./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33e0a789597382a31147e3473eca939384c88c4f131feb04f2abaaba75adfc69 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:51:09,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:51:09,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:51:09,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:51:09,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:51:09,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:51:09,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:51:09,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:51:09,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:51:09,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:51:09,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:51:09,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:51:09,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:51:09,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:51:09,174 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:51:09,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:51:09,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:51:09,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:51:09,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:51:09,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:51:09,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:51:09,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:51:09,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:51:09,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:51:09,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:51:09,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:51:09,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:51:09,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:51:09,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:51:09,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:51:09,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:51:09,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:51:09,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:51:09,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:51:09,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:51:09,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:51:09,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:51:09,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:51:09,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:51:09,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:51:09,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:51:09,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:51:09,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33e0a789597382a31147e3473eca939384c88c4f131feb04f2abaaba75adfc69 [2024-11-18 19:51:09,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:51:09,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:51:09,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:51:09,517 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:51:09,518 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:51:09,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-18 19:51:11,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:51:11,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:51:11,383 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-18 19:51:11,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007cc6685/87fd964aaf5f4b0ebf7ce41ccad3a131/FLAG945f0024b [2024-11-18 19:51:11,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007cc6685/87fd964aaf5f4b0ebf7ce41ccad3a131 [2024-11-18 19:51:11,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:51:11,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:51:11,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:51:11,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:51:11,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:51:11,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:11" (1/1) ... [2024-11-18 19:51:11,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3725ad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:11, skipping insertion in model container [2024-11-18 19:51:11,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:11" (1/1) ... [2024-11-18 19:51:11,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:51:11,965 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i[916,929] [2024-11-18 19:51:12,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:51:12,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:51:12,243 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-30.i[916,929] [2024-11-18 19:51:12,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:51:12,393 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:51:12,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12 WrapperNode [2024-11-18 19:51:12,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:51:12,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:51:12,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:51:12,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:51:12,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,522 INFO L138 Inliner]: procedures = 26, calls = 125, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 940 [2024-11-18 19:51:12,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:51:12,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:51:12,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:51:12,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:51:12,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,603 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]. [2024-11-18 19:51:12,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:51:12,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:51:12,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:51:12,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:51:12,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (1/1) ... [2024-11-18 19:51:12,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:51:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:51:12,724 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) [2024-11-18 19:51:12,728 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 [2024-11-18 19:51:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:51:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:51:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:51:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:51:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:51:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:51:12,937 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:51:12,939 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:51:14,457 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 19:51:14,458 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:51:14,487 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:51:14,488 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:51:14,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:14 BoogieIcfgContainer [2024-11-18 19:51:14,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:51:14,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:51:14,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:51:14,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:51:14,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:51:11" (1/3) ... [2024-11-18 19:51:14,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bddf37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:14, skipping insertion in model container [2024-11-18 19:51:14,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:12" (2/3) ... [2024-11-18 19:51:14,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bddf37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:14, skipping insertion in model container [2024-11-18 19:51:14,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:14" (3/3) ... [2024-11-18 19:51:14,498 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-30.i [2024-11-18 19:51:14,516 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:51:14,517 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:51:14,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:51:14,608 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;@6ec9eff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:51:14,608 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:51:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 265 states have (on average 1.5811320754716982) internal successors, (419), 266 states have internal predecessors, (419), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-18 19:51:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 19:51:14,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:14,653 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:14,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:14,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1828025214, now seen corresponding path program 1 times [2024-11-18 19:51:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694965606] [2024-11-18 19:51:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:14,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 24642 trivial. 