./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_operatoramount_amount500_file-82.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 17ab865f0f00c0e81e7df8c769539048861e387663f5be28b491c6160e2a443b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:05:25,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:05:25,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:05:25,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:05:25,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:05:25,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:05:25,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:05:25,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:05:25,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:05:25,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:05:25,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:05:25,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:05:25,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:05:25,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:05:25,735 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:05:25,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:05:25,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:05:25,736 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:05:25,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:05:25,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:05:25,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:05:25,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:05:25,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:05:25,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:05:25,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:05:25,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:05:25,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:05:25,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:05:25,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:05:25,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:05:25,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:05:25,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:05:25,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:05:25,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:05:25,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:05:25,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:05:25,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:05:25,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17ab865f0f00c0e81e7df8c769539048861e387663f5be28b491c6160e2a443b [2024-11-22 12:05:25,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:05:26,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:05:26,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:05:26,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:05:26,021 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:05:26,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.i [2024-11-22 12:05:27,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:05:27,712 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:05:27,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.i [2024-11-22 12:05:27,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d9213ac/ea5d8362f17f46cea5e758cce08106a7/FLAGf3e6e3f53 [2024-11-22 12:05:28,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d9213ac/ea5d8362f17f46cea5e758cce08106a7 [2024-11-22 12:05:28,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:05:28,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:05:28,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:05:28,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:05:28,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:05:28,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:28,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38032ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28, skipping insertion in model container [2024-11-22 12:05:28,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:28,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:05:28,371 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_operatoramount_amount500_file-82.i[916,929] [2024-11-22 12:05:28,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:05:28,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:05:28,609 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_operatoramount_amount500_file-82.i[916,929] [2024-11-22 12:05:28,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:05:28,698 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:05:28,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28 WrapperNode [2024-11-22 12:05:28,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:05:28,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:05:28,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:05:28,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:05:28,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:28,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:28,976 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 722 [2024-11-22 12:05:28,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:05:28,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:05:28,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:05:28,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:05:28,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:28,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,129 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]. [2024-11-22 12:05:29,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:05:29,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:05:29,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:05:29,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:05:29,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (1/1) ... [2024-11-22 12:05:29,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:05:29,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:29,287 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) [2024-11-22 12:05:29,295 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 [2024-11-22 12:05:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:05:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:05:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:05:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:05:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:05:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:05:29,446 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:05:29,448 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:05:30,330 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-22 12:05:30,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:05:30,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:05:30,343 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:05:30,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:05:30 BoogieIcfgContainer [2024-11-22 12:05:30,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:05:30,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:05:30,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:05:30,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:05:30,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:05:28" (1/3) ... [2024-11-22 12:05:30,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a71e951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:05:30, skipping insertion in model container [2024-11-22 12:05:30,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:05:28" (2/3) ... [2024-11-22 12:05:30,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a71e951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:05:30, skipping insertion in model container [2024-11-22 12:05:30,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:05:30" (3/3) ... [2024-11-22 12:05:30,349 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-82.i [2024-11-22 12:05:30,360 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:05:30,360 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:05:30,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:05:30,410 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;@74aeea1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:05:30,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:05:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 227 states have (on average 1.5594713656387664) internal successors, (354), 228 states have internal predecessors, (354), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:05:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-22 12:05:30,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:30,433 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:30,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:30,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1100393901, now seen corresponding path program 1 times [2024-11-22 12:05:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:30,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153756013] [2024-11-22 12:05:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:30,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2024-11-22 12:05:30,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:30,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153756013] [2024-11-22 12:05:30,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153756013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938805500] [2024-11-22 12:05:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:30,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:30,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:30,847 