,457 INFO L93 Difference]: Finished difference Result 8846 states and 13251 transitions. [2024-11-10 02:43:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:56,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 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 333 [2024-11-10 02:43:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:56,472 INFO L225 Difference]: With dead ends: 8846 [2024-11-10 02:43:56,472 INFO L226 Difference]: Without dead ends: 4506 [2024-11-10 02:43:56,477 INFO L431 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 [2024-11-10 02:43:56,478 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 3 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:56,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:43:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2024-11-10 02:43:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4502. [2024-11-10 02:43:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4502 states, 4501 states have (on average 1.4983337036214175) internal successors, (6744), 4501 states have internal predecessors, (6744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4502 states to 4502 states and 6744 transitions. [2024-11-10 02:43:56,529 INFO L78 Accepts]: Start accepts. Automaton has 4502 states and 6744 transitions. Word has length 333 [2024-11-10 02:43:56,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:56,530 INFO L471 AbstractCegarLoop]: Abstraction has 4502 states and 6744 transitions. [2024-11-10 02:43:56,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4502 states and 6744 transitions. [2024-11-10 02:43:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-10 02:43:56,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:56,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:56,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 02:43:56,533 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:56,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash -591127511, now seen corresponding path program 1 times [2024-11-10 02:43:56,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:56,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292852933] [2024-11-10 02:43:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:56,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:56,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292852933] [2024-11-10 02:43:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292852933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:56,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:56,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:56,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264844379] [2024-11-10 02:43:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:56,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:56,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:56,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:56,976 INFO L87 Difference]: Start difference. First operand 4502 states and 6744 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:43:58,740 INFO L93 Difference]: Finished difference Result 8852 states and 13261 transitions. [2024-11-10 02:43:58,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:43:58,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2024-11-10 02:43:58,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:43:58,749 INFO L225 Difference]: With dead ends: 8852 [2024-11-10 02:43:58,749 INFO L226 Difference]: Without dead ends: 4508 [2024-11-10 02:43:58,753 INFO L431 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 [2024-11-10 02:43:58,753 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 4 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 02:43:58,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 02:43:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2024-11-10 02:43:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4508. [2024-11-10 02:43:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 1.49811404481917) internal successors, (6752), 4507 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6752 transitions. [2024-11-10 02:43:58,809 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6752 transitions. Word has length 334 [2024-11-10 02:43:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:43:58,810 INFO L471 AbstractCegarLoop]: Abstraction has 4508 states and 6752 transitions. [2024-11-10 02:43:58,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:43:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6752 transitions. [2024-11-10 02:43:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-10 02:43:58,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:43:58,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:43:58,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 02:43:58,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:43:58,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:43:58,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1647382836, now seen corresponding path program 1 times [2024-11-10 02:43:58,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:43:58,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429762371] [2024-11-10 02:43:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:43:58,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:43:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:43:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:43:59,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:43:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429762371] [2024-11-10 02:43:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429762371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:43:59,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:43:59,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:43:59,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880274997] [2024-11-10 02:43:59,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:43:59,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:43:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:43:59,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:43:59,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:43:59,107 INFO L87 Difference]: Start difference. First operand 4508 states and 6752 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:00,653 INFO L93 Difference]: Finished difference Result 8860 states and 13271 transitions. [2024-11-10 02:44:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:00,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 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 335 [2024-11-10 02:44:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:00,660 INFO L225 Difference]: With dead ends: 8860 [2024-11-10 02:44:00,661 INFO L226 Difference]: Without dead ends: 4510 [2024-11-10 02:44:00,666 INFO L431 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 [2024-11-10 02:44:00,669 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16805 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:00,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16805 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:44:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2024-11-10 02:44:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4510. [2024-11-10 02:44:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 4509 states have (on average 1.4978931026835218) internal successors, (6754), 4509 states have internal predecessors, (6754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 6754 transitions. [2024-11-10 02:44:00,731 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 6754 transitions. Word has length 335 [2024-11-10 02:44:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:00,731 INFO L471 AbstractCegarLoop]: Abstraction has 4510 states and 6754 transitions. [2024-11-10 02:44:00,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 6754 transitions. [2024-11-10 02:44:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-10 02:44:00,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:00,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 02:44:00,734 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash -439897234, now seen corresponding path program 1 times [2024-11-10 02:44:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782631566] [2024-11-10 02:44:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782631566] [2024-11-10 02:44:01,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782631566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:01,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:01,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:44:01,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834191187] [2024-11-10 02:44:01,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:01,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:44:01,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:01,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:44:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:44:01,098 INFO L87 Difference]: Start difference. First operand 4510 states and 6754 transitions. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:03,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:03,065 INFO L93 Difference]: Finished difference Result 8870 states and 13283 transitions. [2024-11-10 02:44:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:44:03,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 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 336 [2024-11-10 02:44:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:03,073 INFO L225 Difference]: With dead ends: 8870 [2024-11-10 02:44:03,073 INFO L226 Difference]: Without dead ends: 4518 [2024-11-10 02:44:03,077 INFO L431 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 [2024-11-10 02:44:03,078 INFO L432 NwaCegarLoop]: 5604 mSDtfsCounter, 3 mSDsluCounter, 16798 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22402 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:03,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22402 Invalid, 4511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 02:44:03,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2024-11-10 02:44:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4514. [2024-11-10 02:44:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4514 states, 4513 states have (on average 1.497894970086417) internal successors, (6760), 4513 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 6760 transitions. [2024-11-10 02:44:03,129 INFO L78 Accepts]: Start accepts. Automaton has 4514 states and 6760 transitions. Word has length 336 [2024-11-10 02:44:03,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:03,130 INFO L471 AbstractCegarLoop]: Abstraction has 4514 states and 6760 transitions. [2024-11-10 02:44:03,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4514 states and 6760 transitions. [2024-11-10 02:44:03,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-10 02:44:03,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:03,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:03,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 02:44:03,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:03,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:03,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1191647751, now seen corresponding path program 1 times [2024-11-10 02:44:03,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:03,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339668321] [2024-11-10 02:44:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:03,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:03,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339668321] [2024-11-10 02:44:03,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339668321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:03,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:03,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84001991] [2024-11-10 02:44:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:03,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:03,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:03,484 INFO L87 Difference]: Start difference. First operand 4514 states and 6760 transitions. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:05,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:05,080 INFO L93 Difference]: Finished difference Result 8872 states and 13287 transitions. [2024-11-10 02:44:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:05,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2024-11-10 02:44:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:05,088 INFO L225 Difference]: With dead ends: 8872 [2024-11-10 02:44:05,088 INFO L226 Difference]: Without dead ends: 4516 [2024-11-10 02:44:05,093 INFO L431 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 [2024-11-10 02:44:05,093 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:05,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:44:05,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2024-11-10 02:44:05,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4516. [2024-11-10 02:44:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 1.4976744186046511) internal successors, (6762), 4515 states have internal predecessors, (6762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6762 transitions. [2024-11-10 02:44:05,141 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6762 transitions. Word has length 337 [2024-11-10 02:44:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:05,141 INFO L471 AbstractCegarLoop]: Abstraction has 4516 states and 6762 transitions. [2024-11-10 02:44:05,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6762 transitions. [2024-11-10 02:44:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-10 02:44:05,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:05,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:05,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 02:44:05,144 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:05,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:05,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2144815539, now seen corresponding path program 1 times [2024-11-10 02:44:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:05,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702525493] [2024-11-10 02:44:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:05,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:05,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:05,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702525493] [2024-11-10 02:44:05,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702525493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:05,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:05,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:05,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536732190] [2024-11-10 02:44:05,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:05,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:05,435 INFO L87 Difference]: Start difference. First operand 4516 states and 6762 transitions. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:06,887 INFO L93 Difference]: Finished difference Result 8876 states and 13291 transitions. [2024-11-10 02:44:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 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 338 [2024-11-10 02:44:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:06,894 INFO L225 Difference]: With dead ends: 8876 [2024-11-10 02:44:06,895 INFO L226 Difference]: Without dead ends: 4518 [2024-11-10 02:44:06,898 INFO L431 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 [2024-11-10 02:44:06,899 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16805 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:06,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16805 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 02:44:06,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2024-11-10 02:44:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4518. [2024-11-10 02:44:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4517 states have (on average 1.497454062430817) internal successors, (6764), 4517 states have internal predecessors, (6764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:06,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6764 transitions. [2024-11-10 02:44:06,947 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6764 transitions. Word has length 338 [2024-11-10 02:44:06,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:06,948 INFO L471 AbstractCegarLoop]: Abstraction has 4518 states and 6764 transitions. [2024-11-10 02:44:06,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:06,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6764 transitions. [2024-11-10 02:44:06,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-10 02:44:06,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:06,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:06,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 02:44:06,950 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:06,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:06,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2086682178, now seen corresponding path program 1 times [2024-11-10 02:44:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:06,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936669493] [2024-11-10 02:44:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:06,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:07,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936669493] [2024-11-10 