./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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.circular_pointer_top_w32_d16_e0.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 fc3dd6a87fcbbda92d2ef86eac2f1110715a91bf4cd8be375753a9611c0b48d5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 23:50:10,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 23:50:10,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-11 23:50:10,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 23:50:10,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 23:50:10,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 23:50:10,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 23:50:10,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 23:50:10,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 23:50:10,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 23:50:10,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 23:50:10,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 23:50:10,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 23:50:10,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 23:50:10,857 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 23:50:10,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 23:50:10,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 23:50:10,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 23:50:10,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 23:50:10,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 23:50:10,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 23:50:10,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 23:50:10,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 23:50:10,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 23:50:10,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 23:50:10,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 23:50:10,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 23:50:10,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 23:50:10,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 23:50:10,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:50:10,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 23:50:10,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 23:50:10,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 23:50:10,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 23:50:10,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc3dd6a87fcbbda92d2ef86eac2f1110715a91bf4cd8be375753a9611c0b48d5 [2024-11-11 23:50:11,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 23:50:11,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 23:50:11,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 23:50:11,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 23:50:11,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 23:50:11,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-11 23:50:12,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 23:50:12,564 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 23:50:12,566 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-11 23:50:12,577 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad79a8b7b/5331f16baebf4bf98c44d72e4cedcc67/FLAG2450a494f [2024-11-11 23:50:12,591 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad79a8b7b/5331f16baebf4bf98c44d72e4cedcc67 [2024-11-11 23:50:12,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 23:50:12,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 23:50:12,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 23:50:12,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 23:50:12,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 23:50:12,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:12" (1/1) ... [2024-11-11 23:50:12,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4f20e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12, skipping insertion in model container [2024-11-11 23:50:12,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:12" (1/1) ... [2024-11-11 23:50:12,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 23:50:12,792 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.circular_pointer_top_w32_d16_e0.c[1280,1293] [2024-11-11 23:50:12,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:50:12,975 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 23:50:12,983 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.circular_pointer_top_w32_d16_e0.c[1280,1293] [2024-11-11 23:50:13,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:50:13,077 INFO L204 MainTranslator]: Completed translation [2024-11-11 23:50:13,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13 WrapperNode [2024-11-11 23:50:13,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 23:50:13,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 23:50:13,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 23:50:13,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 23:50:13,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,236 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-11-11 23:50:13,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 23:50:13,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 23:50:13,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 23:50:13,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 23:50:13,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,398 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]. [2024-11-11 23:50:13,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 23:50:13,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 23:50:13,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 23:50:13,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 23:50:13,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (1/1) ... [2024-11-11 23:50:13,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:50:13,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:50:13,603 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) [2024-11-11 23:50:13,606 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 [2024-11-11 23:50:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 23:50:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-11 23:50:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-11 23:50:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 23:50:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 23:50:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 23:50:13,815 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 23:50:13,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 23:50:15,371 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-11 23:50:15,371 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 23:50:15,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 23:50:15,396 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 23:50:15,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:15 BoogieIcfgContainer [2024-11-11 23:50:15,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 23:50:15,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 23:50:15,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 23:50:15,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 23:50:15,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:50:12" (1/3) ... [2024-11-11 23:50:15,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5204a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:50:15, skipping insertion in model container [2024-11-11 23:50:15,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:13" (2/3) ... [2024-11-11 23:50:15,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5204a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:50:15, skipping insertion in model container [2024-11-11 23:50:15,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:15" (3/3) ... [2024-11-11 23:50:15,403 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-11 23:50:15,415 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 23:50:15,415 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 23:50:15,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 23:50:15,487 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;@67fba172, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 23:50:15,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 23:50:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-11 23:50:15,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:15,506 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:15,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:15,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:15,511 INFO L85 PathProgramCache]: Analyzing trace with hash -570647152, now seen corresponding path program 1 times [2024-11-11 23:50:15,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:15,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123432916] [2024-11-11 23:50:15,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:15,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:15,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:15,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:15,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123432916] [2024-11-11 23:50:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123432916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 23:50:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000206501] [2024-11-11 23:50:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:15,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 23:50:15,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 23:50:15,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 23:50:15,947 INFO L87 Difference]: Start difference. First operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:15,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:15,988 INFO L93 Difference]: Finished difference Result 999 states and 1493 transitions. [2024-11-11 23:50:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 23:50:15,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 149 [2024-11-11 23:50:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:16,005 INFO L225 Difference]: With dead ends: 999 [2024-11-11 23:50:16,007 INFO L226 Difference]: Without dead ends: 549 [2024-11-11 23:50:16,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 23:50:16,014 INFO L435 NwaCegarLoop]: 817 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:16,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-11 23:50:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-11 23:50:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4908088235294117) internal successors, (811), 544 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 817 transitions. [2024-11-11 23:50:16,076 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 817 transitions. Word has length 149 [2024-11-11 23:50:16,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:16,077 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 817 transitions. [2024-11-11 23:50:16,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:16,078 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 817 transitions. [2024-11-11 23:50:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-11 23:50:16,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:16,086 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:16,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 23:50:16,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:16,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:16,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1154250, now seen corresponding path program 1 times [2024-11-11 23:50:16,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:16,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435381756] [2024-11-11 23:50:16,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:16,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:16,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:16,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435381756] [2024-11-11 23:50:16,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435381756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:16,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839128778] [2024-11-11 23:50:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:16,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:16,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:16,853 INFO L87 Difference]: Start difference. First operand 549 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:16,894 INFO L93 Difference]: Finished difference Result 553 states and 821 transitions. [2024-11-11 23:50:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 149 [2024-11-11 23:50:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:16,898 INFO L225 Difference]: With dead ends: 553 [2024-11-11 23:50:16,898 INFO L226 Difference]: Without dead ends: 551 [2024-11-11 23:50:16,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:16,899 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:16,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-11 23:50:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-11 23:50:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.489010989010989) internal successors, (813), 546 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 819 transitions. [2024-11-11 23:50:16,918 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 819 transitions. Word has length 149 [2024-11-11 23:50:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:16,919 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 819 transitions. [2024-11-11 23:50:16,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 819 transitions. [2024-11-11 23:50:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-11 23:50:16,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:16,921 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:16,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 23:50:16,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:16,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash 37477728, now seen corresponding path program 1 times [2024-11-11 23:50:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:16,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002834439] [2024-11-11 23:50:16,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:16,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:17,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:17,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:17,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:17,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002834439] [2024-11-11 23:50:17,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002834439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:17,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:17,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:17,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850602982] [2024-11-11 23:50:17,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:17,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:17,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:17,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:17,355 INFO L87 Difference]: Start difference. First operand 551 states and 819 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:17,723 INFO L93 Difference]: Finished difference Result 1371 states and 2041 transitions. [2024-11-11 23:50:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:50:17,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-11-11 23:50:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:17,726 INFO L225 Difference]: With dead ends: 1371 [2024-11-11 23:50:17,727 INFO L226 Difference]: Without dead ends: 551 [2024-11-11 23:50:17,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:50:17,729 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 1618 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:17,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2351 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 23:50:17,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-11 23:50:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-11 23:50:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4871794871794872) internal successors, (812), 546 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:17,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 818 transitions. [2024-11-11 23:50:17,741 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 818 transitions. Word has length 150 [2024-11-11 23:50:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:17,742 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 818 transitions. [2024-11-11 23:50:17,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 818 transitions. [2024-11-11 23:50:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 23:50:17,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:17,744 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:17,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 23:50:17,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:17,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1675368076, now seen corresponding path program 1 times [2024-11-11 23:50:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98010241] [2024-11-11 23:50:17,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:18,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98010241] [2024-11-11 23:50:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98010241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:18,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949572187] [2024-11-11 23:50:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:18,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:18,094 INFO L87 Difference]: Start difference. First operand 551 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:18,120 INFO L93 Difference]: Finished difference Result 1002 states and 1487 transitions. [2024-11-11 23:50:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:18,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 151 [2024-11-11 23:50:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:18,123 INFO L225 Difference]: With dead ends: 1002 [2024-11-11 23:50:18,123 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:18,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:18,124 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 0 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:18,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:18,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4854014598540146) internal successors, (814), 548 states have internal predecessors, (814), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 820 transitions. [2024-11-11 23:50:18,131 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 820 transitions. Word has length 151 [2024-11-11 23:50:18,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:18,132 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 820 transitions. [2024-11-11 23:50:18,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:18,132 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 820 transitions. [2024-11-11 23:50:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-11 23:50:18,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:18,133 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:18,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 23:50:18,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:18,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:18,134 INFO L85 PathProgramCache]: Analyzing trace with hash -701162313, now seen corresponding path program 1 times [2024-11-11 23:50:18,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:18,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634920443] [2024-11-11 23:50:18,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:18,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634920443] [2024-11-11 23:50:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634920443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:18,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194950504] [2024-11-11 23:50:18,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:18,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:18,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:18,595 INFO L87 Difference]: Start difference. First operand 553 states and 820 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:18,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:18,746 INFO L93 Difference]: Finished difference Result 1004 states and 1488 transitions. [2024-11-11 23:50:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:18,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 152 [2024-11-11 23:50:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:18,748 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:18,748 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:18,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:18,749 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 694 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:18,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1470 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:18,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4835766423357664) internal successors, (813), 548 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 819 transitions. [2024-11-11 23:50:18,760 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 819 transitions. Word has length 152 [2024-11-11 23:50:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:18,760 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 819 transitions. [2024-11-11 23:50:18,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 819 transitions. [2024-11-11 23:50:18,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-11 23:50:18,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:18,764 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:18,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 23:50:18,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:18,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1766175453, now seen corresponding path program 1 times [2024-11-11 23:50:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:18,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278993681] [2024-11-11 23:50:18,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:18,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:19,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:19,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278993681] [2024-11-11 23:50:19,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278993681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:19,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781513936] [2024-11-11 23:50:19,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:19,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:19,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:19,091 INFO L87 Difference]: Start difference. First operand 553 states and 819 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:19,216 INFO L93 Difference]: Finished difference Result 1010 states and 1494 transitions. [2024-11-11 23:50:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 23:50:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-11-11 23:50:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:19,218 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:19,218 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:19,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:50:19,221 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 705 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:19,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 2350 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:19,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4817518248175183) internal successors, (812), 548 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 818 transitions. [2024-11-11 23:50:19,234 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 818 transitions. Word has length 153 [2024-11-11 23:50:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:19,234 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 818 transitions. [2024-11-11 23:50:19,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 818 transitions. [2024-11-11 23:50:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-11 23:50:19,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:19,236 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:19,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 23:50:19,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:19,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash -855293822, now seen corresponding path program 1 times [2024-11-11 23:50:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:19,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378857170] [2024-11-11 23:50:19,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:19,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:19,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378857170] [2024-11-11 23:50:19,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378857170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:19,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:19,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:19,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077136702] [2024-11-11 23:50:19,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:19,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:19,591 INFO L87 Difference]: Start difference. First operand 553 states and 818 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:19,736 INFO L93 Difference]: Finished difference Result 1004 states and 1484 transitions. [2024-11-11 23:50:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-11-11 23:50:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:19,738 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:19,739 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:19,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:19,740 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 802 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:19,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1477 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:19,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.47992700729927) internal successors, (811), 548 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 817 transitions. [2024-11-11 23:50:19,752 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 817 transitions. Word has length 154 [2024-11-11 23:50:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:19,753 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 817 transitions. [2024-11-11 23:50:19,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 817 transitions. [2024-11-11 23:50:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-11 23:50:19,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:19,754 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:19,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 23:50:19,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:19,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:19,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2129133724, now seen corresponding path program 1 times [2024-11-11 23:50:19,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:19,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801734662] [2024-11-11 23:50:19,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:19,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:20,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:20,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801734662] [2024-11-11 23:50:20,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801734662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:20,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:20,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:20,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647101123] [2024-11-11 23:50:20,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:20,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:20,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:20,084 INFO L87 Difference]: Start difference. First operand 553 states and 817 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:20,221 INFO L93 Difference]: Finished difference Result 1004 states and 1482 transitions. [2024-11-11 23:50:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:20,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-11-11 23:50:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:20,224 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:20,224 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:20,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:20,227 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1487 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:20,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1470 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4781021897810218) internal successors, (810), 548 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 816 transitions. [2024-11-11 23:50:20,238 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 816 transitions. Word has length 155 [2024-11-11 23:50:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:20,238 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 816 transitions. [2024-11-11 23:50:20,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 816 transitions. [2024-11-11 23:50:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 23:50:20,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:20,240 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:20,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 23:50:20,241 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:20,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash 713065065, now seen corresponding path program 1 times [2024-11-11 23:50:20,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:20,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583516087] [2024-11-11 23:50:20,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:20,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:20,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:20,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583516087] [2024-11-11 23:50:20,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583516087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:20,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:20,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858025245] [2024-11-11 23:50:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:20,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:20,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:20,548 INFO L87 Difference]: Start difference. First operand 553 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:20,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:20,677 INFO L93 Difference]: Finished difference Result 1004 states and 1480 transitions. [2024-11-11 23:50:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:20,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-11-11 23:50:20,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:20,679 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:20,679 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:20,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:20,680 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1473 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:20,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1470 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4762773722627738) internal successors, (809), 548 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:20,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 815 transitions. [2024-11-11 23:50:20,689 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 815 transitions. Word has length 156 [2024-11-11 23:50:20,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:20,689 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 815 transitions. [2024-11-11 23:50:20,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 815 transitions. [2024-11-11 23:50:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-11 23:50:20,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:20,690 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:20,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 23:50:20,690 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:20,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:20,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1875276132, now seen corresponding path program 1 times [2024-11-11 23:50:20,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:20,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002944079] [2024-11-11 23:50:20,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:20,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:20,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:20,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002944079] [2024-11-11 23:50:20,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002944079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:20,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:20,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:20,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173272813] [2024-11-11 23:50:20,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:20,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:20,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:20,986 INFO L87 Difference]: Start difference. First operand 553 states and 815 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:21,115 INFO L93 Difference]: Finished difference Result 1004 states and 1478 transitions. [2024-11-11 23:50:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-11-11 23:50:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:21,117 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:21,117 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:21,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:21,118 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 787 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:21,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1477 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:21,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4744525547445255) internal successors, (808), 548 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 814 transitions. [2024-11-11 23:50:21,126 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 814 transitions. Word has length 157 [2024-11-11 23:50:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:21,126 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 814 transitions. [2024-11-11 23:50:21,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 814 transitions. [2024-11-11 23:50:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-11 23:50:21,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:21,127 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:21,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 23:50:21,128 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:21,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash 459471362, now seen corresponding path program 1 times [2024-11-11 23:50:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:21,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731129402] [2024-11-11 23:50:21,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:21,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:21,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731129402] [2024-11-11 23:50:21,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731129402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:21,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:21,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:21,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967798268] [2024-11-11 23:50:21,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:21,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:21,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:21,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:21,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:21,405 INFO L87 Difference]: Start difference. First operand 553 states and 814 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:21,531 INFO L93 Difference]: Finished difference Result 1004 states and 1476 transitions. [2024-11-11 23:50:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:21,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 158 [2024-11-11 23:50:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:21,533 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:21,534 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:21,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:21,535 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1457 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:21,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1470 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4726277372262773) internal successors, (807), 548 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 813 transitions. [2024-11-11 23:50:21,543 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 813 transitions. Word has length 158 [2024-11-11 23:50:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:21,543 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 813 transitions. [2024-11-11 23:50:21,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 813 transitions. [2024-11-11 23:50:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-11 23:50:21,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:21,544 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:21,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 23:50:21,544 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:21,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash 436656029, now seen corresponding path program 1 times [2024-11-11 23:50:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:21,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745773625] [2024-11-11 23:50:21,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:21,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745773625] [2024-11-11 23:50:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745773625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:21,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:21,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:21,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72946189] [2024-11-11 23:50:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:21,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:21,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:21,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:21,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:21,842 INFO L87 Difference]: Start difference. First operand 553 states and 813 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:21,972 INFO L93 Difference]: Finished difference Result 1004 states and 1474 transitions. [2024-11-11 23:50:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-11-11 23:50:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:21,975 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:21,975 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:21,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:21,976 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1449 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:21,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 1470 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4708029197080292) internal successors, (806), 548 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 812 transitions. [2024-11-11 23:50:21,986 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 812 transitions. Word has length 159 [2024-11-11 23:50:21,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:21,986 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 812 transitions. [2024-11-11 23:50:21,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 812 transitions. [2024-11-11 23:50:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-11 23:50:21,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:21,988 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:21,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 23:50:21,988 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:21,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash -519943653, now seen corresponding path program 1 times [2024-11-11 23:50:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:21,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229022253] [2024-11-11 23:50:21,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:22,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:22,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229022253] [2024-11-11 23:50:22,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229022253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:22,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:22,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:22,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86426638] [2024-11-11 23:50:22,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:22,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:22,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:22,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:22,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:22,449 INFO L87 Difference]: Start difference. First operand 553 states and 812 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:22,551 INFO L93 Difference]: Finished difference Result 1004 states and 1472 transitions. [2024-11-11 23:50:22,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-11-11 23:50:22,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:22,553 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:22,553 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:22,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:22,554 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 700 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:22,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1534 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:22,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.468978102189781) internal successors, (805), 548 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:22,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 811 transitions. [2024-11-11 23:50:22,565 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 811 transitions. Word has length 160 [2024-11-11 23:50:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:22,566 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 811 transitions. [2024-11-11 23:50:22,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:22,566 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 811 transitions. [2024-11-11 23:50:22,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-11 23:50:22,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:22,567 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:22,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 23:50:22,568 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:22,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash 576386674, now seen corresponding path program 1 times [2024-11-11 23:50:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:22,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527135933] [2024-11-11 23:50:22,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:22,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:22,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527135933] [2024-11-11 23:50:22,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527135933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:22,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:22,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062955801] [2024-11-11 23:50:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:22,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:22,884 INFO L87 Difference]: Start difference. First operand 553 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:22,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:22,966 INFO L93 Difference]: Finished difference Result 1004 states and 1470 transitions. [2024-11-11 23:50:22,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:22,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-11-11 23:50:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:22,968 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:22,968 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:22,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:22,969 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 1489 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:22,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1534 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.467153284671533) internal successors, (804), 548 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 810 transitions. [2024-11-11 23:50:22,977 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 810 transitions. Word has length 161 [2024-11-11 23:50:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:22,977 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 810 transitions. [2024-11-11 23:50:22,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:22,978 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 810 transitions. [2024-11-11 23:50:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-11 23:50:22,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:22,979 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:22,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 23:50:22,979 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1152750132, now seen corresponding path program 1 times [2024-11-11 23:50:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:22,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896051937] [2024-11-11 23:50:22,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:23,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896051937] [2024-11-11 23:50:23,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896051937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071714431] [2024-11-11 23:50:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:23,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:23,244 INFO L87 Difference]: Start difference. First operand 553 states and 810 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:23,330 INFO L93 Difference]: Finished difference Result 1004 states and 1468 transitions. [2024-11-11 23:50:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-11-11 23:50:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:23,332 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:23,333 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:23,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:23,334 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 1481 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:23,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1534 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:23,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4653284671532847) internal successors, (803), 548 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 809 transitions. [2024-11-11 23:50:23,343 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 809 transitions. Word has length 162 [2024-11-11 23:50:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:23,344 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 809 transitions. [2024-11-11 23:50:23,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 809 transitions. [2024-11-11 23:50:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-11 23:50:23,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:23,345 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:23,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 23:50:23,345 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:23,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:23,346 INFO L85 PathProgramCache]: Analyzing trace with hash 987506219, now seen corresponding path program 1 times [2024-11-11 23:50:23,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:23,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457566771] [2024-11-11 23:50:23,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:23,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:23,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457566771] [2024-11-11 23:50:23,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457566771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:23,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:23,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:23,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897818821] [2024-11-11 23:50:23,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:23,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:23,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:23,642 INFO L87 Difference]: Start difference. First operand 553 states and 809 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:23,722 INFO L93 Difference]: Finished difference Result 1004 states and 1466 transitions. [2024-11-11 23:50:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-11-11 23:50:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:23,725 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:23,725 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:23,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:23,726 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 787 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:23,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1541 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4635036496350364) internal successors, (802), 548 states have internal predecessors, (802), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 808 transitions. [2024-11-11 23:50:23,735 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 808 transitions. Word has length 163 [2024-11-11 23:50:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:23,736 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 808 transitions. [2024-11-11 23:50:23,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 808 transitions. [2024-11-11 23:50:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-11 23:50:23,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:23,737 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:23,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 23:50:23,737 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:23,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2004832973, now seen corresponding path program 1 times [2024-11-11 23:50:23,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:23,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941508133] [2024-11-11 23:50:23,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:23,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941508133] [2024-11-11 23:50:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941508133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:24,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372823927] [2024-11-11 23:50:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:24,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:24,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:24,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:24,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:24,079 INFO L87 Difference]: Start difference. First operand 553 states and 808 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:24,134 INFO L93 Difference]: Finished difference Result 1004 states and 1464 transitions. [2024-11-11 23:50:24,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:24,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 164 [2024-11-11 23:50:24,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:24,136 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:24,136 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:24,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:24,137 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 699 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:24,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1566 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:24,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4598540145985401) internal successors, (800), 548 states have internal predecessors, (800), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 806 transitions. [2024-11-11 23:50:24,145 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 806 transitions. Word has length 164 [2024-11-11 23:50:24,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:24,146 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 806 transitions. [2024-11-11 23:50:24,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:24,146 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 806 transitions. [2024-11-11 23:50:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-11 23:50:24,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:24,147 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:24,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 23:50:24,147 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:24,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1458968950, now seen corresponding path program 1 times [2024-11-11 23:50:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:24,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678559241] [2024-11-11 23:50:24,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:24,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678559241] [2024-11-11 23:50:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678559241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194766155] [2024-11-11 23:50:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:24,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:24,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:24,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:24,428 INFO L87 Difference]: Start difference. First operand 553 states and 806 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:24,478 INFO L93 Difference]: Finished difference Result 1004 states and 1460 transitions. [2024-11-11 23:50:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 166 [2024-11-11 23:50:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:24,481 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:24,481 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:24,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:24,482 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 1481 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:24,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1566 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4580291970802919) internal successors, (799), 548 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-11 23:50:24,491 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-11 23:50:24,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:24,491 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-11 23:50:24,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-11 23:50:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 23:50:24,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:24,493 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:24,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 23:50:24,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:24,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2035593486, now seen corresponding path program 1 times [2024-11-11 23:50:24,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:24,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089179788] [2024-11-11 23:50:24,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 23:50:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 23:50:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:24,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089179788] [2024-11-11 23:50:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089179788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:24,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:24,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:24,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322400111] [2024-11-11 23:50:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:24,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:24,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:24,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:24,852 INFO L87 Difference]: Start difference. First operand 553 states and 805 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:24,906 INFO L93 Difference]: Finished difference Result 1004 states and 1458 transitions. [2024-11-11 23:50:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-11-11 23:50:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:24,908 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:24,908 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:24,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:24,909 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 734 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:24,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1572 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4562043795620438) internal successors, (798), 548 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-11 23:50:24,918 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-11 23:50:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:24,918 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-11 23:50:24,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-11 23:50:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-11 23:50:24,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:24,920 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:24,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 23:50:24,920 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:24,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash 116921244, now seen corresponding path program 1 times [2024-11-11 23:50:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:24,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782585688] [2024-11-11 23:50:24,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:24,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:25,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 23:50:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:25,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 23:50:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:25,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782585688] [2024-11-11 23:50:25,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782585688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:25,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:25,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:25,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022984234] [2024-11-11 23:50:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:25,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:25,322 INFO L87 Difference]: Start difference. First operand 553 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:25,375 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-11 23:50:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:25,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 168 [2024-11-11 23:50:25,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:25,377 INFO L225 Difference]: With dead ends: 1004 [2024-11-11 23:50:25,377 INFO L226 Difference]: Without dead ends: 553 [2024-11-11 23:50:25,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:25,378 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 732 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:25,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1572 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-11 23:50:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-11 23:50:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4543795620437956) internal successors, (797), 548 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:25,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-11 23:50:25,387 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-11 23:50:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:25,387 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-11 23:50:25,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 23:50:25,387 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-11 23:50:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-11 23:50:25,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:25,389 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:25,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 23:50:25,389 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:25,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:25,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2032439125, now seen corresponding path program 1 times [2024-11-11 23:50:25,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:25,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684312522] [2024-11-11 23:50:25,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:25,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:26,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:26,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684312522] [2024-11-11 23:50:26,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684312522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:26,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:26,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458427667] [2024-11-11 23:50:26,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:26,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:26,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:26,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:26,061 INFO L87 Difference]: Start difference. First operand 553 states and 803 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:26,269 INFO L93 Difference]: Finished difference Result 1010 states and 1462 transitions. [2024-11-11 23:50:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 23:50:26,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 169 [2024-11-11 23:50:26,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:26,272 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:26,272 INFO L226 Difference]: Without dead ends: 557 [2024-11-11 23:50:26,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:26,274 INFO L435 NwaCegarLoop]: 793 mSDtfsCounter, 2 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:26,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2979 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 23:50:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-11 23:50:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-11 23:50:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4527272727272726) internal successors, (799), 550 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-11 23:50:26,293 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 169 [2024-11-11 23:50:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:26,293 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-11 23:50:26,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-11 23:50:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-11 23:50:26,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:26,296 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:26,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 23:50:26,296 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:26,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1239712212, now seen corresponding path program 1 times [2024-11-11 23:50:26,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:26,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520531132] [2024-11-11 23:50:26,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:26,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:26,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:26,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520531132] [2024-11-11 23:50:26,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520531132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:26,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:26,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:26,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945171857] [2024-11-11 23:50:26,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:26,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:26,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:26,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:26,709 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:26,790 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-11 23:50:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:26,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-11-11 23:50:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:26,792 INFO L225 Difference]: With dead ends: 1008 [2024-11-11 23:50:26,792 INFO L226 Difference]: Without dead ends: 555 [2024-11-11 23:50:26,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:26,793 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 684 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:26,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1524 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-11 23:50:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-11 23:50:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.450909090909091) internal successors, (798), 550 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2024-11-11 23:50:26,803 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 170 [2024-11-11 23:50:26,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:26,803 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2024-11-11 23:50:26,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2024-11-11 23:50:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-11 23:50:26,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:26,804 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:26,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 23:50:26,805 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:26,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1094471960, now seen corresponding path program 1 times [2024-11-11 23:50:26,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:26,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150078455] [2024-11-11 23:50:26,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:26,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:27,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:27,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150078455] [2024-11-11 23:50:27,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150078455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:27,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:27,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:27,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595341409] [2024-11-11 23:50:27,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:27,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:27,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:27,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:27,226 INFO L87 Difference]: Start difference. First operand 555 states and 804 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:27,316 INFO L93 Difference]: Finished difference Result 1008 states and 1456 transitions. [2024-11-11 23:50:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-11-11 23:50:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:27,319 INFO L225 Difference]: With dead ends: 1008 [2024-11-11 23:50:27,319 INFO L226 Difference]: Without dead ends: 555 [2024-11-11 23:50:27,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:27,320 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 682 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:27,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1531 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:27,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-11 23:50:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-11 23:50:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.449090909090909) internal successors, (797), 550 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 803 transitions. [2024-11-11 23:50:27,329 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 803 transitions. Word has length 171 [2024-11-11 23:50:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:27,329 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 803 transitions. [2024-11-11 23:50:27,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 803 transitions. [2024-11-11 23:50:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-11 23:50:27,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:27,331 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:27,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 23:50:27,331 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:27,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash 801073965, now seen corresponding path program 1 times [2024-11-11 23:50:27,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:27,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795826537] [2024-11-11 23:50:27,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:27,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:27,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:27,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795826537] [2024-11-11 23:50:27,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795826537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:27,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:27,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102987837] [2024-11-11 23:50:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:27,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:27,694 INFO L87 Difference]: Start difference. First operand 555 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:27,781 INFO L93 Difference]: Finished difference Result 1008 states and 1454 transitions. [2024-11-11 23:50:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:27,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-11-11 23:50:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:27,783 INFO L225 Difference]: With dead ends: 1008 [2024-11-11 23:50:27,784 INFO L226 Difference]: Without dead ends: 555 [2024-11-11 23:50:27,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:27,785 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 681 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:27,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-11 23:50:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-11 23:50:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-11 23:50:27,794 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-11 23:50:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:27,794 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-11 23:50:27,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-11 23:50:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-11 23:50:27,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:27,796 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:27,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 23:50:27,796 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:27,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1945385383, now seen corresponding path program 1 times [2024-11-11 23:50:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:27,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288502961] [2024-11-11 23:50:27,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:28,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:28,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:28,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:28,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:28,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288502961] [2024-11-11 23:50:28,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288502961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:28,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:28,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:28,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271529201] [2024-11-11 23:50:28,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:28,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:28,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:28,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:28,494 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:28,825 INFO L93 Difference]: Finished difference Result 1010 states and 1455 transitions. [2024-11-11 23:50:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 23:50:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-11 23:50:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:28,828 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:28,828 INFO L226 Difference]: Without dead ends: 557 [2024-11-11 23:50:28,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:28,829 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 697 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:28,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1797 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 23:50:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-11 23:50:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2024-11-11 23:50:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4464609800362977) internal successors, (797), 551 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 803 transitions. [2024-11-11 23:50:28,842 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 803 transitions. Word has length 173 [2024-11-11 23:50:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:28,842 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 803 transitions. [2024-11-11 23:50:28,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 803 transitions. [2024-11-11 23:50:28,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-11 23:50:28,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:28,846 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:28,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 23:50:28,846 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:28,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1981593280, now seen corresponding path program 1 times [2024-11-11 23:50:28,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:28,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514696599] [2024-11-11 23:50:28,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:28,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:29,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514696599] [2024-11-11 23:50:29,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514696599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:29,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:29,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413293470] [2024-11-11 23:50:29,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:29,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:29,250 INFO L87 Difference]: Start difference. First operand 556 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:29,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:29,411 INFO L93 Difference]: Finished difference Result 1010 states and 1454 transitions. [2024-11-11 23:50:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:29,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-11 23:50:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:29,413 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:29,413 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:29,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:29,414 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 667 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:29,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 2163 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:29,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4446460980036298) internal successors, (796), 551 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:29,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 802 transitions. [2024-11-11 23:50:29,424 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 802 transitions. Word has length 173 [2024-11-11 23:50:29,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:29,425 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 802 transitions. [2024-11-11 23:50:29,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 802 transitions. [2024-11-11 23:50:29,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-11 23:50:29,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:29,426 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:29,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 23:50:29,426 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:29,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash 973417876, now seen corresponding path program 1 times [2024-11-11 23:50:29,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:29,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172990256] [2024-11-11 23:50:29,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:29,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:29,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:29,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172990256] [2024-11-11 23:50:29,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172990256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:29,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:29,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779615761] [2024-11-11 23:50:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:29,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:29,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:29,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:29,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:29,836 INFO L87 Difference]: Start difference. First operand 556 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:29,972 INFO L93 Difference]: Finished difference Result 1010 states and 1452 transitions. [2024-11-11 23:50:29,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 174 [2024-11-11 23:50:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:29,974 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:29,975 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:29,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:29,975 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 664 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:29,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1453 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.442831215970962) internal successors, (795), 551 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 801 transitions. [2024-11-11 23:50:29,988 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 801 transitions. Word has length 174 [2024-11-11 23:50:29,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:29,988 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 801 transitions. [2024-11-11 23:50:29,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 801 transitions. [2024-11-11 23:50:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-11 23:50:29,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:29,990 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:29,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 23:50:29,990 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:29,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1296489791, now seen corresponding path program 1 times [2024-11-11 23:50:29,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:29,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812661987] [2024-11-11 23:50:29,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:30,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:30,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812661987] [2024-11-11 23:50:30,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812661987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:30,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:30,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974074329] [2024-11-11 23:50:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:30,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:30,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:30,368 INFO L87 Difference]: Start difference. First operand 556 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:30,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:30,504 INFO L93 Difference]: Finished difference Result 1010 states and 1450 transitions. [2024-11-11 23:50:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:30,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-11-11 23:50:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:30,506 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:30,507 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:30,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:30,507 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 663 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:30,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1453 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:30,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.441016333938294) internal successors, (794), 551 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 800 transitions. [2024-11-11 23:50:30,516 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 800 transitions. Word has length 175 [2024-11-11 23:50:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:30,516 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 800 transitions. [2024-11-11 23:50:30,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 800 transitions. [2024-11-11 23:50:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-11 23:50:30,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:30,518 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:30,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 23:50:30,518 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:30,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:30,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1292880851, now seen corresponding path program 1 times [2024-11-11 23:50:30,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:30,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140142010] [2024-11-11 23:50:30,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:30,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:30,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:30,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140142010] [2024-11-11 23:50:30,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140142010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:30,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:30,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:30,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463841537] [2024-11-11 23:50:30,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:30,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:30,932 INFO L87 Difference]: Start difference. First operand 556 states and 800 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:31,128 INFO L93 Difference]: Finished difference Result 1012 states and 1450 transitions. [2024-11-11 23:50:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:31,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-11-11 23:50:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:31,132 INFO L225 Difference]: With dead ends: 1012 [2024-11-11 23:50:31,132 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:31,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:31,133 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 2 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:31,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2174 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 23:50:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4392014519056262) internal successors, (793), 551 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2024-11-11 23:50:31,148 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 176 [2024-11-11 23:50:31,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:31,149 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2024-11-11 23:50:31,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2024-11-11 23:50:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-11 23:50:31,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:31,151 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:31,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 23:50:31,152 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:31,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 89470408, now seen corresponding path program 1 times [2024-11-11 23:50:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687557356] [2024-11-11 23:50:31,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:31,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:31,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:31,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:31,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:31,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687557356] [2024-11-11 23:50:31,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687557356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:31,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:31,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146138427] [2024-11-11 23:50:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:31,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:31,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:31,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:31,550 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:31,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:31,683 INFO L93 Difference]: Finished difference Result 1010 states and 1446 transitions. [2024-11-11 23:50:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-11-11 23:50:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:31,686 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:31,686 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:31,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:31,687 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1308 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:31,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1444 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4373865698729582) internal successors, (792), 551 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 798 transitions. [2024-11-11 23:50:31,701 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 798 transitions. Word has length 177 [2024-11-11 23:50:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:31,701 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 798 transitions. [2024-11-11 23:50:31,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 798 transitions. [2024-11-11 23:50:31,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 23:50:31,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:31,702 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:31,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 23:50:31,703 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:31,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:31,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2004024685, now seen corresponding path program 1 times [2024-11-11 23:50:31,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:31,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410357228] [2024-11-11 23:50:31,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:31,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:32,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:32,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410357228] [2024-11-11 23:50:32,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410357228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:32,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:32,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:32,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655859264] [2024-11-11 23:50:32,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:32,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:32,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:32,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:32,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:32,097 INFO L87 Difference]: Start difference. First operand 556 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:32,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:32,201 INFO L93 Difference]: Finished difference Result 1010 states and 1444 transitions. [2024-11-11 23:50:32,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:32,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-11-11 23:50:32,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:32,204 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:32,204 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:32,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:32,205 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 644 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:32,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1444 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:32,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:32,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4355716878402904) internal successors, (791), 551 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 797 transitions. [2024-11-11 23:50:32,214 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 797 transitions. Word has length 178 [2024-11-11 23:50:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:32,214 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 797 transitions. [2024-11-11 23:50:32,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:32,214 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 797 transitions. [2024-11-11 23:50:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 23:50:32,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:32,215 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:32,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 23:50:32,216 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:32,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:32,216 INFO L85 PathProgramCache]: Analyzing trace with hash 967624263, now seen corresponding path program 1 times [2024-11-11 23:50:32,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:32,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830740307] [2024-11-11 23:50:32,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:32,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:32,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:32,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:32,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830740307] [2024-11-11 23:50:32,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830740307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:32,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024271959] [2024-11-11 23:50:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:32,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:32,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:32,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:32,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:32,614 INFO L87 Difference]: Start difference. First operand 556 states and 797 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:32,743 INFO L93 Difference]: Finished difference Result 1010 states and 1442 transitions. [2024-11-11 23:50:32,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-11-11 23:50:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:32,745 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:32,745 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:32,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:32,747 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 658 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:32,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1451 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:32,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4337568058076224) internal successors, (790), 551 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 796 transitions. [2024-11-11 23:50:32,758 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 796 transitions. Word has length 179 [2024-11-11 23:50:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:32,758 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 796 transitions. [2024-11-11 23:50:32,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:32,759 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 796 transitions. [2024-11-11 23:50:32,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-11 23:50:32,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:32,759 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:32,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 23:50:32,760 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:32,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:32,760 INFO L85 PathProgramCache]: Analyzing trace with hash -242540242, now seen corresponding path program 1 times [2024-11-11 23:50:32,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:32,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174674351] [2024-11-11 23:50:32,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:32,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:33,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174674351] [2024-11-11 23:50:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174674351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:33,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:33,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910236275] [2024-11-11 23:50:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:33,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:33,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:33,172 INFO L87 Difference]: Start difference. First operand 556 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:33,303 INFO L93 Difference]: Finished difference Result 1010 states and 1440 transitions. [2024-11-11 23:50:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:33,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 180 [2024-11-11 23:50:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:33,305 INFO L225 Difference]: With dead ends: 1010 [2024-11-11 23:50:33,305 INFO L226 Difference]: Without dead ends: 556 [2024-11-11 23:50:33,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:33,306 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 657 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:33,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1451 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-11 23:50:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-11 23:50:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4319419237749547) internal successors, (789), 551 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 795 transitions. [2024-11-11 23:50:33,315 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 795 transitions. Word has length 180 [2024-11-11 23:50:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:33,315 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 795 transitions. [2024-11-11 23:50:33,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 795 transitions. [2024-11-11 23:50:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-11 23:50:33,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:33,316 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:33,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-11 23:50:33,317 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:33,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1196109242, now seen corresponding path program 1 times [2024-11-11 23:50:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:33,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650794565] [2024-11-11 23:50:33,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:33,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:33,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650794565] [2024-11-11 23:50:33,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650794565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:33,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:33,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:33,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906664039] [2024-11-11 23:50:33,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:33,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:33,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:33,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:33,963 INFO L87 Difference]: Start difference. First operand 556 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:34,008 INFO L93 Difference]: Finished difference Result 1089 states and 1528 transitions. [2024-11-11 23:50:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 23:50:34,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 181 [2024-11-11 23:50:34,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:34,010 INFO L225 Difference]: With dead ends: 1089 [2024-11-11 23:50:34,010 INFO L226 Difference]: Without dead ends: 635 [2024-11-11 23:50:34,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:34,011 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 19 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:34,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3119 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-11 23:50:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2024-11-11 23:50:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 628 states have (on average 1.393312101910828) internal successors, (875), 628 states have internal predecessors, (875), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 23:50:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 881 transitions. [2024-11-11 23:50:34,026 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 881 transitions. Word has length 181 [2024-11-11 23:50:34,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:34,027 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 881 transitions. [2024-11-11 23:50:34,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:34,027 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 881 transitions. [2024-11-11 23:50:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-11 23:50:34,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:34,029 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:34,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-11 23:50:34,030 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:34,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1810760508, now seen corresponding path program 1 times [2024-11-11 23:50:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:34,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350011898] [2024-11-11 23:50:34,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:34,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:34,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:34,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:34,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 23:50:34,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:34,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350011898] [2024-11-11 23:50:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350011898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:34,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:34,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:50:34,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561345584] [2024-11-11 23:50:34,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:34,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:50:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:34,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:50:34,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:34,700 INFO L87 Difference]: Start difference. First operand 633 states and 881 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:34,817 INFO L93 Difference]: Finished difference Result 1396 states and 1898 transitions. [2024-11-11 23:50:34,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:50:34,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 182 [2024-11-11 23:50:34,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:34,820 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:34,820 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:34,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:50:34,821 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 1133 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:34,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 3098 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:34,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:34,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3488914819136524) internal successors, (1156), 857 states have internal predecessors, (1156), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1168 transitions. [2024-11-11 23:50:34,839 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1168 transitions. Word has length 182 [2024-11-11 23:50:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:34,840 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1168 transitions. [2024-11-11 23:50:34,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:50:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1168 transitions. [2024-11-11 23:50:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-11 23:50:34,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:34,842 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:34,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-11 23:50:34,843 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:34,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:34,843 INFO L85 PathProgramCache]: Analyzing trace with hash -958233778, now seen corresponding path program 1 times [2024-11-11 23:50:34,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:34,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129994972] [2024-11-11 23:50:34,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:34,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-11 23:50:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-11 23:50:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-11 23:50:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:35,525 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:35,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:35,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129994972] [2024-11-11 23:50:35,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129994972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:35,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:35,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:35,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623266060] [2024-11-11 23:50:35,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:35,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:35,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:35,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:35,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:35,528 INFO L87 Difference]: Start difference. First operand 865 states and 1168 transitions. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:35,646 INFO L93 Difference]: Finished difference Result 1396 states and 1897 transitions. [2024-11-11 23:50:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:35,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 450 [2024-11-11 23:50:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:35,650 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:35,650 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:35,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:35,652 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 723 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:35,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1451 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:35,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3477246207701283) internal successors, (1155), 857 states have internal predecessors, (1155), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1167 transitions. [2024-11-11 23:50:35,667 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1167 transitions. Word has length 450 [2024-11-11 23:50:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:35,667 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1167 transitions. [2024-11-11 23:50:35,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1167 transitions. [2024-11-11 23:50:35,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-11 23:50:35,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:35,670 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:35,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-11 23:50:35,670 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:35,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1652333072, now seen corresponding path program 1 times [2024-11-11 23:50:35,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:35,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291235409] [2024-11-11 23:50:35,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-11-11 23:50:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-11 23:50:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-11 23:50:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:36,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:36,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291235409] [2024-11-11 23:50:36,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291235409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:36,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:36,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:36,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282440047] [2024-11-11 23:50:36,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:36,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:36,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:36,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:36,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:36,439 INFO L87 Difference]: Start difference. First operand 865 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:36,548 INFO L93 Difference]: Finished difference Result 1396 states and 1895 transitions. [2024-11-11 23:50:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 451 [2024-11-11 23:50:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:36,551 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:36,551 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:36,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:36,552 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1307 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:36,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1444 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3465577596266045) internal successors, (1154), 857 states have internal predecessors, (1154), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1166 transitions. [2024-11-11 23:50:36,566 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1166 transitions. Word has length 451 [2024-11-11 23:50:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:36,567 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1166 transitions. [2024-11-11 23:50:36,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:36,567 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1166 transitions. [2024-11-11 23:50:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-11 23:50:36,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:36,569 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:36,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-11 23:50:36,570 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:36,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1564026489, now seen corresponding path program 1 times [2024-11-11 23:50:36,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:36,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786366526] [2024-11-11 23:50:36,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-11 23:50:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-11 23:50:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-11 23:50:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:37,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:37,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786366526] [2024-11-11 23:50:37,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786366526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:37,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:37,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:37,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22439009] [2024-11-11 23:50:37,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:37,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:37,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:37,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:37,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:37,221 INFO L87 Difference]: Start difference. First operand 865 states and 1166 transitions. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:37,332 INFO L93 Difference]: Finished difference Result 1396 states and 1893 transitions. [2024-11-11 23:50:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 452 [2024-11-11 23:50:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:37,335 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:37,335 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:37,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:37,336 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 707 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:37,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1451 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3453908984830805) internal successors, (1153), 857 states have internal predecessors, (1153), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1165 transitions. [2024-11-11 23:50:37,354 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1165 transitions. Word has length 452 [2024-11-11 23:50:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:37,354 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1165 transitions. [2024-11-11 23:50:37,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1165 transitions. [2024-11-11 23:50:37,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-11 23:50:37,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:37,357 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:37,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-11 23:50:37,358 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:37,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:37,358 INFO L85 PathProgramCache]: Analyzing trace with hash -18661797, now seen corresponding path program 1 times [2024-11-11 23:50:37,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:37,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217805455] [2024-11-11 23:50:37,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:37,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-11-11 23:50:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-11 23:50:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-11 23:50:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:38,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:38,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217805455] [2024-11-11 23:50:38,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217805455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:38,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:38,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:38,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057749308] [2024-11-11 23:50:38,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:38,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:38,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:38,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:38,097 INFO L87 Difference]: Start difference. First operand 865 states and 1165 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:38,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:38,201 INFO L93 Difference]: Finished difference Result 1396 states and 1891 transitions. [2024-11-11 23:50:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 453 [2024-11-11 23:50:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:38,204 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:38,204 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:38,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:38,206 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 699 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:38,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1451 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3442240373395566) internal successors, (1152), 857 states have internal predecessors, (1152), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1164 transitions. [2024-11-11 23:50:38,227 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1164 transitions. Word has length 453 [2024-11-11 23:50:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:38,228 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1164 transitions. [2024-11-11 23:50:38,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:38,229 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1164 transitions. [2024-11-11 23:50:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-11 23:50:38,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:38,231 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:38,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-11 23:50:38,232 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:38,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:38,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2045725148, now seen corresponding path program 1 times [2024-11-11 23:50:38,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:38,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055235753] [2024-11-11 23:50:38,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:38,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-11-11 23:50:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-11 23:50:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-11 23:50:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055235753] [2024-11-11 23:50:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055235753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:38,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:38,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5753231] [2024-11-11 23:50:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:38,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:38,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:38,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:38,889 INFO L87 Difference]: Start difference. First operand 865 states and 1164 transitions. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:39,000 INFO L93 Difference]: Finished difference Result 1396 states and 1889 transitions. [2024-11-11 23:50:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:39,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 454 [2024-11-11 23:50:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:39,003 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:39,004 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:39,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:39,005 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 691 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:39,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1451 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3430571761960326) internal successors, (1151), 857 states have internal predecessors, (1151), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1163 transitions. [2024-11-11 23:50:39,019 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1163 transitions. Word has length 454 [2024-11-11 23:50:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:39,019 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1163 transitions. [2024-11-11 23:50:39,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1163 transitions. [2024-11-11 23:50:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-11 23:50:39,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:39,022 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:39,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-11 23:50:39,022 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:39,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2051569446, now seen corresponding path program 1 times [2024-11-11 23:50:39,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:39,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101808014] [2024-11-11 23:50:39,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:39,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-11 23:50:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-11 23:50:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-11 23:50:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:39,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101808014] [2024-11-11 23:50:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101808014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:39,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:39,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835391845] [2024-11-11 23:50:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:39,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:39,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:39,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:39,646 INFO L87 Difference]: Start difference. First operand 865 states and 1163 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:39,751 INFO L93 Difference]: Finished difference Result 1396 states and 1887 transitions. [2024-11-11 23:50:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 455 [2024-11-11 23:50:39,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:39,758 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:39,758 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:39,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:39,759 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1243 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:39,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1444 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:39,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3418903150525088) internal successors, (1150), 857 states have internal predecessors, (1150), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1162 transitions. [2024-11-11 23:50:39,773 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1162 transitions. Word has length 455 [2024-11-11 23:50:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:39,774 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1162 transitions. [2024-11-11 23:50:39,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1162 transitions. [2024-11-11 23:50:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-11 23:50:39,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:39,776 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:39,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-11 23:50:39,777 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:39,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:39,777 INFO L85 PathProgramCache]: Analyzing trace with hash 967242319, now seen corresponding path program 1 times [2024-11-11 23:50:39,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:39,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660549796] [2024-11-11 23:50:39,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:39,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-11 23:50:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-11 23:50:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-11 23:50:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:40,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:40,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660549796] [2024-11-11 23:50:40,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660549796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:40,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:40,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:40,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916631625] [2024-11-11 23:50:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:40,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:40,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:40,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:40,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:40,382 INFO L87 Difference]: Start difference. First operand 865 states and 1162 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:40,487 INFO L93 Difference]: Finished difference Result 1396 states and 1885 transitions. [2024-11-11 23:50:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 456 [2024-11-11 23:50:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:40,490 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:40,490 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:40,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:40,491 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 675 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:40,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1451 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3407234539089847) internal successors, (1149), 857 states have internal predecessors, (1149), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1161 transitions. [2024-11-11 23:50:40,505 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1161 transitions. Word has length 456 [2024-11-11 23:50:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:40,505 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1161 transitions. [2024-11-11 23:50:40,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1161 transitions. [2024-11-11 23:50:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-11 23:50:40,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:40,508 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:40,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-11 23:50:40,508 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:40,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash -87554959, now seen corresponding path program 1 times [2024-11-11 23:50:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264363567] [2024-11-11 23:50:40,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-11 23:50:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-11 23:50:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-11 23:50:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:41,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:41,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264363567] [2024-11-11 23:50:41,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264363567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:41,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:41,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111388076] [2024-11-11 23:50:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:41,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:41,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:41,114 INFO L87 Difference]: Start difference. First operand 865 states and 1161 transitions. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:41,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:41,259 INFO L93 Difference]: Finished difference Result 1396 states and 1883 transitions. [2024-11-11 23:50:41,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:41,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 457 [2024-11-11 23:50:41,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:41,262 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:41,262 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:41,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:41,263 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1211 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:41,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1444 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.339556592765461) internal successors, (1148), 857 states have internal predecessors, (1148), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1160 transitions. [2024-11-11 23:50:41,280 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1160 transitions. Word has length 457 [2024-11-11 23:50:41,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:41,281 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1160 transitions. [2024-11-11 23:50:41,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1160 transitions. [2024-11-11 23:50:41,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-11 23:50:41,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:41,284 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:41,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-11 23:50:41,284 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:41,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:41,284 INFO L85 PathProgramCache]: Analyzing trace with hash 588880634, now seen corresponding path program 1 times [2024-11-11 23:50:41,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991077273] [2024-11-11 23:50:41,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:41,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-11 23:50:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-11 23:50:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-11 23:50:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:41,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:41,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991077273] [2024-11-11 23:50:41,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991077273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:41,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:41,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:41,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446249497] [2024-11-11 23:50:41,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:41,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:41,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:41,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:41,891 INFO L87 Difference]: Start difference. First operand 865 states and 1160 transitions. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:41,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:41,965 INFO L93 Difference]: Finished difference Result 1396 states and 1881 transitions. [2024-11-11 23:50:41,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:41,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-11 23:50:41,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:41,967 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:41,968 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:41,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:41,969 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 644 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:41,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1499 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:41,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:41,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.338389731621937) internal successors, (1147), 857 states have internal predecessors, (1147), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1159 transitions. [2024-11-11 23:50:41,981 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1159 transitions. Word has length 458 [2024-11-11 23:50:41,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:41,981 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1159 transitions. [2024-11-11 23:50:41,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:41,982 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1159 transitions. [2024-11-11 23:50:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-11 23:50:41,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:41,984 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:41,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-11 23:50:41,984 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:41,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 366847548, now seen corresponding path program 1 times [2024-11-11 23:50:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:41,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498281848] [2024-11-11 23:50:41,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:41,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-11 23:50:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-11 23:50:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-11 23:50:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:42,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:42,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498281848] [2024-11-11 23:50:42,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498281848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:42,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:42,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:42,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465896342] [2024-11-11 23:50:42,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:42,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:42,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:42,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:42,699 INFO L87 Difference]: Start difference. First operand 865 states and 1159 transitions. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:42,782 INFO L93 Difference]: Finished difference Result 1396 states and 1879 transitions. [2024-11-11 23:50:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 459 [2024-11-11 23:50:42,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:42,785 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:42,785 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:42,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:42,790 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 1164 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:42,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1492 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.337222870478413) internal successors, (1146), 857 states have internal predecessors, (1146), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1158 transitions. [2024-11-11 23:50:42,810 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1158 transitions. Word has length 459 [2024-11-11 23:50:42,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:42,810 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1158 transitions. [2024-11-11 23:50:42,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1158 transitions. [2024-11-11 23:50:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-11 23:50:42,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:42,815 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:42,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-11 23:50:42,815 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:42,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -530157531, now seen corresponding path program 1 times [2024-11-11 23:50:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:42,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305840348] [2024-11-11 23:50:42,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:42,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-11 23:50:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-11 23:50:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-11 23:50:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:43,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:43,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305840348] [2024-11-11 23:50:43,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305840348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:43,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:43,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:43,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287065621] [2024-11-11 23:50:43,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:43,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:43,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:43,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:43,465 INFO L87 Difference]: Start difference. First operand 865 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:43,536 INFO L93 Difference]: Finished difference Result 1396 states and 1877 transitions. [2024-11-11 23:50:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:43,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 460 [2024-11-11 23:50:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:43,538 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:43,538 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:43,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:43,539 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 1148 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:43,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1492 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:43,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3360560093348892) internal successors, (1145), 857 states have internal predecessors, (1145), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1157 transitions. [2024-11-11 23:50:43,552 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1157 transitions. Word has length 460 [2024-11-11 23:50:43,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:43,552 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1157 transitions. [2024-11-11 23:50:43,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1157 transitions. [2024-11-11 23:50:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-11 23:50:43,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:43,555 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:43,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-11 23:50:43,555 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:43,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:43,555 INFO L85 PathProgramCache]: Analyzing trace with hash -261809017, now seen corresponding path program 1 times [2024-11-11 23:50:43,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:43,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005295251] [2024-11-11 23:50:43,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:43,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-11 23:50:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-11 23:50:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-11 23:50:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:44,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005295251] [2024-11-11 23:50:44,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005295251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:44,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:44,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872315261] [2024-11-11 23:50:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:44,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:44,194 INFO L87 Difference]: Start difference. First operand 865 states and 1157 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:44,263 INFO L93 Difference]: Finished difference Result 1396 states and 1875 transitions. [2024-11-11 23:50:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:44,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-11-11 23:50:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:44,265 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:44,265 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:44,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:44,267 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 620 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:44,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1499 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3348891481913652) internal successors, (1144), 857 states have internal predecessors, (1144), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1156 transitions. [2024-11-11 23:50:44,282 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1156 transitions. Word has length 461 [2024-11-11 23:50:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:44,282 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1156 transitions. [2024-11-11 23:50:44,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1156 transitions. [2024-11-11 23:50:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-11 23:50:44,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:44,285 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:44,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-11 23:50:44,286 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:44,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1114321360, now seen corresponding path program 1 times [2024-11-11 23:50:44,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:44,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133086632] [2024-11-11 23:50:44,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:44,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-11 23:50:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-11 23:50:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-11 23:50:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:44,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:44,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133086632] [2024-11-11 23:50:44,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133086632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:44,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:44,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830383422] [2024-11-11 23:50:44,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:44,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:44,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:44,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:44,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:44,960 INFO L87 Difference]: Start difference. First operand 865 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:45,010 INFO L93 Difference]: Finished difference Result 1396 states and 1873 transitions. [2024-11-11 23:50:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:45,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-11-11 23:50:45,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:45,013 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:45,013 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:45,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:45,014 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 605 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:45,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1523 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:45,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3337222870478413) internal successors, (1143), 857 states have internal predecessors, (1143), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1155 transitions. [2024-11-11 23:50:45,027 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1155 transitions. Word has length 462 [2024-11-11 23:50:45,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:45,027 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1155 transitions. [2024-11-11 23:50:45,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:45,028 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1155 transitions. [2024-11-11 23:50:45,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-11 23:50:45,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:45,030 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:45,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-11 23:50:45,030 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:45,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:45,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1587160914, now seen corresponding path program 1 times [2024-11-11 23:50:45,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:45,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806714098] [2024-11-11 23:50:45,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-11 23:50:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-11 23:50:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-11 23:50:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:45,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806714098] [2024-11-11 23:50:45,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806714098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:45,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:45,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074576732] [2024-11-11 23:50:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:45,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:45,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:45,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:45,729 INFO L87 Difference]: Start difference. First operand 865 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:45,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:45,777 INFO L93 Difference]: Finished difference Result 1396 states and 1871 transitions. [2024-11-11 23:50:45,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:45,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-11-11 23:50:45,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:45,780 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:45,780 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:45,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:45,781 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 597 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:45,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1523 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:45,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:45,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3325554259043173) internal successors, (1142), 857 states have internal predecessors, (1142), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1154 transitions. [2024-11-11 23:50:45,794 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1154 transitions. Word has length 463 [2024-11-11 23:50:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:45,794 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1154 transitions. [2024-11-11 23:50:45,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1154 transitions. [2024-11-11 23:50:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-11 23:50:45,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:45,797 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:45,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-11 23:50:45,798 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:45,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1931108357, now seen corresponding path program 1 times [2024-11-11 23:50:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:45,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786206934] [2024-11-11 23:50:45,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-11 23:50:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-11 23:50:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-11 23:50:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:46,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786206934] [2024-11-11 23:50:46,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786206934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:46,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:46,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:46,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558017397] [2024-11-11 23:50:46,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:46,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:46,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:46,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:46,483 INFO L87 Difference]: Start difference. First operand 865 states and 1154 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:46,753 INFO L93 Difference]: Finished difference Result 1396 states and 1869 transitions. [2024-11-11 23:50:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-11-11 23:50:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:46,755 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:46,755 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:46,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:46,756 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 582 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:46,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 1165 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 23:50:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3313885647607935) internal successors, (1141), 857 states have internal predecessors, (1141), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1153 transitions. [2024-11-11 23:50:46,767 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1153 transitions. Word has length 464 [2024-11-11 23:50:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:46,768 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1153 transitions. [2024-11-11 23:50:46,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1153 transitions. [2024-11-11 23:50:46,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-11 23:50:46,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:46,774 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:46,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-11 23:50:46,775 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:46,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:46,775 INFO L85 PathProgramCache]: Analyzing trace with hash 68716189, now seen corresponding path program 1 times [2024-11-11 23:50:46,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:46,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929970684] [2024-11-11 23:50:46,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-11 23:50:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-11 23:50:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-11 23:50:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:47,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929970684] [2024-11-11 23:50:47,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929970684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:47,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:47,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:47,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540279756] [2024-11-11 23:50:47,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:47,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:47,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:47,885 INFO L87 Difference]: Start difference. First operand 865 states and 1153 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:47,933 INFO L93 Difference]: Finished difference Result 1396 states and 1867 transitions. [2024-11-11 23:50:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:47,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-11-11 23:50:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:47,936 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:47,936 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:47,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:47,937 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 495 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:47,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1514 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3302217036172694) internal successors, (1140), 857 states have internal predecessors, (1140), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1152 transitions. [2024-11-11 23:50:47,951 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1152 transitions. Word has length 465 [2024-11-11 23:50:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:47,951 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1152 transitions. [2024-11-11 23:50:47,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1152 transitions. [2024-11-11 23:50:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-11 23:50:47,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:47,954 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:47,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-11 23:50:47,954 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:47,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:47,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2072862135, now seen corresponding path program 1 times [2024-11-11 23:50:47,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:47,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203887119] [2024-11-11 23:50:47,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:47,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-11 23:50:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-11 23:50:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-11 23:50:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:48,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:48,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203887119] [2024-11-11 23:50:48,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203887119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:48,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:48,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455651356] [2024-11-11 23:50:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:48,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:48,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:48,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:48,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:48,963 INFO L87 Difference]: Start difference. First operand 865 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:49,033 INFO L93 Difference]: Finished difference Result 1396 states and 1865 transitions. [2024-11-11 23:50:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:49,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-11-11 23:50:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:49,036 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:49,036 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:49,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:49,037 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 655 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:49,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1491 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3290548424737456) internal successors, (1139), 857 states have internal predecessors, (1139), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1151 transitions. [2024-11-11 23:50:49,051 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1151 transitions. Word has length 466 [2024-11-11 23:50:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:49,051 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1151 transitions. [2024-11-11 23:50:49,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:49,052 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1151 transitions. [2024-11-11 23:50:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-11 23:50:49,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:49,054 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:49,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-11 23:50:49,054 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:49,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:49,054 INFO L85 PathProgramCache]: Analyzing trace with hash -621088291, now seen corresponding path program 1 times [2024-11-11 23:50:49,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:49,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316562284] [2024-11-11 23:50:49,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-11 23:50:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-11 23:50:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-11 23:50:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:50,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316562284] [2024-11-11 23:50:50,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316562284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:50,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:50,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:50,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093159719] [2024-11-11 23:50:50,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:50,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:50,264 INFO L87 Difference]: Start difference. First operand 865 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:50,334 INFO L93 Difference]: Finished difference Result 1396 states and 1863 transitions. [2024-11-11 23:50:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-11-11 23:50:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:50,337 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:50,337 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:50,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:50,338 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 1166 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:50,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1484 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:50,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3278879813302218) internal successors, (1138), 857 states have internal predecessors, (1138), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1150 transitions. [2024-11-11 23:50:50,349 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1150 transitions. Word has length 467 [2024-11-11 23:50:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:50,349 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1150 transitions. [2024-11-11 23:50:50,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1150 transitions. [2024-11-11 23:50:50,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-11 23:50:50,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:50,352 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:50,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-11 23:50:50,352 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:50,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:50,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1484072218, now seen corresponding path program 1 times [2024-11-11 23:50:50,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:50,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774986094] [2024-11-11 23:50:50,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:50,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-11 23:50:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-11 23:50:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-11 23:50:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:51,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:51,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774986094] [2024-11-11 23:50:51,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774986094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:51,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:51,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:51,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881526072] [2024-11-11 23:50:51,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:51,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:51,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:51,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:51,426 INFO L87 Difference]: Start difference. First operand 865 states and 1150 transitions. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:51,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:51,485 INFO L93 Difference]: Finished difference Result 1396 states and 1861 transitions. [2024-11-11 23:50:51,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:51,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 468 [2024-11-11 23:50:51,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:51,487 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:51,487 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:51,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:51,488 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 504 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:51,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1484 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:50:51,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3267211201866977) internal successors, (1137), 857 states have internal predecessors, (1137), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1149 transitions. [2024-11-11 23:50:51,499 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1149 transitions. Word has length 468 [2024-11-11 23:50:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:51,500 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1149 transitions. [2024-11-11 23:50:51,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1149 transitions. [2024-11-11 23:50:51,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-11 23:50:51,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:51,502 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:51,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-11 23:50:51,503 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:51,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash -29552052, now seen corresponding path program 1 times [2024-11-11 23:50:51,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:51,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245369162] [2024-11-11 23:50:51,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:51,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-11 23:50:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-11 23:50:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-11 23:50:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:52,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245369162] [2024-11-11 23:50:52,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245369162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:52,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:52,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:52,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346945752] [2024-11-11 23:50:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:52,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:52,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:52,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:52,534 INFO L87 Difference]: Start difference. First operand 865 states and 1149 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:52,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:52,634 INFO L93 Difference]: Finished difference Result 1396 states and 1859 transitions. [2024-11-11 23:50:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 469 [2024-11-11 23:50:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:52,637 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:52,637 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:52,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:52,638 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 1211 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:52,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 1422 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.325554259043174) internal successors, (1136), 857 states have internal predecessors, (1136), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1148 transitions. [2024-11-11 23:50:52,659 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1148 transitions. Word has length 469 [2024-11-11 23:50:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:52,660 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1148 transitions. [2024-11-11 23:50:52,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1148 transitions. [2024-11-11 23:50:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-11 23:50:52,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:52,663 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:52,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-11 23:50:52,663 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:52,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:52,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1861250744, now seen corresponding path program 1 times [2024-11-11 23:50:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:52,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614777208] [2024-11-11 23:50:52,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:52,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-11 23:50:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-11 23:50:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-11 23:50:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:53,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:53,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614777208] [2024-11-11 23:50:53,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614777208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:53,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:53,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024143710] [2024-11-11 23:50:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:53,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:53,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:53,693 INFO L87 Difference]: Start difference. First operand 865 states and 1148 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:53,804 INFO L93 Difference]: Finished difference Result 1396 states and 1857 transitions. [2024-11-11 23:50:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:53,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 470 [2024-11-11 23:50:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:53,808 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:53,808 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:53,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:53,809 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 1201 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:53,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 1422 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3243873978996499) internal successors, (1135), 857 states have internal predecessors, (1135), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:53,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1147 transitions. [2024-11-11 23:50:53,822 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1147 transitions. Word has length 470 [2024-11-11 23:50:53,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:53,822 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1147 transitions. [2024-11-11 23:50:53,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1147 transitions. [2024-11-11 23:50:53,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-11 23:50:53,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:53,824 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:53,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-11 23:50:53,825 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:53,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash -532059941, now seen corresponding path program 1 times [2024-11-11 23:50:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230433181] [2024-11-11 23:50:53,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-11 23:50:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-11 23:50:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-11 23:50:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:54,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:54,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230433181] [2024-11-11 23:50:54,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230433181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:54,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:54,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:54,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659920398] [2024-11-11 23:50:54,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:54,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:54,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:54,962 INFO L87 Difference]: Start difference. First operand 865 states and 1147 transitions. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:55,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:55,037 INFO L93 Difference]: Finished difference Result 1396 states and 1855 transitions. [2024-11-11 23:50:55,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:55,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 471 [2024-11-11 23:50:55,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:55,038 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:55,038 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:55,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:55,039 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 557 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:55,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1422 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:55,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.323220536756126) internal successors, (1134), 857 states have internal predecessors, (1134), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:55,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1146 transitions. [2024-11-11 23:50:55,050 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1146 transitions. Word has length 471 [2024-11-11 23:50:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:55,051 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1146 transitions. [2024-11-11 23:50:55,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1146 transitions. [2024-11-11 23:50:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-11 23:50:55,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:55,053 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:55,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-11 23:50:55,053 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:55,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1148349673, now seen corresponding path program 1 times [2024-11-11 23:50:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221583002] [2024-11-11 23:50:55,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-11 23:50:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-11 23:50:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-11 23:50:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:56,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:56,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221583002] [2024-11-11 23:50:56,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221583002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:56,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:56,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:56,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647901856] [2024-11-11 23:50:56,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:56,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:56,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:56,048 INFO L87 Difference]: Start difference. First operand 865 states and 1146 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:56,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:56,144 INFO L93 Difference]: Finished difference Result 1396 states and 1853 transitions. [2024-11-11 23:50:56,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:56,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 472 [2024-11-11 23:50:56,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:56,146 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:56,146 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:56,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:56,146 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 1181 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:56,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1422 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:56,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:56,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.322053675612602) internal successors, (1133), 857 states have internal predecessors, (1133), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1145 transitions. [2024-11-11 23:50:56,158 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1145 transitions. Word has length 472 [2024-11-11 23:50:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:56,159 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1145 transitions. [2024-11-11 23:50:56,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1145 transitions. [2024-11-11 23:50:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-11 23:50:56,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:56,161 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:56,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-11 23:50:56,161 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:56,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1007736342, now seen corresponding path program 1 times [2024-11-11 23:50:56,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:56,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118059680] [2024-11-11 23:50:56,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-11 23:50:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-11 23:50:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-11 23:50:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:57,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:57,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118059680] [2024-11-11 23:50:57,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118059680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:57,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:57,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:57,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001976612] [2024-11-11 23:50:57,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:57,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:57,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:57,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:57,445 INFO L87 Difference]: Start difference. First operand 865 states and 1145 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:57,540 INFO L93 Difference]: Finished difference Result 1396 states and 1851 transitions. [2024-11-11 23:50:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:57,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 473 [2024-11-11 23:50:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:57,542 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:57,542 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:57,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:57,543 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 1171 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:57,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1422 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:57,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3208868144690782) internal successors, (1132), 857 states have internal predecessors, (1132), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1144 transitions. [2024-11-11 23:50:57,555 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1144 transitions. Word has length 473 [2024-11-11 23:50:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:57,555 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1144 transitions. [2024-11-11 23:50:57,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1144 transitions. [2024-11-11 23:50:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-11 23:50:57,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:57,558 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:57,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-11 23:50:57,558 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:57,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1633999002, now seen corresponding path program 1 times [2024-11-11 23:50:57,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:57,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614664630] [2024-11-11 23:50:57,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:57,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-11 23:50:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-11 23:50:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-11-11 23:50:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:58,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614664630] [2024-11-11 23:50:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614664630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:58,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:58,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:50:58,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529872415] [2024-11-11 23:50:58,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:58,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:50:58,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:58,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:50:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:58,575 INFO L87 Difference]: Start difference. First operand 865 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:58,682 INFO L93 Difference]: Finished difference Result 1396 states and 1849 transitions. [2024-11-11 23:50:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 474 [2024-11-11 23:50:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:58,687 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:58,687 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:58,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:50:58,688 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 632 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:58,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1429 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:58,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3197199533255544) internal successors, (1131), 857 states have internal predecessors, (1131), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:58,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1143 transitions. [2024-11-11 23:50:58,704 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1143 transitions. Word has length 474 [2024-11-11 23:50:58,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:58,705 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1143 transitions. [2024-11-11 23:50:58,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:58,705 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1143 transitions. [2024-11-11 23:50:58,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-11 23:50:58,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:58,708 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:58,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-11 23:50:58,708 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:58,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:58,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1272882553, now seen corresponding path program 1 times [2024-11-11 23:50:58,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:58,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533383898] [2024-11-11 23:50:58,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:50:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:50:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:50:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:50:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-11 23:50:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-11 23:50:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-11 23:50:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:50:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:50:59,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:50:59,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533383898] [2024-11-11 23:50:59,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533383898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:50:59,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:50:59,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:50:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156254531] [2024-11-11 23:50:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:50:59,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:50:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:50:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:50:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:50:59,744 INFO L87 Difference]: Start difference. First operand 865 states and 1143 transitions. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:50:59,836 INFO L93 Difference]: Finished difference Result 1396 states and 1847 transitions. [2024-11-11 23:50:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:50:59,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 475 [2024-11-11 23:50:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:50:59,838 INFO L225 Difference]: With dead ends: 1396 [2024-11-11 23:50:59,838 INFO L226 Difference]: Without dead ends: 865 [2024-11-11 23:50:59,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:50:59,839 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 521 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:50:59,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1422 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:50:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-11 23:50:59,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-11 23:50:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3185530921820303) internal successors, (1130), 857 states have internal predecessors, (1130), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-11 23:50:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1142 transitions. [2024-11-11 23:50:59,851 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1142 transitions. Word has length 475 [2024-11-11 23:50:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:50:59,851 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1142 transitions. [2024-11-11 23:50:59,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:50:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1142 transitions. [2024-11-11 23:50:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-11 23:50:59,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:50:59,854 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:50:59,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-11 23:50:59,854 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:50:59,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:50:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1244619211, now seen corresponding path program 1 times [2024-11-11 23:50:59,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:50:59,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200517957] [2024-11-11 23:50:59,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:50:59,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:51:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:51:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:51:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-11 23:51:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-11 23:51:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-11-11 23:51:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:51:01,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:01,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200517957] [2024-11-11 23:51:01,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200517957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:01,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:01,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:51:01,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054202268] [2024-11-11 23:51:01,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:01,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:51:01,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:51:01,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:51:01,115 INFO L87 Difference]: Start difference. First operand 865 states and 1142 transitions. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:01,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:01,535 INFO L93 Difference]: Finished difference Result 1999 states and 2653 transitions. [2024-11-11 23:51:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:51:01,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 476 [2024-11-11 23:51:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:01,538 INFO L225 Difference]: With dead ends: 1999 [2024-11-11 23:51:01,538 INFO L226 Difference]: Without dead ends: 1468 [2024-11-11 23:51:01,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:51:01,539 INFO L435 NwaCegarLoop]: 692 mSDtfsCounter, 417 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:01,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 3345 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-11 23:51:01,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1352. [2024-11-11 23:51:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1341 states have (on average 1.3154362416107384) internal successors, (1764), 1341 states have internal predecessors, (1764), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-11 23:51:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1782 transitions. [2024-11-11 23:51:01,558 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1782 transitions. Word has length 476 [2024-11-11 23:51:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:01,559 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1782 transitions. [2024-11-11 23:51:01,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1782 transitions. [2024-11-11 23:51:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-11 23:51:01,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:01,562 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:01,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-11 23:51:01,562 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:01,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 30361493, now seen corresponding path program 1 times [2024-11-11 23:51:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:01,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661890514] [2024-11-11 23:51:01,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:51:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:51:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:51:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-11 23:51:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-11 23:51:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-11-11 23:51:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 23:51:03,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:03,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661890514] [2024-11-11 23:51:03,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661890514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:03,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:03,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:51:03,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325228230] [2024-11-11 23:51:03,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:03,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:51:03,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:03,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:51:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:51:03,065 INFO L87 Difference]: Start difference. First operand 1352 states and 1782 transitions. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:03,467 INFO L93 Difference]: Finished difference Result 1906 states and 2519 transitions. [2024-11-11 23:51:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:51:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 477 [2024-11-11 23:51:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:03,469 INFO L225 Difference]: With dead ends: 1906 [2024-11-11 23:51:03,469 INFO L226 Difference]: Without dead ends: 1375 [2024-11-11 23:51:03,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:51:03,471 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 1339 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:03,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 2256 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-11 23:51:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1353. [2024-11-11 23:51:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1342 states have (on average 1.3152011922503726) internal successors, (1765), 1342 states have internal predecessors, (1765), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-11 23:51:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1783 transitions. [2024-11-11 23:51:03,490 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1783 transitions. Word has length 477 [2024-11-11 23:51:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:03,490 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1783 transitions. [2024-11-11 23:51:03,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1783 transitions. [2024-11-11 23:51:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-11 23:51:03,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:03,493 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:03,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-11 23:51:03,493 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1095729214, now seen corresponding path program 1 times [2024-11-11 23:51:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105568533] [2024-11-11 23:51:03,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 23:51:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 23:51:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 23:51:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-11 23:51:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-11 23:51:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-11-11 23:51:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-11 23:51:05,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:05,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105568533] [2024-11-11 23:51:05,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105568533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:05,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:05,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 23:51:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206958857] [2024-11-11 23:51:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:05,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 23:51:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:05,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 23:51:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:51:05,046 INFO L87 Difference]: Start difference. First operand 1353 states and 1783 transitions. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:05,194 INFO L93 Difference]: Finished difference Result 3074 states and 4032 transitions. [2024-11-11 23:51:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 23:51:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 477 [2024-11-11 23:51:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:05,197 INFO L225 Difference]: With dead ends: 3074 [2024-11-11 23:51:05,197 INFO L226 Difference]: Without dead ends: 2361 [2024-11-11 23:51:05,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:51:05,198 INFO L435 NwaCegarLoop]: 1849 mSDtfsCounter, 1134 mSDsluCounter, 8679 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 10528 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:05,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 10528 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 23:51:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-11-11 23:51:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1420. [2024-11-11 23:51:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1406 states have (on average 1.3200568990042674) internal successors, (1856), 1406 states have internal predecessors, (1856), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1880 transitions. [2024-11-11 23:51:05,222 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1880 transitions. Word has length 477 [2024-11-11 23:51:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:05,222 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1880 transitions. [2024-11-11 23:51:05,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1880 transitions. [2024-11-11 23:51:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-11 23:51:05,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:05,225 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:05,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-11 23:51:05,225 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:05,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash 367026472, now seen corresponding path program 1 times [2024-11-11 23:51:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:05,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617949763] [2024-11-11 23:51:05,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:05,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 23:51:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 23:51:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 23:51:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-11 23:51:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-11 23:51:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-11-11 23:51:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-11 23:51:06,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:06,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617949763] [2024-11-11 23:51:06,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617949763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:06,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:06,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:51:06,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738742751] [2024-11-11 23:51:06,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:06,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:51:06,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:06,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:51:06,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:51:06,695 INFO L87 Difference]: Start difference. First operand 1420 states and 1880 transitions. Second operand has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:06,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:06,941 INFO L93 Difference]: Finished difference Result 2932 states and 3879 transitions. [2024-11-11 23:51:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 23:51:06,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 478 [2024-11-11 23:51:06,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:06,944 INFO L225 Difference]: With dead ends: 2932 [2024-11-11 23:51:06,944 INFO L226 Difference]: Without dead ends: 1436 [2024-11-11 23:51:06,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-11 23:51:06,947 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 824 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:06,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 3518 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 23:51:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-11 23:51:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1428. [2024-11-11 23:51:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1414 states have (on average 1.3154172560113153) internal successors, (1860), 1414 states have internal predecessors, (1860), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1884 transitions. [2024-11-11 23:51:06,972 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1884 transitions. Word has length 478 [2024-11-11 23:51:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:06,972 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1884 transitions. [2024-11-11 23:51:06,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-11 23:51:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1884 transitions. [2024-11-11 23:51:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-11 23:51:06,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:06,975 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:06,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-11 23:51:06,975 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:06,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:06,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1919329216, now seen corresponding path program 1 times [2024-11-11 23:51:06,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:06,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445614533] [2024-11-11 23:51:06,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:06,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 23:51:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 23:51:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 23:51:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-11 23:51:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-11 23:51:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-11-11 23:51:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-11 23:51:08,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:08,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445614533] [2024-11-11 23:51:08,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445614533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:08,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:08,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:51:08,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073094391] [2024-11-11 23:51:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:08,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:51:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:51:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:51:08,367 INFO L87 Difference]: Start difference. First operand 1428 states and 1884 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:51:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:08,806 INFO L93 Difference]: Finished difference Result 2604 states and 3404 transitions. [2024-11-11 23:51:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:51:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 480 [2024-11-11 23:51:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:08,809 INFO L225 Difference]: With dead ends: 2604 [2024-11-11 23:51:08,809 INFO L226 Difference]: Without dead ends: 1444 [2024-11-11 23:51:08,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-11 23:51:08,810 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 742 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:08,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 2240 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-11-11 23:51:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2024-11-11 23:51:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1422 states have (on average 1.310829817158931) internal successors, (1864), 1422 states have internal predecessors, (1864), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1888 transitions. [2024-11-11 23:51:08,831 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1888 transitions. Word has length 480 [2024-11-11 23:51:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:08,831 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 1888 transitions. [2024-11-11 23:51:08,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:51:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1888 transitions. [2024-11-11 23:51:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-11 23:51:08,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:08,834 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:08,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-11 23:51:08,834 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:08,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1955268854, now seen corresponding path program 1 times [2024-11-11 23:51:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539661800] [2024-11-11 23:51:08,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:08,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 23:51:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 23:51:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 23:51:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-11 23:51:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-11 23:51:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-11-11 23:51:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-11 23:51:11,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539661800] [2024-11-11 23:51:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539661800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:11,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:11,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:51:11,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738513677] [2024-11-11 23:51:11,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:11,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:51:11,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:11,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:51:11,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:51:11,578 INFO L87 Difference]: Start difference. First operand 1436 states and 1888 transitions. Second operand has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-11 23:51:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:12,066 INFO L93 Difference]: Finished difference Result 2678 states and 3499 transitions. [2024-11-11 23:51:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 23:51:12,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 482 [2024-11-11 23:51:12,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:12,069 INFO L225 Difference]: With dead ends: 2678 [2024-11-11 23:51:12,069 INFO L226 Difference]: Without dead ends: 1468 [2024-11-11 23:51:12,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-11 23:51:12,072 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 754 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:12,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 3316 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:12,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-11 23:51:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1456. [2024-11-11 23:51:12,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1442 states have (on average 1.3092926490984744) internal successors, (1888), 1442 states have internal predecessors, (1888), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:12,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1912 transitions. [2024-11-11 23:51:12,092 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1912 transitions. Word has length 482 [2024-11-11 23:51:12,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:12,092 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 1912 transitions. [2024-11-11 23:51:12,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-11 23:51:12,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1912 transitions. [2024-11-11 23:51:12,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-11 23:51:12,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:12,095 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:12,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-11 23:51:12,096 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:12,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash -691840160, now seen corresponding path program 1 times [2024-11-11 23:51:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:12,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53618128] [2024-11-11 23:51:12,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 23:51:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 23:51:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 23:51:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-11 23:51:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-11 23:51:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-11-11 23:51:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-11 23:51:13,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:13,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53618128] [2024-11-11 23:51:13,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53618128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:51:13,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:51:13,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:51:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724656606] [2024-11-11 23:51:13,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:13,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:51:13,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:13,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:51:13,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:51:13,601 INFO L87 Difference]: Start difference. First operand 1456 states and 1912 transitions. Second operand has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:51:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:14,015 INFO L93 Difference]: Finished difference Result 2736 states and 3568 transitions. [2024-11-11 23:51:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:51:14,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 484 [2024-11-11 23:51:14,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:14,018 INFO L225 Difference]: With dead ends: 2736 [2024-11-11 23:51:14,018 INFO L226 Difference]: Without dead ends: 1464 [2024-11-11 23:51:14,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:51:14,020 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 704 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:14,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2233 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-11 23:51:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1460. [2024-11-11 23:51:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1446 states have (on average 1.3084370677731674) internal successors, (1892), 1446 states have internal predecessors, (1892), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 1916 transitions. [2024-11-11 23:51:14,044 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 1916 transitions. Word has length 484 [2024-11-11 23:51:14,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:14,044 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 1916 transitions. [2024-11-11 23:51:14,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-11 23:51:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 1916 transitions. [2024-11-11 23:51:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-11 23:51:14,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:14,047 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:14,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-11 23:51:14,047 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:14,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash -79245256, now seen corresponding path program 1 times [2024-11-11 23:51:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:14,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51835687] [2024-11-11 23:51:14,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 23:51:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 23:51:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 23:51:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-11 23:51:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-11 23:51:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-11-11 23:51:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-11 23:51:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:51:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51835687] [2024-11-11 23:51:15,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51835687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 23:51:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330461317] [2024-11-11 23:51:15,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:15,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 23:51:15,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:51:15,726 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) [2024-11-11 23:51:15,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 23:51:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:51:17,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-11 23:51:17,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 23:51:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 113 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-11 23:51:18,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 23:51:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-11 23:51:18,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330461317] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-11 23:51:18,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-11 23:51:18,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 9] total 19 [2024-11-11 23:51:18,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927760664] [2024-11-11 23:51:18,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:51:18,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:51:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:51:18,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:51:18,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-11 23:51:18,366 INFO L87 Difference]: Start difference. First operand 1460 states and 1916 transitions. Second operand has 9 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-11 23:51:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:51:18,795 INFO L93 Difference]: Finished difference Result 2620 states and 3410 transitions. [2024-11-11 23:51:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:51:18,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 486 [2024-11-11 23:51:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:51:18,798 INFO L225 Difference]: With dead ends: 2620 [2024-11-11 23:51:18,798 INFO L226 Difference]: Without dead ends: 1464 [2024-11-11 23:51:18,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 976 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-11 23:51:18,799 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 738 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:51:18,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2254 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 23:51:18,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-11 23:51:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1464. [2024-11-11 23:51:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1450 states have (on average 1.3075862068965518) internal successors, (1896), 1450 states have internal predecessors, (1896), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-11 23:51:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1920 transitions. [2024-11-11 23:51:18,821 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1920 transitions. Word has length 486 [2024-11-11 23:51:18,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:51:18,821 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1920 transitions. [2024-11-11 23:51:18,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-11 23:51:18,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1920 transitions. [2024-11-11 23:51:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-11 23:51:18,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:51:18,824 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:51:18,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 23:51:19,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-11 23:51:19,029 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:51:19,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:51:19,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1717535872, now seen corresponding path program 1 times [2024-11-11 23:51:19,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:51:19,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256570509] [2024-11-11 23:51:19,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:51:19,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:51:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat