./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.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_fillercode_fillercodesize_ps-cn-500_file-78.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 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:47:11,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:47:11,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:47:11,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:47:11,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:47:11,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:47:11,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:47:11,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:47:11,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:47:11,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:47:11,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:47:11,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:47:11,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:47:11,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:47:11,236 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:47:11,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:47:11,237 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:47:11,237 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:47:11,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:47:11,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:47:11,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:47:11,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:47:11,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:47:11,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:47:11,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:47:11,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:47:11,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:47:11,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:47:11,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:47:11,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:47:11,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:47:11,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:47:11,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:47:11,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:47:11,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:47:11,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:47:11,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:47:11,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:47:11,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:47:11,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:47:11,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:47:11,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:47:11,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 [2024-11-22 07:47:11,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:47:11,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:47:11,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:47:11,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:47:11,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:47:11,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-22 07:47:12,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:47:12,930 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:47:12,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-22 07:47:12,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a49757f3/01832ebcaae741638386df532232f9a9/FLAGec811ce63 [2024-11-22 07:47:12,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a49757f3/01832ebcaae741638386df532232f9a9 [2024-11-22 07:47:12,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:47:12,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:47:12,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:47:12,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:47:12,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:47:12,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:47:12" (1/1) ... [2024-11-22 07:47:12,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41328301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:12, skipping insertion in model container [2024-11-22 07:47:12,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:47:12" (1/1) ... [2024-11-22 07:47:13,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:47:13,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-11-22 07:47:13,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:47:13,379 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:47:13,389 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-11-22 07:47:13,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:47:13,482 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:47:13,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13 WrapperNode [2024-11-22 07:47:13,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:47:13,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:47:13,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:47:13,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:47:13,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,596 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 863 [2024-11-22 07:47:13,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:47:13,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:47:13,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:47:13,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:47:13,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,623 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,664 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 07:47:13,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:47:13,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:47:13,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:47:13,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:47:13,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (1/1) ... [2024-11-22 07:47:13,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:47:13,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:47:13,768 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 07:47:13,770 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 07:47:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:47:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:47:13,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:47:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:47:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:47:13,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:47:13,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:47:13,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:47:14,974 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-22 07:47:14,975 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:47:14,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:47:15,001 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:47:15,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:47:15 BoogieIcfgContainer [2024-11-22 07:47:15,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:47:15,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:47:15,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:47:15,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:47:15,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:47:12" (1/3) ... [2024-11-22 07:47:15,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c6a2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:47:15, skipping insertion in model container [2024-11-22 07:47:15,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:47:13" (2/3) ... [2024-11-22 07:47:15,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c6a2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:47:15, skipping insertion in model container [2024-11-22 07:47:15,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:47:15" (3/3) ... [2024-11-22 07:47:15,011 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-11-22 07:47:15,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:47:15,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:47:15,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:47:15,104 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;@55a8b072, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:47:15,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:47:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 07:47:15,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:15,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:15,151 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:15,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:15,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash 45808961, now seen corresponding path program 1 times [2024-11-22 07:47:15,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:15,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255527457] [2024-11-22 07:47:15,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:15,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-11-22 07:47:15,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:15,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255527457] [2024-11-22 07:47:15,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255527457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:47:15,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428252376] [2024-11-22 07:47:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:15,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:47:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:47:15,704 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 07:47:15,705 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 07:47:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:16,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:47:16,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:47:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-11-22 07:47:16,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:47:16,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428252376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:16,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:47:16,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:47:16,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084139640] [2024-11-22 07:47:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:16,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:47:16,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:47:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:47:16,163 INFO L87 Difference]: Start difference. First operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-22 07:47:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:16,232 INFO L93 Difference]: Finished difference Result 685 states and 1256 transitions. [2024-11-22 07:47:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:47:16,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-11-22 07:47:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:16,245 INFO L225 Difference]: With dead ends: 685 [2024-11-22 07:47:16,246 INFO L226 Difference]: Without dead ends: 338 [2024-11-22 07:47:16,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 623 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 07:47:16,254 INFO L432 NwaCegarLoop]: 569 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, 569 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 07:47:16,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:47:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-22 07:47:16,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-22 07:47:16,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 242 states have internal predecessors, (381), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 07:47:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 569 transitions. [2024-11-22 07:47:16,330 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 569 transitions. Word has length 622 [2024-11-22 07:47:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:16,331 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 569 transitions. [2024-11-22 07:47:16,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-22 07:47:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 569 transitions. [2024-11-22 07:47:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:16,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:16,343 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:16,353 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 07:47:16,544 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 07:47:16,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:16,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1804090051, now seen corresponding path program 1 times [2024-11-22 07:47:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:16,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029863955] [2024-11-22 07:47:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:16,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:16,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029863955] [2024-11-22 07:47:16,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029863955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:16,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:16,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:47:16,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255856821] [2024-11-22 07:47:16,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:16,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:47:16,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:16,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:47:16,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:47:16,976 INFO L87 Difference]: Start difference. First operand 338 states and 569 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:17,088 INFO L93 Difference]: Finished difference Result 895 states and 1514 transitions. [2024-11-22 07:47:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:47:17,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-22 07:47:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:17,094 INFO L225 Difference]: With dead ends: 895 [2024-11-22 07:47:17,094 INFO L226 Difference]: Without dead ends: 560 [2024-11-22 07:47:17,096 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 07:47:17,097 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 363 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:17,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1109 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:47:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-22 07:47:17,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2024-11-22 07:47:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 428 states have (on average 1.5981308411214954) internal successors, (684), 429 states have internal predecessors, (684), 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 07:47:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 936 transitions. [2024-11-22 07:47:17,156 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 936 transitions. Word has length 622 [2024-11-22 07:47:17,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:17,159 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 936 transitions. [2024-11-22 07:47:17,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 936 transitions. [2024-11-22 07:47:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:17,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:17,170 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:17,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:47:17,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:17,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 656735485, now seen corresponding path program 1 times [2024-11-22 07:47:17,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493647120] [2024-11-22 07:47:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:17,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:17,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493647120] [2024-11-22 07:47:17,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493647120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:17,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:17,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:17,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799483340] [2024-11-22 07:47:17,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:17,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:17,726 INFO L87 Difference]: Start difference. First operand 557 states and 936 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-22 07:47:17,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:17,956 INFO L93 Difference]: Finished difference Result 1484 states and 2488 transitions. [2024-11-22 07:47:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:47:17,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-11-22 07:47:17,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:17,967 INFO L225 Difference]: With dead ends: 1484 [2024-11-22 07:47:17,967 INFO L226 Difference]: Without dead ends: 930 [2024-11-22 07:47:17,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:17,970 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 801 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:17,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:47:17,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-11-22 07:47:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 928. [2024-11-22 07:47:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 703 states have (on average 1.5817923186344238) internal successors, (1112), 704 states have internal predecessors, (1112), 220 states have call successors, (220), 4 states have call predecessors, (220), 4 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-22 07:47:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1552 transitions. [2024-11-22 07:47:18,044 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1552 transitions. Word has length 622 [2024-11-22 07:47:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:18,045 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1552 transitions. [2024-11-22 07:47:18,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-11-22 07:47:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1552 transitions. [2024-11-22 07:47:18,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:18,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:18,055 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:18,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:47:18,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:18,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:18,056 INFO L85 PathProgramCache]: Analyzing trace with hash 602342587, now seen corresponding path program 1 times [2024-11-22 07:47:18,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:18,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306434192] [2024-11-22 07:47:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306434192] [2024-11-22 07:47:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306434192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:18,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:47:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736292469] [2024-11-22 07:47:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:47:18,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:18,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:47:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:47:18,524 INFO L87 Difference]: Start difference. First operand 928 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:19,941 INFO L93 Difference]: Finished difference Result 5209 states and 8685 transitions. [2024-11-22 07:47:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:47:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-22 07:47:19,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:19,964 INFO L225 Difference]: With dead ends: 5209 [2024-11-22 07:47:19,965 INFO L226 Difference]: Without dead ends: 4284 [2024-11-22 07:47:19,969 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 07:47:19,970 INFO L432 NwaCegarLoop]: 993 mSDtfsCounter, 2158 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2158 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:19,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2158 Valid, 3514 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 07:47:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2024-11-22 07:47:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 2437. [2024-11-22 07:47:20,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 1822 states have (on average 1.5697036223929748) internal successors, (2860), 1827 states have internal predecessors, (2860), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-22 07:47:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4064 transitions. [2024-11-22 07:47:20,247 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4064 transitions. Word has length 622 [2024-11-22 07:47:20,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:20,248 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 4064 transitions. [2024-11-22 07:47:20,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:20,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4064 transitions. [2024-11-22 07:47:20,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:20,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:20,253 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:20,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:47:20,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:20,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash 207975801, now seen corresponding path program 1 times [2024-11-22 07:47:20,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:20,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680749146] [2024-11-22 07:47:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:21,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680749146] [2024-11-22 07:47:21,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680749146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:21,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:47:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373614037] [2024-11-22 07:47:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:21,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:47:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:21,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:47:21,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:47:21,139 INFO L87 Difference]: Start difference. First operand 2437 states and 4064 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:21,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:21,328 INFO L93 Difference]: Finished difference Result 5180 states and 8604 transitions. [2024-11-22 07:47:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:47:21,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-22 07:47:21,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:21,345 INFO L225 Difference]: With dead ends: 5180 [2024-11-22 07:47:21,345 INFO L226 Difference]: Without dead ends: 2746 [2024-11-22 07:47:21,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:47:21,354 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 45 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:21,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2810 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:47:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-22 07:47:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2599. [2024-11-22 07:47:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5730846774193548) internal successors, (3121), 1989 states have internal predecessors, (3121), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-22 07:47:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4325 transitions. [2024-11-22 07:47:21,624 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4325 transitions. Word has length 622 [2024-11-22 07:47:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:21,625 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4325 transitions. [2024-11-22 07:47:21,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4325 transitions. [2024-11-22 07:47:21,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-22 07:47:21,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:21,630 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:21,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:47:21,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:21,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2092846789, now seen corresponding path program 1 times [2024-11-22 07:47:21,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:21,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617060727] [2024-11-22 07:47:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:21,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:21,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617060727] [2024-11-22 07:47:21,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617060727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:21,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:21,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:21,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426692192] [2024-11-22 07:47:21,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:21,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:21,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:21,994 INFO L87 Difference]: Start difference. First operand 2599 states and 4325 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:22,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:22,098 INFO L93 Difference]: Finished difference Result 5195 states and 8647 transitions. [2024-11-22 07:47:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:47:22,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-11-22 07:47:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:22,113 INFO L225 Difference]: With dead ends: 5195 [2024-11-22 07:47:22,114 INFO L226 Difference]: Without dead ends: 2599 [2024-11-22 07:47:22,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:22,123 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 0 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:22,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1690 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:47:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-22 07:47:22,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2599. [2024-11-22 07:47:22,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5640120967741935) internal successors, (3103), 1989 states have internal predecessors, (3103), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-22 07:47:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4307 transitions. [2024-11-22 07:47:22,332 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4307 transitions. Word has length 622 [2024-11-22 07:47:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:22,333 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4307 transitions. [2024-11-22 07:47:22,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:22,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4307 transitions. [2024-11-22 07:47:22,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-22 07:47:22,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:22,338 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:22,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:47:22,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:22,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1040344240, now seen corresponding path program 1 times [2024-11-22 07:47:22,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:22,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821013016] [2024-11-22 07:47:22,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:22,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:22,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821013016] [2024-11-22 07:47:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821013016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:22,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:22,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:47:22,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102744533] [2024-11-22 07:47:22,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:22,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:47:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:47:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:47:22,768 INFO L87 Difference]: Start difference. First operand 2599 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:23,041 INFO L93 Difference]: Finished difference Result 7791 states and 12915 transitions. [2024-11-22 07:47:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:47:23,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-11-22 07:47:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:23,073 INFO L225 Difference]: With dead ends: 7791 [2024-11-22 07:47:23,073 INFO L226 Difference]: Without dead ends: 5195 [2024-11-22 07:47:23,084 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 07:47:23,085 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 368 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:23,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:47:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2024-11-22 07:47:23,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5193. [2024-11-22 07:47:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 3964 states have (on average 1.562310797174571) internal successors, (6193), 3974 states have internal predecessors, (6193), 1204 states have call successors, (1204), 24 states have call predecessors, (1204), 24 states have return successors, (1204), 1194 states have call predecessors, (1204), 1204 states have call successors, (1204) [2024-11-22 07:47:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 8601 transitions. [2024-11-22 07:47:23,497 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 8601 transitions. Word has length 623 [2024-11-22 07:47:23,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:23,497 INFO L471 AbstractCegarLoop]: Abstraction has 5193 states and 8601 transitions. [2024-11-22 07:47:23,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 8601 transitions. [2024-11-22 07:47:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-11-22 07:47:23,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:23,504 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:23,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:47:23,504 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:23,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:23,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1024825522, now seen corresponding path program 1 times [2024-11-22 07:47:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:23,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071337865] [2024-11-22 07:47:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:23,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:23,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:23,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071337865] [2024-11-22 07:47:23,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071337865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:23,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:23,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768225866] [2024-11-22 07:47:23,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:23,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:23,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:23,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:23,893 INFO L87 Difference]: Start difference. First operand 5193 states and 8601 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:24,422 INFO L93 Difference]: Finished difference Result 12998 states and 21607 transitions. [2024-11-22 07:47:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:47:24,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-11-22 07:47:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:24,467 INFO L225 Difference]: With dead ends: 12998 [2024-11-22 07:47:24,471 INFO L226 Difference]: Without dead ends: 7808 [2024-11-22 07:47:24,488 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 07:47:24,489 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 580 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:24,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:47:24,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2024-11-22 07:47:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7536. [2024-11-22 07:47:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 6211 states have (on average 1.6068265979713412) internal successors, (9980), 6221 states have internal predecessors, (9980), 1298 states have call successors, (1298), 26 states have call predecessors, (1298), 26 states have return successors, (1298), 1288 states have call predecessors, (1298), 1298 states have call successors, (1298) [2024-11-22 07:47:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 12576 transitions. [2024-11-22 07:47:24,959 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 12576 transitions. Word has length 623 [2024-11-22 07:47:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:24,960 INFO L471 AbstractCegarLoop]: Abstraction has 7536 states and 12576 transitions. [2024-11-22 07:47:24,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:24,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 12576 transitions. [2024-11-22 07:47:24,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-22 07:47:24,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:24,968 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:24,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:47:24,969 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:24,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1323127035, now seen corresponding path program 1 times [2024-11-22 07:47:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:24,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700321531] [2024-11-22 07:47:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:24,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:25,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:25,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700321531] [2024-11-22 07:47:25,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700321531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:25,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:25,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:25,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341995477] [2024-11-22 07:47:25,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:25,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:25,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:25,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:25,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:25,493 INFO L87 Difference]: Start difference. First operand 7536 states and 12576 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:26,320 INFO L93 Difference]: Finished difference Result 18890 states and 31177 transitions. [2024-11-22 07:47:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:47:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 624 [2024-11-22 07:47:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:26,425 INFO L225 Difference]: With dead ends: 18890 [2024-11-22 07:47:26,426 INFO L226 Difference]: Without dead ends: 13178 [2024-11-22 07:47:26,436 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 07:47:26,436 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 618 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:26,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1688 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:47:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13178 states. [2024-11-22 07:47:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13178 to 12922. [2024-11-22 07:47:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12922 states, 10369 states have (on average 1.5749831227697946) internal successors, (16331), 10389 states have internal predecessors, (16331), 2502 states have call successors, (2502), 50 states have call predecessors, (2502), 50 states have return successors, (2502), 2482 states have call predecessors, (2502), 2502 states have call successors, (2502) [2024-11-22 07:47:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12922 states to 12922 states and 21335 transitions. [2024-11-22 07:47:27,190 INFO L78 Accepts]: Start accepts. Automaton has 12922 states and 21335 transitions. Word has length 624 [2024-11-22 07:47:27,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:27,190 INFO L471 AbstractCegarLoop]: Abstraction has 12922 states and 21335 transitions. [2024-11-22 07:47:27,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 12922 states and 21335 transitions. [2024-11-22 07:47:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-22 07:47:27,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:27,197 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:27,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:47:27,198 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:27,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1785606739, now seen corresponding path program 1 times [2024-11-22 07:47:27,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:27,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152150037] [2024-11-22 07:47:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:27,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:27,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152150037] [2024-11-22 07:47:27,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152150037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:27,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 07:47:27,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462651836] [2024-11-22 07:47:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:27,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 07:47:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:27,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 07:47:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:47:27,775 INFO L87 Difference]: Start difference. First operand 12922 states and 21335 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:29,103 INFO L93 Difference]: Finished difference Result 35806 states and 58607 transitions. [2024-11-22 07:47:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 07:47:29,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-11-22 07:47:29,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:29,202 INFO L225 Difference]: With dead ends: 35806 [2024-11-22 07:47:29,202 INFO L226 Difference]: Without dead ends: 25104 [2024-11-22 07:47:29,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:47:29,249 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 1220 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:29,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 4900 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:47:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25104 states. [2024-11-22 07:47:30,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25104 to 24018. [2024-11-22 07:47:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24018 states, 19009 states have (on average 1.5604713556736283) internal successors, (29663), 19049 states have internal predecessors, (29663), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-11-22 07:47:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24018 states to 24018 states and 39483 transitions. [2024-11-22 07:47:31,051 INFO L78 Accepts]: Start accepts. Automaton has 24018 states and 39483 transitions. Word has length 625 [2024-11-22 07:47:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:31,052 INFO L471 AbstractCegarLoop]: Abstraction has 24018 states and 39483 transitions. [2024-11-22 07:47:31,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 24018 states and 39483 transitions. [2024-11-22 07:47:31,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-22 07:47:31,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:31,061 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:31,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:47:31,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:31,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2116333547, now seen corresponding path program 1 times [2024-11-22 07:47:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221907587] [2024-11-22 07:47:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:31,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:31,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221907587] [2024-11-22 07:47:31,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221907587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:31,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:31,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:31,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078596425] [2024-11-22 07:47:31,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:31,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:31,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:31,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:31,753 INFO L87 Difference]: Start difference. First operand 24018 states and 39483 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:32,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:32,804 INFO L93 Difference]: Finished difference Result 47294 states and 77257 transitions. [2024-11-22 07:47:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:47:32,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-11-22 07:47:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:32,896 INFO L225 Difference]: With dead ends: 47294 [2024-11-22 07:47:32,897 INFO L226 Difference]: Without dead ends: 25100 [2024-11-22 07:47:32,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 07:47:32,943 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 572 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:32,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:47:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25100 states. [2024-11-22 07:47:34,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25100 to 24162. [2024-11-22 07:47:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24162 states, 19153 states have (on average 1.5543779042447659) internal successors, (29771), 19193 states have internal predecessors, (29771), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-11-22 07:47:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24162 states to 24162 states and 39591 transitions. [2024-11-22 07:47:34,732 INFO L78 Accepts]: Start accepts. Automaton has 24162 states and 39591 transitions. Word has length 625 [2024-11-22 07:47:34,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:34,734 INFO L471 AbstractCegarLoop]: Abstraction has 24162 states and 39591 transitions. [2024-11-22 07:47:34,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:34,735 INFO L276 IsEmpty]: Start isEmpty. Operand 24162 states and 39591 transitions. [2024-11-22 07:47:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-22 07:47:34,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:34,747 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:34,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:47:34,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:34,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1968114848, now seen corresponding path program 1 times [2024-11-22 07:47:34,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:34,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15273412] [2024-11-22 07:47:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:34,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:35,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:35,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15273412] [2024-11-22 07:47:35,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15273412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:35,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:35,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:47:35,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838948573] [2024-11-22 07:47:35,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:35,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:47:35,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:35,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:47:35,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:47:35,855 INFO L87 Difference]: Start difference. First operand 24162 states and 39591 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:37,415 INFO L93 Difference]: Finished difference Result 56934 states and 92994 transitions. [2024-11-22 07:47:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:47:37,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 626 [2024-11-22 07:47:37,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:37,556 INFO L225 Difference]: With dead ends: 56934 [2024-11-22 07:47:37,557 INFO L226 Difference]: Without dead ends: 35064 [2024-11-22 07:47:37,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:47:37,619 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 621 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:37,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 2128 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:47:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35064 states. [2024-11-22 07:47:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35064 to 33548. [2024-11-22 07:47:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33548 states, 26083 states have (on average 1.549016600851129) internal successors, (40403), 26143 states have internal predecessors, (40403), 7318 states have call successors, (7318), 146 states have call predecessors, (7318), 146 states have return successors, (7318), 7258 states have call predecessors, (7318), 7318 states have call successors, (7318) [2024-11-22 07:47:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33548 states to 33548 states and 55039 transitions. [2024-11-22 07:47:40,378 INFO L78 Accepts]: Start accepts. Automaton has 33548 states and 55039 transitions. Word has length 626 [2024-11-22 07:47:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:40,379 INFO L471 AbstractCegarLoop]: Abstraction has 33548 states and 55039 transitions. [2024-11-22 07:47:40,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 33548 states and 55039 transitions. [2024-11-22 07:47:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-22 07:47:40,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:40,387 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:40,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:47:40,388 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:40,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1934633301, now seen corresponding path program 1 times [2024-11-22 07:47:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821959874] [2024-11-22 07:47:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 66 proven. 213 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:47:41,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821959874] [2024-11-22 07:47:41,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821959874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:47:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13035400] [2024-11-22 07:47:41,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:41,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:47:41,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:47:41,040 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 07:47:41,041 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 07:47:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:41,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 07:47:41,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:47:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8805 proven. 147 refuted. 0 times theorem prover too weak. 8532 trivial. 0 not checked. [2024-11-22 07:47:41,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:47:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:47:42,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13035400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:47:42,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:47:42,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-11-22 07:47:42,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618243181] [2024-11-22 07:47:42,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:47:42,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 07:47:42,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:42,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 07:47:42,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 07:47:42,379 INFO L87 Difference]: Start difference. First operand 33548 states and 55039 transitions. Second operand has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-22 07:47:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:45,669 INFO L93 Difference]: Finished difference Result 89756 states and 146021 transitions. [2024-11-22 07:47:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:47:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) Word has length 631 [2024-11-22 07:47:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:45,851 INFO L225 Difference]: With dead ends: 89756 [2024-11-22 07:47:45,851 INFO L226 Difference]: Without dead ends: 56544 [2024-11-22 07:47:45,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1260 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2024-11-22 07:47:45,932 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 2396 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:45,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1462 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 07:47:45,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56544 states. [2024-11-22 07:47:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56544 to 55926. [2024-11-22 07:47:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55926 states, 45795 states have (on average 1.5571132219674637) internal successors, (71308), 45963 states have internal predecessors, (71308), 9694 states have call successors, (9694), 436 states have call predecessors, (9694), 436 states have return successors, (9694), 9526 states have call predecessors, (9694), 9694 states have call successors, (9694) [2024-11-22 07:47:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55926 states to 55926 states and 90696 transitions. [2024-11-22 07:47:49,677 INFO L78 Accepts]: Start accepts. Automaton has 55926 states and 90696 transitions. Word has length 631 [2024-11-22 07:47:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:49,678 INFO L471 AbstractCegarLoop]: Abstraction has 55926 states and 90696 transitions. [2024-11-22 07:47:49,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-22 07:47:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 55926 states and 90696 transitions. [2024-11-22 07:47:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-11-22 07:47:49,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:49,692 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:49,703 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 07:47:49,892 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,SelfDestructingSolverStorable12 [2024-11-22 07:47:49,893 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:49,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash 512200890, now seen corresponding path program 1 times [2024-11-22 07:47:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:49,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163117301] [2024-11-22 07:47:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:50,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:50,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163117301] [2024-11-22 07:47:50,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163117301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:50,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:50,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:47:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099022694] [2024-11-22 07:47:50,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:50,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:47:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:50,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:47:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:47:50,298 INFO L87 Difference]: Start difference. First operand 55926 states and 90696 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:47:53,123 INFO L93 Difference]: Finished difference Result 112448 states and 181432 transitions. [2024-11-22 07:47:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:47:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-11-22 07:47:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:47:53,315 INFO L225 Difference]: With dead ends: 112448 [2024-11-22 07:47:53,315 INFO L226 Difference]: Without dead ends: 59352 [2024-11-22 07:47:53,407 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 07:47:53,408 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 727 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:47:53,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1528 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:47:53,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59352 states. [2024-11-22 07:47:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59352 to 58918. [2024-11-22 07:47:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58918 states, 47274 states have (on average 1.5380335914033083) internal successors, (72709), 47442 states have internal predecessors, (72709), 10918 states have call successors, (10918), 725 states have call predecessors, (10918), 725 states have return successors, (10918), 10750 states have call predecessors, (10918), 10918 states have call successors, (10918) [2024-11-22 07:47:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58918 states to 58918 states and 94545 transitions. [2024-11-22 07:47:57,279 INFO L78 Accepts]: Start accepts. Automaton has 58918 states and 94545 transitions. Word has length 632 [2024-11-22 07:47:57,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:47:57,280 INFO L471 AbstractCegarLoop]: Abstraction has 58918 states and 94545 transitions. [2024-11-22 07:47:57,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:47:57,280 INFO L276 IsEmpty]: Start isEmpty. Operand 58918 states and 94545 transitions. [2024-11-22 07:47:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-11-22 07:47:57,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:47:57,292 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:57,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 07:47:57,292 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:47:57,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:47:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1983184386, now seen corresponding path program 1 times [2024-11-22 07:47:57,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:47:57,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774791520] [2024-11-22 07:47:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:47:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:47:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:47:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:47:57,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:47:57,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774791520] [2024-11-22 07:47:57,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774791520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:47:57,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:47:57,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:47:57,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814378967] [2024-11-22 07:47:57,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:47:57,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:47:57,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:47:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:47:57,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:47:57,788 INFO L87 Difference]: Start difference. First operand 58918 states and 94545 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:48:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:02,026 INFO L93 Difference]: Finished difference Result 153390 states and 245825 transitions. [2024-11-22 07:48:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-11-22 07:48:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:02,485 INFO L225 Difference]: With dead ends: 153390 [2024-11-22 07:48:02,485 INFO L226 Difference]: Without dead ends: 98488 [2024-11-22 07:48:02,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:48:02,571 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 260 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:02,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1250 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:48:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98488 states.