02:44:07,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936669493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:07,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:07,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:44:07,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105807417] [2024-11-10 02:44:07,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:07,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:44:07,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:07,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:44:07,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:44:07,324 INFO L87 Difference]: Start difference. First operand 4518 states and 6764 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:08,790 INFO L93 Difference]: Finished difference Result 8886 states and 13303 transitions. [2024-11-10 02:44:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:44:08,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 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 339 [2024-11-10 02:44:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:08,795 INFO L225 Difference]: With dead ends: 8886 [2024-11-10 02:44:08,795 INFO L226 Difference]: Without dead ends: 4526 [2024-11-10 02:44:08,799 INFO L431 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 [2024-11-10 02:44:08,799 INFO L432 NwaCegarLoop]: 5604 mSDtfsCounter, 4 mSDsluCounter, 11202 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16806 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:08,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16806 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 02:44:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2024-11-10 02:44:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4522. [2024-11-10 02:44:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4522 states, 4521 states have (on average 1.4974563149745632) internal successors, (6770), 4521 states have internal predecessors, (6770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4522 states to 4522 states and 6770 transitions. [2024-11-10 02:44:08,840 INFO L78 Accepts]: Start accepts. Automaton has 4522 states and 6770 transitions. Word has length 339 [2024-11-10 02:44:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:08,840 INFO L471 AbstractCegarLoop]: Abstraction has 4522 states and 6770 transitions. [2024-11-10 02:44:08,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4522 states and 6770 transitions. [2024-11-10 02:44:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-10 02:44:08,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:08,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:08,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 02:44:08,842 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:08,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash -436146440, now seen corresponding path program 1 times [2024-11-10 02:44:08,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:08,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971086263] [2024-11-10 02:44:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:08,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:09,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971086263] [2024-11-10 02:44:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971086263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:09,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462923080] [2024-11-10 02:44:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:09,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:09,123 INFO L87 Difference]: Start difference. First operand 4522 states and 6770 transitions. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:10,570 INFO L93 Difference]: Finished difference Result 8888 states and 13307 transitions. [2024-11-10 02:44:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2024-11-10 02:44:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:10,576 INFO L225 Difference]: With dead ends: 8888 [2024-11-10 02:44:10,576 INFO L226 Difference]: Without dead ends: 4524 [2024-11-10 02:44:10,580 INFO L431 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 [2024-11-10 02:44:10,581 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:10,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 02:44:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2024-11-10 02:44:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4524. [2024-11-10 02:44:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4523 states have (on average 1.4972363475569312) internal successors, (6772), 4523 states have internal predecessors, (6772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6772 transitions. [2024-11-10 02:44:10,631 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6772 transitions. Word has length 340 [2024-11-10 02:44:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:10,631 INFO L471 AbstractCegarLoop]: Abstraction has 4524 states and 6772 transitions. [2024-11-10 02:44:10,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6772 transitions. [2024-11-10 02:44:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-10 02:44:10,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:10,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:10,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 02:44:10,633 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:10,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:10,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1000584323, now seen corresponding path program 1 times [2024-11-10 02:44:10,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:10,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009772270] [2024-11-10 02:44:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:10,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:11,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:11,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:11,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009772270] [2024-11-10 02:44:11,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009772270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:11,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:11,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:11,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286645168] [2024-11-10 02:44:11,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:11,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:11,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:11,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:11,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:11,003 INFO L87 Difference]: Start difference. First operand 4524 states and 6772 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:12,496 INFO L93 Difference]: Finished difference Result 8892 states and 13311 transitions. [2024-11-10 02:44:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:12,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 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 341 [2024-11-10 02:44:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:12,501 INFO L225 Difference]: With dead ends: 8892 [2024-11-10 02:44:12,501 INFO L226 Difference]: Without dead ends: 4526 [2024-11-10 02:44:12,507 INFO L431 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 [2024-11-10 02:44:12,507 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16805 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:12,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16805 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 02:44:12,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2024-11-10 02:44:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4526. [2024-11-10 02:44:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4525 states have (on average 1.4970165745856354) internal successors, (6774), 4525 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 6774 transitions. [2024-11-10 02:44:12,550 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 6774 transitions. Word has length 341 [2024-11-10 02:44:12,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:12,551 INFO L471 AbstractCegarLoop]: Abstraction has 4526 states and 6774 transitions. [2024-11-10 02:44:12,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 6774 transitions. [2024-11-10 02:44:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-10 02:44:12,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:12,552 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:12,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 02:44:12,553 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:12,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1198699325, now seen corresponding path program 1 times [2024-11-10 02:44:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005209740] [2024-11-10 02:44:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:12,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:12,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:12,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005209740] [2024-11-10 02:44:12,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005209740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:12,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:12,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:44:12,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431323859] [2024-11-10 02:44:12,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:12,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:44:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:44:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:44:12,878 INFO L87 Difference]: Start difference. First operand 4526 states and 6774 transitions. Second operand has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:14,370 INFO L93 Difference]: Finished difference Result 8902 states and 13323 transitions. [2024-11-10 02:44:14,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:44:14,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 0 states have call successors, (0), 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 342 [2024-11-10 02:44:14,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:14,375 INFO L225 Difference]: With dead ends: 8902 [2024-11-10 02:44:14,375 INFO L226 Difference]: Without dead ends: 4534 [2024-11-10 02:44:14,378 INFO L431 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 [2024-11-10 02:44:14,378 INFO L432 NwaCegarLoop]: 5604 mSDtfsCounter, 4 mSDsluCounter, 11202 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16806 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:14,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16806 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 02:44:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2024-11-10 02:44:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 4530. [2024-11-10 02:44:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 4529 states have (on average 1.4970192095385295) internal successors, (6780), 4529 states have internal predecessors, (6780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 6780 transitions. [2024-11-10 02:44:14,419 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 6780 transitions. Word has length 342 [2024-11-10 02:44:14,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:14,420 INFO L471 AbstractCegarLoop]: Abstraction has 4530 states and 6780 transitions. [2024-11-10 02:44:14,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 6780 transitions. [2024-11-10 02:44:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-10 02:44:14,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:14,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:14,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 02:44:14,422 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:14,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:14,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1562562120, now seen corresponding path program 1 times [2024-11-10 02:44:14,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:14,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15775334] [2024-11-10 02:44:14,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:14,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15775334] [2024-11-10 02:44:14,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15775334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:14,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:14,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:14,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115665653] [2024-11-10 02:44:14,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:14,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:14,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:14,713 INFO L87 Difference]: Start difference. First operand 4530 states and 6780 transitions. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:16,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:16,265 INFO L93 Difference]: Finished difference Result 8904 states and 13327 transitions. [2024-11-10 02:44:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:16,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 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 343 [2024-11-10 02:44:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:16,270 INFO L225 Difference]: With dead ends: 8904 [2024-11-10 02:44:16,270 INFO L226 Difference]: Without dead ends: 4532 [2024-11-10 02:44:16,273 INFO L431 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 [2024-11-10 02:44:16,273 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 0 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:16,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:44:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2024-11-10 02:44:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2024-11-10 02:44:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4531 states have (on average 1.4967998234385345) internal successors, (6782), 4531 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6782 transitions. [2024-11-10 02:44:16,330 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6782 transitions. Word has length 343 [2024-11-10 02:44:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:16,330 INFO L471 AbstractCegarLoop]: Abstraction has 4532 states and 6782 transitions. [2024-11-10 02:44:16,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6782 transitions. [2024-11-10 02:44:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-10 02:44:16,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:16,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:16,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 02:44:16,335 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:16,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash 612017794, now seen corresponding path program 1 times [2024-11-10 02:44:16,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:16,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159795724] [2024-11-10 02:44:16,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:16,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:16,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:16,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159795724] [2024-11-10 02:44:16,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159795724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:16,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:16,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:44:16,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681893824] [2024-11-10 02:44:16,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:16,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:44:16,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:16,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:44:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:44:16,614 INFO L87 Difference]: Start difference. First operand 4532 states and 6782 transitions. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:18,154 INFO L93 Difference]: Finished difference Result 8912 states and 13337 transitions. [2024-11-10 02:44:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:44:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 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 344 [2024-11-10 02:44:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:18,158 INFO L225 Difference]: With dead ends: 8912 [2024-11-10 02:44:18,159 INFO L226 Difference]: Without dead ends: 4538 [2024-11-10 02:44:18,162 INFO L431 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 [2024-11-10 02:44:18,162 INFO L432 NwaCegarLoop]: 5606 mSDtfsCounter, 4 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16810 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:18,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16810 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 02:44:18,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-11-10 02:44:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4538. [2024-11-10 02:44:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 4537 states have (on average 1.4965836455807802) internal successors, (6790), 4537 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6790 transitions. [2024-11-10 02:44:18,207 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6790 transitions. Word has length 344 [2024-11-10 02:44:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:18,207 INFO L471 AbstractCegarLoop]: Abstraction has 4538 states and 6790 transitions. [2024-11-10 02:44:18,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6790 transitions. [2024-11-10 02:44:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-10 02:44:18,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:18,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:18,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 