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) [2024-11-22 12:05:30,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:05:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:31,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:05:31,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2024-11-22 12:05:31,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:05:31,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938805500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:31,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:05:31,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:05:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000474860] [2024-11-22 12:05:31,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:31,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:05:31,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:31,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:05:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:05:31,184 INFO L87 Difference]: Start difference. First operand has 294 states, 227 states have (on average 1.5594713656387664) internal successors, (354), 228 states have internal predecessors, (354), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-22 12:05:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:31,229 INFO L93 Difference]: Finished difference Result 580 states and 1020 transitions. [2024-11-22 12:05:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:05:31,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) Word has length 442 [2024-11-22 12:05:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:31,240 INFO L225 Difference]: With dead ends: 580 [2024-11-22 12:05:31,240 INFO L226 Difference]: Without dead ends: 289 [2024-11-22 12:05:31,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:05:31,247 INFO L432 NwaCegarLoop]: 472 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, 472 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 [2024-11-22 12:05:31,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:05:31,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-22 12:05:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-22 12:05:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 223 states have (on average 1.5426008968609866) internal successors, (344), 223 states have internal predecessors, (344), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:05:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 472 transitions. [2024-11-22 12:05:31,315 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 472 transitions. Word has length 442 [2024-11-22 12:05:31,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:31,316 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 472 transitions. [2024-11-22 12:05:31,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-22 12:05:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 472 transitions. [2024-11-22 12:05:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-22 12:05:31,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:31,326 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:31,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:05:31,527 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 [2024-11-22 12:05:31,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:31,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash 885534373, now seen corresponding path program 1 times [2024-11-22 12:05:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:31,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951666118] [2024-11-22 12:05:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:31,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:31,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:31,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951666118] [2024-11-22 12:05:31,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951666118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:31,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:31,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:05:31,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834847976] [2024-11-22 12:05:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:31,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:05:31,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:05:31,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:05:31,905 INFO L87 Difference]: Start difference. First operand 289 states and 472 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:31,933 INFO L93 Difference]: Finished difference Result 576 states and 943 transitions. [2024-11-22 12:05:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:05:31,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 442 [2024-11-22 12:05:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:31,937 INFO L225 Difference]: With dead ends: 576 [2024-11-22 12:05:31,937 INFO L226 Difference]: Without dead ends: 290 [2024-11-22 12:05:31,938 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 [2024-11-22 12:05:31,938 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:31,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:05:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-22 12:05:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-22 12:05:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 224 states have (on average 1.5401785714285714) internal successors, (345), 224 states have internal predecessors, (345), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 12:05:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 473 transitions. [2024-11-22 12:05:31,955 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 473 transitions. Word has length 442 [2024-11-22 12:05:31,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:31,956 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 473 transitions. [2024-11-22 12:05:31,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 473 transitions. [2024-11-22 12:05:31,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-22 12:05:31,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:31,962 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:31,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:05:31,962 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:31,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:31,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2022647513, now seen corresponding path program 1 times [2024-11-22 12:05:31,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:31,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728370346] [2024-11-22 12:05:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:31,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:32,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:32,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728370346] [2024-11-22 12:05:32,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728370346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:32,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:05:32,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009261520] [2024-11-22 12:05:32,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:32,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:05:32,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:32,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:05:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:05:32,230 INFO L87 Difference]: Start difference. First operand 290 states and 473 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:32,293 INFO L93 Difference]: Finished difference Result 815 states and 1327 transitions. [2024-11-22 12:05:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:05:32,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 442 [2024-11-22 12:05:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:32,302 INFO L225 Difference]: With dead ends: 815 [2024-11-22 12:05:32,303 INFO L226 Difference]: Without dead ends: 528 [2024-11-22 12:05:32,304 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 [2024-11-22 12:05:32,305 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 381 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:32,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1096 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:05:32,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-22 12:05:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 525. [2024-11-22 12:05:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 396 states have (on average 1.52020202020202) internal successors, (602), 397 states have internal predecessors, (602), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 12:05:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 854 transitions. [2024-11-22 12:05:32,357 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 854 transitions. Word has length 442 [2024-11-22 12:05:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:32,359 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 854 transitions. [2024-11-22 12:05:32,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 854 transitions. [2024-11-22 12:05:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-22 12:05:32,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:32,365 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:32,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:05:32,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:32,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash 733979753, now seen corresponding path program 1 times [2024-11-22 12:05:32,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:32,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148871387] [2024-11-22 12:05:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:32,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:32,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148871387] [2024-11-22 12:05:32,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148871387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:32,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:32,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:05:32,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800038679] [2024-11-22 12:05:32,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:32,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:05:32,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:32,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:05:32,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:05:32,886 INFO L87 Difference]: Start difference. First operand 525 states and 854 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-22 12:05:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:33,506 INFO L93 Difference]: Finished difference Result 2761 states and 4506 transitions. [2024-11-22 12:05:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:05:33,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) Word has length 442 [2024-11-22 12:05:33,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:33,517 INFO L225 Difference]: With dead ends: 2761 [2024-11-22 12:05:33,518 INFO L226 Difference]: Without dead ends: 2239 [2024-11-22 12:05:33,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:05:33,520 INFO L432 NwaCegarLoop]: 1052 mSDtfsCounter, 2196 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:33,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 2626 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:05:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2024-11-22 12:05:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 1735. [2024-11-22 12:05:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1285 states have (on average 1.5073929961089494) internal successors, (1937), 1288 states have internal predecessors, (1937), 442 states have call successors, (442), 7 states have call predecessors, (442), 7 states have return successors, (442), 439 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 12:05:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2821 transitions. [2024-11-22 12:05:33,670 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2821 transitions. Word has length 442 [2024-11-22 12:05:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:33,671 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2821 transitions. [2024-11-22 12:05:33,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-22 12:05:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2821 transitions. [2024-11-22 12:05:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-22 12:05:33,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:33,677 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:33,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:05:33,677 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:33,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2098753067, now seen corresponding path program 1 times [2024-11-22 12:05:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128791641] [2024-11-22 12:05:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:34,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:34,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128791641] [2024-11-22 12:05:34,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128791641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:34,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:34,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:34,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579721924] [2024-11-22 12:05:34,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:34,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:34,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:34,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:34,178 INFO L87 Difference]: Start difference. First operand 1735 states and 2821 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:34,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:34,497 INFO L93 Difference]: Finished difference Result 3873 states and 6307 transitions. [2024-11-22 12:05:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:05:34,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 443 [2024-11-22 12:05:34,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:34,507 INFO L225 Difference]: With dead ends: 3873 [2024-11-22 12:05:34,507 INFO L226 Difference]: Without dead ends: 2272 [2024-11-22 12:05:34,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:05:34,512 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 395 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:34,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1357 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:05:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2024-11-22 12:05:34,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1735. [2024-11-22 12:05:34,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1285 states have (on average 1.5066147859922179) internal successors, (1936), 1288 states have internal predecessors, (1936), 442 states have call successors, (442), 7 states have call predecessors, (442), 7 states have return successors, (442), 439 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 12:05:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2820 transitions. [2024-11-22 12:05:34,615 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2820 transitions. Word has length 443 [2024-11-22 12:05:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:34,616 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2820 transitions. [2024-11-22 12:05:34,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2820 transitions. [2024-11-22 12:05:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-22 12:05:34,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:34,620 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:34,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:05:34,621 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:34,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1698701845, now seen corresponding path program 1 times [2024-11-22 12:05:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:34,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695277701] [2024-11-22 12:05:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:34,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:34,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:34,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695277701] [2024-11-22 12:05:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695277701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:34,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:05:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741802804] [2024-11-22 12:05:34,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:34,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:05:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:34,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:05:34,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:05:34,870 INFO L87 Difference]: Start difference. First operand 1735 states and 2820 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:35,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:35,011 INFO L93 Difference]: Finished difference Result 3858 states and 6277 transitions. [2024-11-22 12:05:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:05:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 443 [2024-11-22 12:05:35,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:35,027 INFO L225 Difference]: With dead ends: 3858 [2024-11-22 12:05:35,027 INFO L226 Difference]: Without dead ends: 3336 [2024-11-22 12:05:35,030 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 [2024-11-22 12:05:35,031 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 323 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:35,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1082 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:05:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2024-11-22 12:05:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 1734. [2024-11-22 12:05:35,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1284 states have (on average 1.5062305295950156) internal successors, (1934), 1287 states have internal predecessors, (1934), 442 states have call successors, (442), 7 states have call predecessors, (442), 7 states have return successors, (442), 439 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 12:05:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2818 transitions. [2024-11-22 12:05:35,223 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2818 transitions. Word has length 443 [2024-11-22 12:05:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:35,224 INFO L471 AbstractCegarLoop]: Abstraction has 1734 states and 2818 transitions. [2024-11-22 12:05:35,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2818 transitions. [2024-11-22 12:05:35,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-22 12:05:35,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:35,229 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:35,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:05:35,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:35,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:35,230 INFO L85 PathProgramCache]: Analyzing trace with hash 744761687, now seen corresponding path program 1 times [2024-11-22 12:05:35,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:35,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524464632] [2024-11-22 12:05:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:35,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:35,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:35,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524464632] [2024-11-22 12:05:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524464632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:35,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:35,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:05:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254295460] [2024-11-22 12:05:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:35,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:05:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:05:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:05:35,800 INFO L87 Difference]: Start difference. First operand 1734 states and 2818 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:36,428 INFO L93 Difference]: Finished difference Result 3331 states and 5427 transitions. [2024-11-22 12:05:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:05:36,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 443 [2024-11-22 12:05:36,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:36,441 INFO L225 Difference]: With dead ends: 3331 [2024-11-22 12:05:36,441 INFO L226 Difference]: Without dead ends: 2809 [2024-11-22 12:05:36,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:05:36,444 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 622 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:36,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 2084 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:05:36,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2024-11-22 12:05:36,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 1950. [2024-11-22 12:05:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1500 states have (on average 1.534) internal successors, (2301), 1503 states have internal predecessors, (2301), 442 states have call successors, (442), 7 states have call predecessors, (442), 7 states have return successors, (442), 439 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 12:05:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 3185 transitions. [2024-11-22 12:05:36,640 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 3185 transitions. Word has length 443 [2024-11-22 12:05:36,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:36,640 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 3185 transitions. [2024-11-22 12:05:36,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 3185 transitions. [2024-11-22 12:05:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-22 12:05:36,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:36,644 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:36,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:05:36,645 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:36,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2037828009, now seen corresponding path program 1 times [2024-11-22 12:05:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:36,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45574931] [2024-11-22 12:05:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:37,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45574931] [2024-11-22 12:05:37,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45574931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:37,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:37,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:37,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725512877] [2024-11-22 12:05:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:37,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:37,498 INFO L87 Difference]: Start difference. First operand 1950 states and 3185 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:37,850 INFO L93 Difference]: Finished difference Result 4394 states and 7171 transitions. [2024-11-22 12:05:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:05:37,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 444 [2024-11-22 12:05:37,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:37,862 INFO L225 Difference]: With dead ends: 4394 [2024-11-22 12:05:37,862 INFO L226 Difference]: Without dead ends: 2559 [2024-11-22 12:05:37,866 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 [2024-11-22 12:05:37,867 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 481 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:37,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1351 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:05:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2024-11-22 12:05:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2419. [2024-11-22 12:05:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 1969 states have (on average 1.56272219400711) internal successors, (3077), 1972 states have internal predecessors, (3077), 442 states have call successors, (442), 7 states have call predecessors, (442), 7 states have return successors, (442), 439 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-22 12:05:37,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3961 transitions. [2024-11-22 12:05:37,993 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3961 transitions. Word has length 444 [2024-11-22 12:05:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:37,994 INFO L471 AbstractCegarLoop]: Abstraction has 2419 states and 3961 transitions. [2024-11-22 12:05:37,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3961 transitions. [2024-11-22 12:05:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-22 12:05:37,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:37,997 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:37,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:05:37,997 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:37,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2101739463, now seen corresponding path program 1 times [2024-11-22 12:05:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:37,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415060254] [2024-11-22 12:05:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415060254] [2024-11-22 12:05:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415060254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:38,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:38,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:05:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538117923] [2024-11-22 12:05:38,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:38,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:05:38,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:05:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:05:38,436 INFO L87 Difference]: Start difference. First operand 2419 states and 3961 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:39,075 INFO L93 Difference]: Finished difference Result 6612 states and 10782 transitions. [2024-11-22 12:05:39,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:05:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 445 [2024-11-22 12:05:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:39,097 INFO L225 Difference]: With dead ends: 6612 [2024-11-22 12:05:39,098 INFO L226 Difference]: Without dead ends: 4831 [2024-11-22 12:05:39,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:05:39,105 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 1013 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:39,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1557 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:05:39,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2024-11-22 12:05:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4823. [2024-11-22 12:05:39,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 4072 states have (on average 1.575147347740668) internal successors, (6414), 4081 states have internal predecessors, (6414), 734 states have call successors, (734), 16 states have call predecessors, (734), 16 states have return successors, (734), 725 states have call predecessors, (734), 734 states have call successors, (734) [2024-11-22 12:05:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 7882 transitions. [2024-11-22 12:05:39,418 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 7882 transitions. Word has length 445 [2024-11-22 12:05:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:39,419 INFO L471 AbstractCegarLoop]: Abstraction has 4823 states and 7882 transitions. [2024-11-22 12:05:39,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 7882 transitions. [2024-11-22 12:05:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-22 12:05:39,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:39,425 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:39,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:05:39,425 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:39,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1609113289, now seen corresponding path program 1 times [2024-11-22 12:05:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:39,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084627429] [2024-11-22 12:05:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:40,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084627429] [2024-11-22 12:05:40,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084627429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:40,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:40,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:05:40,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147049303] [2024-11-22 12:05:40,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:40,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:05:40,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:40,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:05:40,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:05:40,072 INFO L87 Difference]: Start difference. First operand 4823 states and 7882 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:40,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:40,936 INFO L93 Difference]: Finished difference Result 14303 states and 23296 transitions. [2024-11-22 12:05:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:05:40,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 445 [2024-11-22 12:05:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:40,991 INFO L225 Difference]: With dead ends: 14303 [2024-11-22 12:05:40,992 INFO L226 Difference]: Without dead ends: 10118 [2024-11-22 12:05:41,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:05:41,006 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 954 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:41,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 3149 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:05:41,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2024-11-22 12:05:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 7007. [2024-11-22 12:05:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 6190 states have (on average 1.598707592891761) internal successors, (9896), 6205 states have internal predecessors, (9896), 794 states have call successors, (794), 22 states have call predecessors, (794), 22 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2024-11-22 12:05:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 11484 transitions. [2024-11-22 12:05:41,297 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 11484 transitions. Word has length 445 [2024-11-22 12:05:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:41,298 INFO L471 AbstractCegarLoop]: Abstraction has 7007 states and 11484 transitions. [2024-11-22 12:05:41,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 11484 transitions. [2024-11-22 12:05:41,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-22 12:05:41,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:41,303 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:41,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:05:41,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:41,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:41,304 INFO L85 PathProgramCache]: Analyzing trace with hash 71059886, now seen corresponding path program 1 times [2024-11-22 12:05:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788423614] [2024-11-22 12:05:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:42,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:42,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788423614] [2024-11-22 12:05:42,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788423614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:42,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:42,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:42,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601327668] [2024-11-22 12:05:42,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:42,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:42,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:42,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:42,076 INFO L87 Difference]: Start difference. First operand 7007 states and 11484 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:42,515 INFO L93 Difference]: Finished difference Result 25564 states and 41990 transitions. [2024-11-22 12:05:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:05:42,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 446 [2024-11-22 12:05:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:42,577 INFO L225 Difference]: With dead ends: 25564 [2024-11-22 12:05:42,578 INFO L226 Difference]: Without dead ends: 18742 [2024-11-22 12:05:42,601 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 [2024-11-22 12:05:42,602 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 965 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:42,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1389 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:05:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18742 states. [2024-11-22 12:05:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18742 to 13402. [2024-11-22 12:05:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13402 states, 11835 states have (on average 1.5940008449514154) internal successors, (18865), 11865 states have internal predecessors, (18865), 1524 states have call successors, (1524), 42 states have call predecessors, (1524), 42 states have return successors, (1524), 1494 states have call predecessors, (1524), 1524 states have call successors, (1524) [2024-11-22 12:05:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13402 states to 13402 states and 21913 transitions. [2024-11-22 12:05:43,321 INFO L78 Accepts]: Start accepts. Automaton has 13402 states and 21913 transitions. Word has length 446 [2024-11-22 12:05:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:43,322 INFO L471 AbstractCegarLoop]: Abstraction has 13402 states and 21913 transitions. [2024-11-22 12:05:43,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13402 states and 21913 transitions. [2024-11-22 12:05:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-22 12:05:43,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:43,328 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:43,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:05:43,329 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:43,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2032634544, now seen corresponding path program 1 times [2024-11-22 12:05:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:43,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154886602] [2024-11-22 12:05:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:44,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:44,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154886602] [2024-11-22 12:05:44,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154886602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:44,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:44,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:44,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458951004] [2024-11-22 12:05:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:44,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:44,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:44,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:44,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:44,040 INFO L87 Difference]: Start difference. First operand 13402 states and 21913 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:44,737 INFO L93 Difference]: Finished difference Result 38304 states and 62561 transitions. [2024-11-22 12:05:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:05:44,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 446 [2024-11-22 12:05:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:44,814 INFO L225 Difference]: With dead ends: 38304 [2024-11-22 12:05:44,814 INFO L226 Difference]: Without dead ends: 26421 [2024-11-22 12:05:44,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:05:44,846 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 306 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:44,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1662 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:05:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26421 states. [2024-11-22 12:05:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26421 to 26367. [2024-11-22 12:05:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26367 states, 23300 states have (on average 1.5907296137339055) internal successors, (37064), 23360 states have internal predecessors, (37064), 2984 states have call successors, (2984), 82 states have call predecessors, (2984), 82 states have return successors, (2984), 2924 states have call predecessors, (2984), 2984 states have call successors, (2984) [2024-11-22 12:05:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26367 states to 26367 states and 43032 transitions. [2024-11-22 12:05:45,880 INFO L78 Accepts]: Start accepts. Automaton has 26367 states and 43032 transitions. Word has length 446 [2024-11-22 12:05:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:45,881 INFO L471 AbstractCegarLoop]: Abstraction has 26367 states and 43032 transitions. [2024-11-22 12:05:45,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:45,882 INFO L276 IsEmpty]: Start isEmpty. Operand 26367 states and 43032 transitions. [2024-11-22 12:05:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-22 12:05:45,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:45,894 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:45,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:05:45,894 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:45,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1821016753, now seen corresponding path program 1 times [2024-11-22 12:05:45,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:45,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539896920] [2024-11-22 12:05:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:45,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-11-22 12:05:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539896920] [2024-11-22 12:05:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539896920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:46,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:46,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:46,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199679510] [2024-11-22 12:05:46,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:46,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:46,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:46,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:46,619 INFO L87 Difference]: Start difference. First operand 26367 states and 43032 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:47,422 INFO L93 Difference]: Finished difference Result 73531 states and 119883 transitions. [2024-11-22 12:05:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:05:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 447 [2024-11-22 12:05:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:47,533 INFO L225 Difference]: With dead ends: 73531 [2024-11-22 12:05:47,533 INFO L226 Difference]: Without dead ends: 48283 [2024-11-22 12:05:47,578 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 [2024-11-22 12:05:47,579 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 258 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:47,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1318 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:05:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48283 states. [2024-11-22 12:05:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48283 to 48241. [2024-11-22 12:05:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48241 states, 44093 states have (on average 1.5982355475925885) internal successors, (70471), 44233 states have internal predecessors, (70471), 3984 states have call successors, (3984), 163 states have call predecessors, (3984), 163 states have return successors, (3984), 3844 states have call predecessors, (3984), 3984 states have call successors, (3984) [2024-11-22 12:05:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48241 states to 48241 states and 78439 transitions. [2024-11-22 12:05:48,906 INFO L78 Accepts]: Start accepts. Automaton has 48241 states and 78439 transitions. Word has length 447 [2024-11-22 12:05:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:48,907 INFO L471 AbstractCegarLoop]: Abstraction has 48241 states and 78439 transitions. [2024-11-22 12:05:48,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 48241 states and 78439 transitions. [2024-11-22 12:05:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-22 12:05:48,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:48,932 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:48,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:05:48,932 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:48,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1800519727, now seen corresponding path program 1 times [2024-11-22 12:05:48,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:48,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114772738] [2024-11-22 12:05:48,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:48,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 69 proven. 120 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:05:50,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:50,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114772738] [2024-11-22 12:05:50,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114772738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:50,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150987763] [2024-11-22 12:05:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:50,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:50,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:50,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:50,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:05:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:50,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:05:50,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 3789 proven. 120 refuted. 0 times theorem prover too weak. 4155 trivial. 0 not checked. [2024-11-22 12:05:51,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:05:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 69 proven. 120 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:05:51,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150987763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:05:51,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:05:51,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-22 12:05:51,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205747468] [2024-11-22 12:05:51,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:05:51,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:05:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:05:51,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:05:51,833 INFO L87 Difference]: Start difference. First operand 48241 states and 78439 transitions. Second operand has 8 states, 8 states have (on average 25.625) internal successors, (205), 8 states have internal predecessors, (205), 3 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 3 states have call predecessors, (145), 3 states have call successors, (145) [2024-11-22 12:05:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:53,064 INFO L93 Difference]: Finished difference Result 95905 states and 155813 transitions. [2024-11-22 12:05:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:05:53,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.625) internal successors, (205), 8 states have internal predecessors, (205), 3 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 3 states have call predecessors, (145), 3 states have call successors, (145) Word has length 448 [2024-11-22 12:05:53,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:53,190 INFO L225 Difference]: With dead ends: 95905 [2024-11-22 12:05:53,190 INFO L226 Difference]: Without dead ends: 48569 [2024-11-22 12:05:53,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:05:53,249 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 843 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:53,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1013 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:05:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48569 states. [2024-11-22 12:05:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48569 to 48405. [2024-11-22 12:05:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48405 states, 44216 states have (on average 1.5839062782703095) internal successors, (70034), 44356 states have internal predecessors, (70034), 3984 states have call successors, (3984), 204 states have call predecessors, (3984), 204 states have return successors, (3984), 3844 states have call predecessors, (3984), 3984 states have call successors, (3984) [2024-11-22 12:05:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48405 states to 48405 states and 78002 transitions. [2024-11-22 12:05:54,927 INFO L78 Accepts]: Start accepts. Automaton has 48405 states and 78002 transitions. Word has length 448 [2024-11-22 12:05:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:54,930 INFO L471 AbstractCegarLoop]: Abstraction has 48405 states and 78002 transitions. [2024-11-22 12:05:54,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.625) internal successors, (205), 8 states have internal predecessors, (205), 3 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 3 states have call predecessors, (145), 3 states have call successors, (145) [2024-11-22 12:05:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 48405 states and 78002 transitions. [2024-11-22 12:05:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-22 12:05:54,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:54,951 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:54,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:05:55,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 12:05:55,153 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:55,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 906796436, now seen corresponding path program 1 times [2024-11-22 12:05:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:55,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435589233] [2024-11-22 12:05:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:55,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 42 proven. 147 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:05:57,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435589233] [2024-11-22 12:05:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435589233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948721227] [2024-11-22 12:05:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:57,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:57,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:57,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:05:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:58,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:05:58,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:05:58,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:05:58,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948721227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:58,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:05:58,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-22 12:05:58,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218116432] [2024-11-22 12:05:58,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:58,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:05:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:05:58,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:05:58,300 INFO L87 Difference]: Start difference. First operand 48405 states and 78002 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:05:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:59,342 INFO L93 Difference]: Finished difference Result 68219 states and 109770 transitions. [2024-11-22 12:05:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:05:59,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) Word has length 449 [2024-11-22 12:05:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:59,404 INFO L225 Difference]: With dead ends: 68219 [2024-11-22 12:05:59,404 INFO L226 Difference]: Without dead ends: 25987 [2024-11-22 12:05:59,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:05:59,452 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 373 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:59,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1065 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:05:59,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25987 states. [2024-11-22 12:06:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25987 to 25861. [2024-11-22 12:06:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25861 states, 23691 states have (on average 1.5785319319572833) internal successors, (37397), 23751 states have internal predecessors, (37397), 2044 states have call successors, (2044), 125 states have call predecessors, (2044), 125 states have return successors, (2044), 1984 states have call predecessors, (2044), 2044 states have call successors, (2044) [2024-11-22 12:06:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25861 states to 25861 states and 41485 transitions. [2024-11-22 12:06:00,344 INFO L78 Accepts]: Start accepts. Automaton has 25861 states and 41485 transitions. Word has length 449 [2024-11-22 12:06:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:00,351 INFO L471 AbstractCegarLoop]: Abstraction has 25861 states and 41485 transitions. [2024-11-22 12:06:00,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2024-11-22 12:06:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 25861 states and 41485 transitions. [2024-11-22 12:06:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-22 12:06:00,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:00,385 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:00,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 12:06:00,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:06:00,586 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:00,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:00,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1381200272, now seen corresponding path program 1 times [2024-11-22 12:06:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:00,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408599206] [2024-11-22 12:06:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:00,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 69 proven. 120 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:06:01,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:01,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408599206] [2024-11-22 12:06:01,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408599206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:06:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939270459] [2024-11-22 12:06:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:01,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:06:01,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:06:01,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:06:01,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:06:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:02,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 12:06:02,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:06:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 3789 proven. 120 refuted. 0 times theorem prover too weak. 4155 trivial. 0 not checked. [2024-11-22 12:06:03,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:06:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 69 proven. 120 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:06:03,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939270459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:06:03,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:06:03,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 13 [2024-11-22 12:06:03,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745489441] [2024-11-22 12:06:03,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:06:03,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:06:03,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:06:03,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:06:03,511 INFO L87 Difference]: Start difference. First operand 25861 states and 41485 transitions. Second operand has 13 states, 13 states have (on average 23.076923076923077) internal successors, (300), 13 states have internal predecessors, (300), 5 states have call successors, (192), 3 states have call predecessors, (192), 6 states have return successors, (192), 5 states have call predecessors, (192), 5 states have call successors, (192) [2024-11-22 12:06:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:06,385 INFO L93 Difference]: Finished difference Result 79105 states and 127409 transitions. [2024-11-22 12:06:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 12:06:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 23.076923076923077) internal successors, (300), 13 states have internal predecessors, (300), 5 states have call successors, (192), 3 states have call predecessors, (192), 6 states have return successors, (192), 5 states have call predecessors, (192), 5 states have call successors, (192) Word has length 449 [2024-11-22 12:06:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:06,523 INFO L225 Difference]: With dead ends: 79105 [2024-11-22 12:06:06,523 INFO L226 Difference]: Without dead ends: 56637 [2024-11-22 12:06:06,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 892 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:06:06,567 INFO L432 NwaCegarLoop]: 1185 mSDtfsCounter, 1939 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:06,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2113 Valid, 5473 Invalid, 2551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 12:06:06,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56637 states. [2024-11-22 12:06:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56637 to 32437. [2024-11-22 12:06:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32437 states, 29679 states have (on average 1.576367128272516) internal successors, (46785), 29759 states have internal predecessors, (46785), 2592 states have call successors, (2592), 165 states have call predecessors, (2592), 165 states have return successors, (2592), 2512 states have call predecessors, (2592), 2592 states have call successors, (2592) [2024-11-22 12:06:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32437 states to 32437 states and 51969 transitions. [2024-11-22 12:06:08,161 INFO L78 Accepts]: Start accepts. Automaton has 32437 states and 51969 transitions. Word has length 449 [2024-11-22 12:06:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:08,162 INFO L471 AbstractCegarLoop]: Abstraction has 32437 states and 51969 transitions. [2024-11-22 12:06:08,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 23.076923076923077) internal successors, (300), 13 states have internal predecessors, (300), 5 states have call successors, (192), 3 states have call predecessors, (192), 6 states have return successors, (192), 5 states have call predecessors, (192), 5 states have call successors, (192) [2024-11-22 12:06:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 32437 states and 51969 transitions. [2024-11-22 12:06:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-22 12:06:08,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:08,174 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:08,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 12:06:08,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 12:06:08,379 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:08,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1304299474, now seen corresponding path program 1 times [2024-11-22 12:06:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779692083] [2024-11-22 12:06:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 33 proven. 156 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:06:10,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:10,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779692083] [2024-11-22 12:06:10,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779692083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:06:10,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522514524] [2024-11-22 12:06:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:06:10,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:06:10,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:06:10,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 12:06:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:10,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 12:06:10,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:06:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 4300 proven. 78 refuted. 0 times theorem prover too weak. 3686 trivial. 0 not checked. [2024-11-22 12:06:11,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:06:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 111 proven. 78 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:06:11,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522514524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:06:11,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:06:11,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 20 [2024-11-22 12:06:11,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929280800] [2024-11-22 12:06:11,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:06:11,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 12:06:11,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:11,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 12:06:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:06:11,503 INFO L87 Difference]: Start difference. First operand 32437 states and 51969 transitions. Second operand has 20 states, 20 states have (on average 14.7) internal successors, (294), 20 states have internal predecessors, (294), 7 states have call successors, (157), 3 states have call predecessors, (157), 6 states have return successors, (157), 7 states have call predecessors, (157), 7 states have call successors, (157) [2024-11-22 12:06:14,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:14,604 INFO L93 Difference]: Finished difference Result 66297 states and 105768 transitions. [2024-11-22 12:06:14,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-22 12:06:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.7) internal successors, (294), 20 states have internal predecessors, (294), 7 states have call successors, (157), 3 states have call predecessors, (157), 6 states have return successors, (157), 7 states have call predecessors, (157), 7 states have call successors, (157) Word has length 449 [2024-11-22 12:06:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:14,679 INFO L225 Difference]: With dead ends: 66297 [2024-11-22 12:06:14,679 INFO L226 Difference]: Without dead ends: 34129 [2024-11-22 12:06:14,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 892 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=405, Invalid=1401, Unknown=0, NotChecked=0, Total=1806 [2024-11-22 12:06:14,725 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 3320 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3357 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:06:14,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3357 Valid, 3389 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 12:06:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34129 states. [2024-11-22 12:06:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34129 to 32541. [2024-11-22 12:06:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32541 states, 29757 states have (on average 1.5692106059078537) internal successors, (46695), 29837 states have internal predecessors, (46695), 2592 states have call successors, (2592), 191 states have call predecessors, (2592), 191 states have return successors, (2592), 2512 states have call predecessors, (2592), 2592 states have call successors, (2592) [2024-11-22 12:06:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32541 states to 32541 states and 51879 transitions. [2024-11-22 12:06:15,811 INFO L78 Accepts]: Start accepts. Automaton has 32541 states and 51879 transitions. Word has length 449 [2024-11-22 12:06:15,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:06:15,813 INFO L471 AbstractCegarLoop]: Abstraction has 32541 states and 51879 transitions. [2024-11-22 12:06:15,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.7) internal successors, (294), 20 states have internal predecessors, (294), 7 states have call successors, (157), 3 states have call predecessors, (157), 6 states have return successors, (157), 7 states have call predecessors, (157), 7 states have call successors, (157) [2024-11-22 12:06:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 32541 states and 51879 transitions. [2024-11-22 12:06:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-22 12:06:15,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:06:15,823 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:06:15,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 12:06:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 12:06:16,028 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:06:16,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:06:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash 212173055, now seen corresponding path program 1 times [2024-11-22 12:06:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:06:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058857385] [2024-11-22 12:06:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:06:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 42 proven. 147 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2024-11-22 12:06:18,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:06:18,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058857385] [2024-11-22 12:06:18,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058857385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:06:18,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864829517] [2024-11-22 12:06:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:06:18,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:06:18,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:06:18,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:06:18,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 12:06:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:06:18,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 12:06:18,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:06:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 1682 proven. 351 refuted. 0 times theorem prover too weak. 6031 trivial. 0 not checked. [2024-11-22 12:06:19,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:06:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 21 proven. 354 refuted. 0 times theorem prover too weak. 7689 trivial. 0 not checked. [2024-11-22 12:06:20,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864829517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:06:20,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:06:20,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 26 [2024-11-22 12:06:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930369616] [2024-11-22 12:06:20,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:06:20,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 12:06:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:06:20,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 12:06:20,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-22 12:06:20,257 INFO L87 Difference]: Start difference. First operand 32541 states and 51879 transitions. Second operand has 26 states, 26 states have (on average 11.26923076923077) internal successors, (293), 26 states have internal predecessors, (293), 7 states have call successors, (191), 3 states have call predecessors, (191), 7 states have return successors, (192), 6 states have call predecessors, (192), 7 states have call successors, (192) [2024-11-22 12:06:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:06:42,018 INFO L93 Difference]: Finished difference Result 388879 states and 621260 transitions. [2024-11-22 12:06:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2024-11-22 12:06:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.26923076923077) internal successors, (293), 26 states have internal predecessors, (293), 7 states have call successors, (191), 3 states have call predecessors, (191), 7 states have return successors, (192), 6 states have call predecessors, (192), 7 states have call successors, (192) Word has length 449 [2024-11-22 12:06:42,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:06:42,696 INFO L225 Difference]: With dead ends: 388879 [2024-11-22 12:06:42,696 INFO L226 Difference]: Without dead ends: 357367