0 not checked. [2024-11-18 19:51:15,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:15,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694965606] [2024-11-18 19:51:15,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694965606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:51:15,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084766598] [2024-11-18 19:51:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:15,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:51:15,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:51:15,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:51:15,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:51:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:16,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:51:16,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:51:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24642 trivial. 0 not checked. [2024-11-18 19:51:16,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:51:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084766598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:51:16,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:51:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397635094] [2024-11-18 19:51:16,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:16,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:51:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:16,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:51:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:51:16,254 INFO L87 Difference]: Start difference. First operand has 380 states, 265 states have (on average 1.5811320754716982) internal successors, (419), 266 states have internal predecessors, (419), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) [2024-11-18 19:51:16,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:16,352 INFO L93 Difference]: Finished difference Result 753 states and 1392 transitions. [2024-11-18 19:51:16,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:51:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) Word has length 724 [2024-11-18 19:51:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:16,366 INFO L225 Difference]: With dead ends: 753 [2024-11-18 19:51:16,366 INFO L226 Difference]: Without dead ends: 376 [2024-11-18 19:51:16,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:51:16,383 INFO L432 NwaCegarLoop]: 633 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, 633 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 [2024-11-18 19:51:16,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:16,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-18 19:51:16,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-11-18 19:51:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 262 states have (on average 1.5610687022900764) internal successors, (409), 262 states have internal predecessors, (409), 112 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-18 19:51:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 633 transitions. [2024-11-18 19:51:16,501 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 633 transitions. Word has length 724 [2024-11-18 19:51:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:16,504 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 633 transitions. [2024-11-18 19:51:16,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 2 states have call successors, (112) [2024-11-18 19:51:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 633 transitions. [2024-11-18 19:51:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 19:51:16,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:16,525 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:16,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 19:51:16,729 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,SelfDestructingSolverStorable0 [2024-11-18 19:51:16,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:16,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:16,732 INFO L85 PathProgramCache]: Analyzing trace with hash 890886790, now seen corresponding path program 1 times [2024-11-18 19:51:16,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:16,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121836913] [2024-11-18 19:51:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:18,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121836913] [2024-11-18 19:51:18,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121836913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:18,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:18,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496267066] [2024-11-18 19:51:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:18,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:18,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:18,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:18,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:18,089 INFO L87 Difference]: Start difference. First operand 376 states and 633 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:18,677 INFO L93 Difference]: Finished difference Result 1123 states and 1895 transitions. [2024-11-18 19:51:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-18 19:51:18,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:18,695 INFO L225 Difference]: With dead ends: 1123 [2024-11-18 19:51:18,697 INFO L226 Difference]: Without dead ends: 750 [2024-11-18 19:51:18,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:18,701 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 433 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:18,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1641 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:51:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-18 19:51:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 748. [2024-11-18 19:51:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 521 states have (on average 1.562380038387716) internal successors, (814), 521 states have internal predecessors, (814), 224 states have call successors, (224), 2 states have call predecessors, (224), 2 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-18 19:51:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1262 transitions. [2024-11-18 19:51:18,854 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1262 transitions. Word has length 724 [2024-11-18 19:51:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:18,856 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1262 transitions. [2024-11-18 19:51:18,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1262 transitions. [2024-11-18 19:51:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 19:51:18,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:18,864 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:18,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:51:18,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:18,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:18,866 INFO L85 PathProgramCache]: Analyzing trace with hash 917952392, now seen corresponding path program 1 times [2024-11-18 19:51:18,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:18,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950442036] [2024-11-18 19:51:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:18,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:19,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950442036] [2024-11-18 19:51:19,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950442036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:19,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:19,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816333333] [2024-11-18 19:51:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:19,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:19,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:19,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:19,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:19,365 INFO L87 Difference]: Start difference. First operand 748 states and 1262 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:19,468 INFO L93 Difference]: Finished difference Result 1989 states and 3343 transitions. [2024-11-18 19:51:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:19,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-18 19:51:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:19,488 INFO L225 Difference]: With dead ends: 1989 [2024-11-18 19:51:19,488 INFO L226 Difference]: Without dead ends: 1244 [2024-11-18 19:51:19,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:19,494 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 400 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:19,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1244 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-11-18 19:51:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1240. [2024-11-18 19:51:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 845 states have (on average 1.5349112426035503) internal successors, (1297), 847 states have internal predecessors, (1297), 390 states have call successors, (390), 4 states have call predecessors, (390), 4 states have return successors, (390), 388 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-18 19:51:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2077 transitions. [2024-11-18 19:51:19,693 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2077 transitions. Word has length 724 [2024-11-18 19:51:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:19,695 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 2077 transitions. [2024-11-18 19:51:19,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2077 transitions. [2024-11-18 19:51:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 19:51:19,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:19,706 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:19,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:51:19,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:19,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:19,707 INFO L85 PathProgramCache]: Analyzing trace with hash -252784440, now seen corresponding path program 1 times [2024-11-18 19:51:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55026349] [2024-11-18 19:51:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:19,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:20,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55026349] [2024-11-18 19:51:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55026349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:20,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:20,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:20,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752281991] [2024-11-18 19:51:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:20,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:20,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:20,119 INFO L87 Difference]: Start difference. First operand 1240 states and 2077 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:20,278 INFO L93 Difference]: Finished difference Result 3401 states and 5692 transitions. [2024-11-18 19:51:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:20,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 724 [2024-11-18 19:51:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:20,294 INFO L225 Difference]: With dead ends: 3401 [2024-11-18 19:51:20,295 INFO L226 Difference]: Without dead ends: 2164 [2024-11-18 19:51:20,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:20,300 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 368 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:20,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1431 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2024-11-18 19:51:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2158. [2024-11-18 19:51:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2158 states, 1487 states have (on average 1.535305985205111) internal successors, (2283), 1493 states have internal predecessors, (2283), 662 states have call successors, (662), 8 states have call predecessors, (662), 8 states have return successors, (662), 656 states have call predecessors, (662), 662 states have call successors, (662) [2024-11-18 19:51:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2158 states to 2158 states and 3607 transitions. [2024-11-18 19:51:20,507 INFO L78 Accepts]: Start accepts. Automaton has 2158 states and 3607 transitions. Word has length 724 [2024-11-18 19:51:20,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:20,509 INFO L471 AbstractCegarLoop]: Abstraction has 2158 states and 3607 transitions. [2024-11-18 19:51:20,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2158 states and 3607 transitions. [2024-11-18 19:51:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:20,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:20,517 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:20,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:51:20,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:20,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1147910086, now seen corresponding path program 1 times [2024-11-18 19:51:20,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:20,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872070162] [2024-11-18 19:51:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:21,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872070162] [2024-11-18 19:51:21,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872070162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:21,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:21,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028012986] [2024-11-18 19:51:21,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:21,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:21,104 INFO L87 Difference]: Start difference. First operand 2158 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:21,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:21,270 INFO L93 Difference]: Finished difference Result 5596 states and 9377 transitions. [2024-11-18 19:51:21,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:21,295 INFO L225 Difference]: With dead ends: 5596 [2024-11-18 19:51:21,295 INFO L226 Difference]: Without dead ends: 3441 [2024-11-18 19:51:21,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:21,306 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 306 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:21,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1339 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2024-11-18 19:51:21,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3431. [2024-11-18 19:51:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 2608 states have (on average 1.5858895705521472) internal successors, (4136), 2622 states have internal predecessors, (4136), 806 states have call successors, (806), 16 states have call predecessors, (806), 16 states have return successors, (806), 792 states have call predecessors, (806), 806 states have call successors, (806) [2024-11-18 19:51:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 5748 transitions. [2024-11-18 19:51:21,597 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 5748 transitions. Word has length 725 [2024-11-18 19:51:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:21,598 INFO L471 AbstractCegarLoop]: Abstraction has 3431 states and 5748 transitions. [2024-11-18 19:51:21,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 5748 transitions. [2024-11-18 19:51:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:21,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:21,608 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:21,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:51:21,609 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:21,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash 638436996, now seen corresponding path program 1 times [2024-11-18 19:51:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:21,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235177700] [2024-11-18 19:51:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:21,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:21,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:21,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235177700] [2024-11-18 19:51:21,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235177700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:21,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:21,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:51:21,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198509055] [2024-11-18 19:51:21,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:21,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:51:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:21,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:51:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:21,899 INFO L87 Difference]: Start difference. First operand 3431 states and 5748 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:22,206 INFO L93 Difference]: Finished difference Result 10287 states and 17238 transitions. [2024-11-18 19:51:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:51:22,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:22,254 INFO L225 Difference]: With dead ends: 10287 [2024-11-18 19:51:22,254 INFO L226 Difference]: Without dead ends: 6859 [2024-11-18 19:51:22,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:51:22,270 INFO L432 NwaCegarLoop]: 1182 mSDtfsCounter, 613 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:22,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1807 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2024-11-18 19:51:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6857. [2024-11-18 19:51:22,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6857 states, 5212 states have (on average 1.5771297006907137) internal successors, (8220), 5240 states have internal predecessors, (8220), 1612 states have call successors, (1612), 32 states have call predecessors, (1612), 32 states have return successors, (1612), 1584 states have call predecessors, (1612), 1612 states have call successors, (1612) [2024-11-18 19:51:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 11444 transitions. [2024-11-18 19:51:22,881 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 11444 transitions. Word has length 725 [2024-11-18 19:51:22,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:22,883 INFO L471 AbstractCegarLoop]: Abstraction has 6857 states and 11444 transitions. [2024-11-18 19:51:22,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 11444 transitions. [2024-11-18 19:51:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:22,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:22,897 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:22,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:51:22,897 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:22,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1355707710, now seen corresponding path program 1 times [2024-11-18 19:51:22,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:22,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473055286] [2024-11-18 19:51:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:23,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:23,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473055286] [2024-11-18 19:51:23,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473055286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:23,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200746350] [2024-11-18 19:51:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:23,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:23,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:23,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:23,566 INFO L87 Difference]: Start difference. First operand 6857 states and 11444 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:24,524 INFO L93 Difference]: Finished difference Result 17157 states and 28632 transitions. [2024-11-18 19:51:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:24,631 INFO L225 Difference]: With dead ends: 17157 [2024-11-18 19:51:24,631 INFO L226 Difference]: Without dead ends: 10303 [2024-11-18 19:51:24,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:24,664 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 388 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:24,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1632 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:51:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2024-11-18 19:51:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 10301. [2024-11-18 19:51:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 7834 states have (on average 1.5749297932090887) internal successors, (12338), 7876 states have internal predecessors, (12338), 2418 states have call successors, (2418), 48 states have call predecessors, (2418), 48 states have return successors, (2418), 2376 states have call predecessors, (2418), 2418 states have call successors, (2418) [2024-11-18 19:51:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 17174 transitions. [2024-11-18 19:51:25,716 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 17174 transitions. Word has length 725 [2024-11-18 19:51:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:25,721 INFO L471 AbstractCegarLoop]: Abstraction has 10301 states and 17174 transitions. [2024-11-18 19:51:25,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 17174 transitions. [2024-11-18 19:51:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:25,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:25,735 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:25,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:51:25,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:25,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1428094268, now seen corresponding path program 1 times [2024-11-18 19:51:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:25,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384517073] [2024-11-18 19:51:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:26,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:26,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384517073] [2024-11-18 19:51:26,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384517073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:26,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:26,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:26,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504693168] [2024-11-18 19:51:26,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:26,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:26,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:26,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:26,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:26,291 INFO L87 Difference]: Start difference. First operand 10301 states and 17174 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:26,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:26,798 INFO L93 Difference]: Finished difference Result 20659 states and 34429 transitions. [2024-11-18 19:51:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:26,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:26,874 INFO L225 Difference]: With dead ends: 20659 [2024-11-18 19:51:26,875 INFO L226 Difference]: Without dead ends: 10361 [2024-11-18 19:51:26,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:26,920 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 3 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:26,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:51:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2024-11-18 19:51:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 10361. [2024-11-18 19:51:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10361 states, 7894 states have (on average 1.5720800608056753) internal successors, (12410), 7936 states have internal predecessors, (12410), 2418 states have call successors, (2418), 48 states have call predecessors, (2418), 48 states have return successors, (2418), 2376 states have call predecessors, (2418), 2418 states have call successors, (2418) [2024-11-18 19:51:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10361 states to 10361 states and 17246 transitions. [2024-11-18 19:51:27,998 INFO L78 Accepts]: Start accepts. Automaton has 10361 states and 17246 transitions. Word has length 725 [2024-11-18 19:51:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:28,000 INFO L471 AbstractCegarLoop]: Abstraction has 10361 states and 17246 transitions. [2024-11-18 19:51:28,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10361 states and 17246 transitions. [2024-11-18 19:51:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:28,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:28,020 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:28,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:51:28,020 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:28,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:28,021 INFO L85 PathProgramCache]: Analyzing trace with hash -540871422, now seen corresponding path program 1 times [2024-11-18 19:51:28,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:28,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115641053] [2024-11-18 19:51:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:28,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:29,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115641053] [2024-11-18 19:51:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115641053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:29,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:29,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:29,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863002532] [2024-11-18 19:51:29,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:29,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:29,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:29,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:29,022 INFO L87 Difference]: Start difference. First operand 10361 states and 17246 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:30,028 INFO L93 Difference]: Finished difference Result 25921 states and 43167 transitions. [2024-11-18 19:51:30,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:30,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:30,138 INFO L225 Difference]: With dead ends: 25921 [2024-11-18 19:51:30,138 INFO L226 Difference]: Without dead ends: 15563 [2024-11-18 19:51:30,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:30,195 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 1427 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:30,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 2406 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:51:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15563 states. [2024-11-18 19:51:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15563 to 15539. [2024-11-18 19:51:31,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 11839 states have (on average 1.5691359067488808) internal successors, (18577), 11902 states have internal predecessors, (18577), 3627 states have call successors, (3627), 72 states have call predecessors, (3627), 72 states have return successors, (3627), 3564 states have call predecessors, (3627), 3627 states have call successors, (3627) [2024-11-18 19:51:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 25831 transitions. [2024-11-18 19:51:31,689 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 25831 transitions. Word has length 725 [2024-11-18 19:51:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:31,690 INFO L471 AbstractCegarLoop]: Abstraction has 15539 states and 25831 transitions. [2024-11-18 19:51:31,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 25831 transitions. [2024-11-18 19:51:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-18 19:51:31,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:31,707 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:31,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:51:31,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:31,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:31,708 INFO L85 PathProgramCache]: Analyzing trace with hash 885686916, now seen corresponding path program 1 times [2024-11-18 19:51:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:31,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528691109] [2024-11-18 19:51:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:31,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:32,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:32,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528691109] [2024-11-18 19:51:32,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528691109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:32,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:32,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:32,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54008761] [2024-11-18 19:51:32,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:32,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:32,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:32,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:32,482 INFO L87 Difference]: Start difference. First operand 15539 states and 25831 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:34,229 INFO L93 Difference]: Finished difference Result 48413 states and 80440 transitions. [2024-11-18 19:51:34,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 725 [2024-11-18 19:51:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:34,406 INFO L225 Difference]: With dead ends: 48413 [2024-11-18 19:51:34,406 INFO L226 Difference]: Without dead ends: 32877 [2024-11-18 19:51:34,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:34,465 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 663 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:34,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1913 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:51:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32877 states. [2024-11-18 19:51:37,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32877 to 31073. [2024-11-18 19:51:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31073 states, 23674 states have (on average 1.5601081355073076) internal successors, (36934), 23800 states have internal predecessors, (36934), 7254 states have call successors, (7254), 144 states have call predecessors, (7254), 144 states have return successors, (7254), 7128 states have call predecessors, (7254), 7254 states have call successors, (7254) [2024-11-18 19:51:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31073 states to 31073 states and 51442 transitions. [2024-11-18 19:51:37,805 INFO L78 Accepts]: Start accepts. Automaton has 31073 states and 51442 transitions. Word has length 725 [2024-11-18 19:51:37,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:37,807 INFO L471 AbstractCegarLoop]: Abstraction has 31073 states and 51442 transitions. [2024-11-18 19:51:37,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 31073 states and 51442 transitions. [2024-11-18 19:51:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-18 19:51:37,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:37,823 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:37,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:51:37,824 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:37,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -209217629, now seen corresponding path program 1 times [2024-11-18 19:51:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:37,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208084910] [2024-11-18 19:51:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:39,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:39,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208084910] [2024-11-18 19:51:39,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208084910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902275223] [2024-11-18 19:51:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:39,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:39,213 INFO L87 Difference]: Start difference. First operand 31073 states and 51442 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:43,459 INFO L93 Difference]: Finished difference Result 138601 states and 229538 transitions. [2024-11-18 19:51:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:43,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 726 [2024-11-18 19:51:43,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:44,117 INFO L225 Difference]: With dead ends: 138601 [2024-11-18 19:51:44,117 INFO L226 Difference]: Without dead ends: 107531 [2024-11-18 19:51:44,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:44,249 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 1168 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:44,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2441 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:51:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107531 states. [2024-11-18 19:51:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107531 to 107381. [2024-11-18 19:51:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107381 states, 86536 states have (on average 1.5846352962928723) internal successors, (137128), 87076 states have internal predecessors, (137128), 20268 states have call successors, (20268), 576 states have call predecessors, (20268), 576 states have return successors, (20268), 19728 states have call predecessors, (20268), 20268 states have call successors, (20268) [2024-11-18 19:51:51,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107381 states to 107381 states and 177664 transitions. [2024-11-18 19:51:51,148 INFO L78 Accepts]: Start accepts. Automaton has 107381 states and 177664 transitions. Word has length 726 [2024-11-18 19:51:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:51,150 INFO L471 AbstractCegarLoop]: Abstraction has 107381 states and 177664 transitions. [2024-11-18 19:51:51,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 107381 states and 177664 transitions. [2024-11-18 19:51:51,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-18 19:51:51,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:51,200 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:51,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:51:51,201 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:51,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -415343648, now seen corresponding path program 1 times [2024-11-18 19:51:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:51,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610624839] [2024-11-18 19:51:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:51:52,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:52,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610624839] [2024-11-18 19:51:52,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610624839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:52,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:51:52,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996761124] [2024-11-18 19:51:52,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:51:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:52,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:51:52,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:51:52,891 INFO L87 Difference]: Start difference. First operand 107381 states and 177664 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, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:51:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:58,089 INFO L93 Difference]: Finished difference Result 258565 states and 427484 transitions. [2024-11-18 19:51:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:51:58,090 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, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) Word has length 727 [2024-11-18 19:51:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:59,261 INFO L225 Difference]: With dead ends: 258565 [2024-11-18 19:51:59,261 INFO L226 Difference]: Without dead ends: 151187 [2024-11-18 19:51:59,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:51:59,653 INFO L432 NwaCegarLoop]: 900 mSDtfsCounter, 1193 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:59,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 3602 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:51:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151187 states. [2024-11-18 19:52:05,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151187 to 110621. [2024-11-18 19:52:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110621 states, 89776 states have (on average 1.5912047763322046) internal successors, (142852), 90316 states have internal predecessors, (142852), 20268 states have call successors, (20268), 576 states have call predecessors, (20268), 576 states have return successors, (20268), 19728 states have call predecessors, (20268), 20268 states have call successors, (20268) [2024-11-18 19:52:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110621 states to 110621 states and 183388 transitions. [2024-11-18 19:52:06,494 INFO L78 Accepts]: Start accepts. Automaton has 110621 states and 183388 transitions. Word has length 727 [2024-11-18 19:52:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:06,495 INFO L471 AbstractCegarLoop]: Abstraction has 110621 states and 183388 transitions. [2024-11-18 19:52:06,496 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, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 1 states have call predecessors, (112), 1 states have call successors, (112) [2024-11-18 19:52:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 110621 states and 183388 transitions. [2024-11-18 19:52:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-18 19:52:06,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:06,541 INFO L215 NwaCegarLoop]: trace histogram [112, 112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:52:06,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:52:06,541 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:06,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash -832740254, now seen corresponding path program 1 times [2024-11-18 19:52:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:06,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118603255] [2024-11-18 19:52:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:06,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 24864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2024-11-18 19:52:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118603255] [2024-11-18 19:52:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118603255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:52:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426518219] [2024-11-18 19:52:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:52:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:52:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:52:09,735 INFO L87 Difference]: Start difference. First operand 110621 states and 183388 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (112), 1 states have call predecessors, (112), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112)