02:44:18,210 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:18,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1613732818, now seen corresponding path program 1 times [2024-11-10 02:44:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:18,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256274742] [2024-11-10 02:44:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:18,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:18,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:18,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:18,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256274742] [2024-11-10 02:44:18,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256274742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:18,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:44:18,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:44:18,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099341566] [2024-11-10 02:44:18,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:18,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:44:18,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:44:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:44:18,550 INFO L87 Difference]: Start difference. First operand 4538 states and 6790 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:21,014 INFO L93 Difference]: Finished difference Result 13175 states and 19716 transitions. [2024-11-10 02:44:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:44:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2024-11-10 02:44:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:21,025 INFO L225 Difference]: With dead ends: 13175 [2024-11-10 02:44:21,025 INFO L226 Difference]: Without dead ends: 8795 [2024-11-10 02:44:21,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:44:21,031 INFO L432 NwaCegarLoop]: 5604 mSDtfsCounter, 6320 mSDsluCounter, 16611 mSDsCounter, 0 mSdLazyCounter, 4462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6320 SdHoareTripleChecker+Valid, 22215 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:21,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6320 Valid, 22215 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4462 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-10 02:44:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-11-10 02:44:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 4952. [2024-11-10 02:44:21,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4952 states, 4951 states have (on average 1.496667339931327) internal successors, (7410), 4951 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 7410 transitions. [2024-11-10 02:44:21,108 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 7410 transitions. Word has length 345 [2024-11-10 02:44:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:21,108 INFO L471 AbstractCegarLoop]: Abstraction has 4952 states and 7410 transitions. [2024-11-10 02:44:21,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 7410 transitions. [2024-11-10 02:44:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2511 [2024-11-10 02:44:21,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:21,157 INFO L215 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:44:21,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 02:44:21,157 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:21,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:21,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1814339430, now seen corresponding path program 1 times [2024-11-10 02:44:21,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:21,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069427321] [2024-11-10 02:44:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 94 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:44:27,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:44:27,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069427321] [2024-11-10 02:44:27,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069427321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:44:27,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662011222] [2024-11-10 02:44:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:27,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:44:27,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:44:27,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 02:44:27,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 02:44:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:44:30,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 10271 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 02:44:30,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:44:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-10 02:44:30,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:44:30,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662011222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:44:30,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:44:30,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-10 02:44:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014534188] [2024-11-10 02:44:30,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:44:30,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:44:30,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:44:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:44:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-10 02:44:30,374 INFO L87 Difference]: Start difference. First operand 4952 states and 7410 transitions. Second operand has 6 states, 6 states have (on average 384.1666666666667) internal successors, (2305), 6 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:32,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:44:32,339 INFO L93 Difference]: Finished difference Result 9336 states and 13969 transitions. [2024-11-10 02:44:32,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:44:32,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 384.1666666666667) internal successors, (2305), 6 states have internal predecessors, (2305), 0 states have call successors, (0), 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 2510 [2024-11-10 02:44:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:44:32,347 INFO L225 Difference]: With dead ends: 9336 [2024-11-10 02:44:32,347 INFO L226 Difference]: Without dead ends: 4956 [2024-11-10 02:44:32,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2517 GetRequests, 2508 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-10 02:44:32,353 INFO L432 NwaCegarLoop]: 5604 mSDtfsCounter, 0 mSDsluCounter, 22400 mSDsCounter, 0 mSdLazyCounter, 5634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28004 SdHoareTripleChecker+Invalid, 5634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 02:44:32,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28004 Invalid, 5634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5634 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 02:44:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states. [2024-11-10 02:44:32,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 4952. [2024-11-10 02:44:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4952 states, 4951 states have (on average 1.496667339931327) internal successors, (7410), 4951 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:32,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 7410 transitions. [2024-11-10 02:44:32,397 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 7410 transitions. Word has length 2510 [2024-11-10 02:44:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:44:32,399 INFO L471 AbstractCegarLoop]: Abstraction has 4952 states and 7410 transitions. [2024-11-10 02:44:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 384.1666666666667) internal successors, (2305), 6 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:44:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 7410 transitions. [2024-11-10 02:44:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2512 [2024-11-10 02:44:32,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:44:32,483 INFO L215 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] [2024-11-10 02:44:32,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 02:44:32,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:44:32,684 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:44:32,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:44:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2122189137, now seen corresponding path program 1 times [2024-11-10 02:44:32,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:44:32,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600217559] [2024-11-10 02:44:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:44:32,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:44:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat