./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label44.c -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 4590079a5f8946ec9488ef76281079c2cb860e2f88ad1b21eefdd23ad59a57f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:56:09,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:56:09,580 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:56:09,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:56:09,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:56:09,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:56:09,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:56:09,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:56:09,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:56:09,624 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:56:09,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:56:09,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:56:09,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:56:09,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:56:09,627 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:56:09,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:56:09,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:56:09,628 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:56:09,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:56:09,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:56:09,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:56:09,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:56:09,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:56:09,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:56:09,632 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:56:09,632 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:56:09,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:56:09,633 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:56:09,633 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:56:09,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:56:09,634 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:56:09,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:56:09,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:56:09,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:56:09,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:56:09,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:56:09,635 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:56:09,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:56:09,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:56:09,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:56:09,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:56:09,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:56:09,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4590079a5f8946ec9488ef76281079c2cb860e2f88ad1b21eefdd23ad59a57f9 [2024-11-16 03:56:09,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:56:09,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:56:09,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:56:09,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:56:09,910 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:56:09,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label44.c [2024-11-16 03:56:11,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:56:11,846 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:56:11,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c [2024-11-16 03:56:11,895 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c53368e5d/2801544f4c9445588eb773424a4480df/FLAG8c83bca05 [2024-11-16 03:56:11,918 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c53368e5d/2801544f4c9445588eb773424a4480df [2024-11-16 03:56:11,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:56:11,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:56:11,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:56:11,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:56:11,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:56:11,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:56:11" (1/1) ... [2024-11-16 03:56:11,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bdf818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:11, skipping insertion in model container [2024-11-16 03:56:11,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:56:11" (1/1) ... [2024-11-16 03:56:12,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:56:12,250 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/eca-rers2012/Problem12_label44.c[6250,6263] [2024-11-16 03:56:13,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:56:13,025 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:56:13,052 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/eca-rers2012/Problem12_label44.c[6250,6263] [2024-11-16 03:56:13,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:56:13,458 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:56:13,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13 WrapperNode [2024-11-16 03:56:13,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:56:13,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:56:13,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:56:13,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:56:13,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:13,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:13,757 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:56:13,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:56:13,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:56:13,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:56:13,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:56:13,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:13,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:13,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,028 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]. [2024-11-16 03:56:14,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:56:14,330 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:56:14,331 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:56:14,331 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:56:14,332 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (1/1) ... [2024-11-16 03:56:14,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:56:14,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:56:14,364 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) [2024-11-16 03:56:14,367 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 [2024-11-16 03:56:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:56:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:56:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:56:14,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:56:14,500 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:56:14,502 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:56:18,695 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:56:18,696 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:56:18,698 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:56:18,868 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:56:18,868 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:56:18,908 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:56:18,909 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:56:18,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:56:18 BoogieIcfgContainer [2024-11-16 03:56:18,909 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:56:18,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:56:18,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:56:18,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:56:18,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:56:11" (1/3) ... [2024-11-16 03:56:18,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67597ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:56:18, skipping insertion in model container [2024-11-16 03:56:18,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:13" (2/3) ... [2024-11-16 03:56:18,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67597ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:56:18, skipping insertion in model container [2024-11-16 03:56:18,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:56:18" (3/3) ... [2024-11-16 03:56:18,919 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label44.c [2024-11-16 03:56:18,936 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:56:18,938 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:56:19,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:56:19,049 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;@3167f88f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:56:19,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:56:19,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 03:56:19,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:19,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:19,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:19,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash -34091850, now seen corresponding path program 1 times [2024-11-16 03:56:19,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:19,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486744523] [2024-11-16 03:56:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:19,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:56:19,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:19,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486744523] [2024-11-16 03:56:19,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486744523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:19,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:19,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:56:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992448872] [2024-11-16 03:56:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:19,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:19,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:19,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:19,600 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:23,083 INFO L93 Difference]: Finished difference Result 2394 states and 4635 transitions. [2024-11-16 03:56:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:23,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-16 03:56:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:23,106 INFO L225 Difference]: With dead ends: 2394 [2024-11-16 03:56:23,107 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:56:23,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:23,123 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 784 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:23,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 485 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:56:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:56:23,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:56:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.6372679045092837) internal successors, (2469), 1508 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:23,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2469 transitions. [2024-11-16 03:56:23,265 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2469 transitions. Word has length 52 [2024-11-16 03:56:23,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:23,266 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2469 transitions. [2024-11-16 03:56:23,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2469 transitions. [2024-11-16 03:56:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 03:56:23,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:23,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:23,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:56:23,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:23,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:23,272 INFO L85 PathProgramCache]: Analyzing trace with hash -746395868, now seen corresponding path program 1 times [2024-11-16 03:56:23,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:23,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991004260] [2024-11-16 03:56:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:23,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:56:23,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991004260] [2024-11-16 03:56:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991004260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:23,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:23,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:23,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910014742] [2024-11-16 03:56:23,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:23,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:56:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:56:23,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:23,734 INFO L87 Difference]: Start difference. First operand 1509 states and 2469 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:27,487 INFO L93 Difference]: Finished difference Result 4558 states and 7439 transitions. [2024-11-16 03:56:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:56:27,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-16 03:56:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:27,498 INFO L225 Difference]: With dead ends: 4558 [2024-11-16 03:56:27,498 INFO L226 Difference]: Without dead ends: 3013 [2024-11-16 03:56:27,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:27,501 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 703 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:27,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 658 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 03:56:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-11-16 03:56:27,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3013. [2024-11-16 03:56:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.340969455511288) internal successors, (4039), 3012 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4039 transitions. [2024-11-16 03:56:27,550 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4039 transitions. Word has length 124 [2024-11-16 03:56:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:27,551 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4039 transitions. [2024-11-16 03:56:27,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4039 transitions. [2024-11-16 03:56:27,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 03:56:27,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:27,556 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:27,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:56:27,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:27,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1219416837, now seen corresponding path program 1 times [2024-11-16 03:56:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:27,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289327416] [2024-11-16 03:56:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:27,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:56:27,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:27,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289327416] [2024-11-16 03:56:27,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289327416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:27,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:27,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:27,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231748012] [2024-11-16 03:56:27,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:27,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:56:27,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:27,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:56:27,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:27,964 INFO L87 Difference]: Start difference. First operand 3013 states and 4039 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:31,577 INFO L93 Difference]: Finished difference Result 9784 states and 12907 transitions. [2024-11-16 03:56:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:56:31,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-16 03:56:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:31,605 INFO L225 Difference]: With dead ends: 9784 [2024-11-16 03:56:31,606 INFO L226 Difference]: Without dead ends: 6773 [2024-11-16 03:56:31,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:56:31,614 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 2095 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 4840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:31,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 458 Invalid, 4840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 03:56:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-16 03:56:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6773. [2024-11-16 03:56:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6773 states, 6772 states have (on average 1.2869167158889545) internal successors, (8715), 6772 states have internal predecessors, (8715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6773 states to 6773 states and 8715 transitions. [2024-11-16 03:56:31,733 INFO L78 Accepts]: Start accepts. Automaton has 6773 states and 8715 transitions. Word has length 162 [2024-11-16 03:56:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:31,737 INFO L471 AbstractCegarLoop]: Abstraction has 6773 states and 8715 transitions. [2024-11-16 03:56:31,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6773 states and 8715 transitions. [2024-11-16 03:56:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-16 03:56:31,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:31,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:31,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:56:31,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:31,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1455804963, now seen corresponding path program 1 times [2024-11-16 03:56:31,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:31,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347725652] [2024-11-16 03:56:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:31,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 03:56:32,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:32,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347725652] [2024-11-16 03:56:32,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347725652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:32,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:32,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585093811] [2024-11-16 03:56:32,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:32,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:56:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:56:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:32,188 INFO L87 Difference]: Start difference. First operand 6773 states and 8715 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:35,428 INFO L93 Difference]: Finished difference Result 15841 states and 21418 transitions. [2024-11-16 03:56:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:56:35,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2024-11-16 03:56:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:35,463 INFO L225 Difference]: With dead ends: 15841 [2024-11-16 03:56:35,463 INFO L226 Difference]: Without dead ends: 9784 [2024-11-16 03:56:35,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:35,476 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 851 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3465 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 4018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:35,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 499 Invalid, 4018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3465 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:56:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9784 states. [2024-11-16 03:56:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 9781. [2024-11-16 03:56:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 1.272597137014315) internal successors, (12446), 9780 states have internal predecessors, (12446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 12446 transitions. [2024-11-16 03:56:35,680 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 12446 transitions. Word has length 266 [2024-11-16 03:56:35,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:35,682 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 12446 transitions. [2024-11-16 03:56:35,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 12446 transitions. [2024-11-16 03:56:35,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-16 03:56:35,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:35,689 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:35,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:56:35,689 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:35,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash -331653130, now seen corresponding path program 1 times [2024-11-16 03:56:35,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208523636] [2024-11-16 03:56:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:35,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 03:56:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:35,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208523636] [2024-11-16 03:56:35,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208523636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:35,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:35,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:35,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452109627] [2024-11-16 03:56:35,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:35,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:35,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:35,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:35,944 INFO L87 Difference]: Start difference. First operand 9781 states and 12446 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:38,627 INFO L93 Difference]: Finished difference Result 26328 states and 34188 transitions. [2024-11-16 03:56:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2024-11-16 03:56:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:38,670 INFO L225 Difference]: With dead ends: 26328 [2024-11-16 03:56:38,671 INFO L226 Difference]: Without dead ends: 17301 [2024-11-16 03:56:38,682 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 [2024-11-16 03:56:38,683 INFO L432 NwaCegarLoop]: 1090 mSDtfsCounter, 741 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:38,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1100 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:56:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17301 states. [2024-11-16 03:56:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17301 to 17301. [2024-11-16 03:56:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17301 states, 17300 states have (on average 1.2606358381502891) internal successors, (21809), 17300 states have internal predecessors, (21809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17301 states to 17301 states and 21809 transitions. [2024-11-16 03:56:38,929 INFO L78 Accepts]: Start accepts. Automaton has 17301 states and 21809 transitions. Word has length 284 [2024-11-16 03:56:38,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:38,930 INFO L471 AbstractCegarLoop]: Abstraction has 17301 states and 21809 transitions. [2024-11-16 03:56:38,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 17301 states and 21809 transitions. [2024-11-16 03:56:38,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-16 03:56:38,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:38,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:38,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:56:38,935 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:38,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:38,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1747091732, now seen corresponding path program 1 times [2024-11-16 03:56:38,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:38,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161337538] [2024-11-16 03:56:38,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:38,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-16 03:56:39,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:39,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161337538] [2024-11-16 03:56:39,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161337538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:39,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:39,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:56:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530039349] [2024-11-16 03:56:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:39,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:39,173 INFO L87 Difference]: Start difference. First operand 17301 states and 21809 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:41,693 INFO L93 Difference]: Finished difference Result 33848 states and 42859 transitions. [2024-11-16 03:56:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 288 [2024-11-16 03:56:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:41,733 INFO L225 Difference]: With dead ends: 33848 [2024-11-16 03:56:41,733 INFO L226 Difference]: Without dead ends: 17301 [2024-11-16 03:56:41,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:41,752 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 695 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:41,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 434 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:56:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17301 states. [2024-11-16 03:56:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17301 to 15797. [2024-11-16 03:56:41,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15797 states, 15796 states have (on average 1.1702962775386174) internal successors, (18486), 15796 states have internal predecessors, (18486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:41,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 18486 transitions. [2024-11-16 03:56:41,961 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 18486 transitions. Word has length 288 [2024-11-16 03:56:41,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:41,962 INFO L471 AbstractCegarLoop]: Abstraction has 15797 states and 18486 transitions. [2024-11-16 03:56:41,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:41,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 18486 transitions. [2024-11-16 03:56:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-16 03:56:41,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:41,970 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:41,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:56:41,970 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:41,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash 378952902, now seen corresponding path program 1 times [2024-11-16 03:56:41,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:41,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258652050] [2024-11-16 03:56:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:56:42,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:42,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258652050] [2024-11-16 03:56:42,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258652050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335722204] [2024-11-16 03:56:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:42,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:42,260 INFO L87 Difference]: Start difference. First operand 15797 states and 18486 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:44,715 INFO L93 Difference]: Finished difference Result 38360 states and 45586 transitions. [2024-11-16 03:56:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:44,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 368 [2024-11-16 03:56:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:44,752 INFO L225 Difference]: With dead ends: 38360 [2024-11-16 03:56:44,753 INFO L226 Difference]: Without dead ends: 23317 [2024-11-16 03:56:44,764 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 [2024-11-16 03:56:44,766 INFO L432 NwaCegarLoop]: 1199 mSDtfsCounter, 680 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:44,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1209 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:56:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23317 states. [2024-11-16 03:56:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23317 to 22565. [2024-11-16 03:56:45,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22564 states have (on average 1.1528541038822904) internal successors, (26013), 22564 states have internal predecessors, (26013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 26013 transitions. [2024-11-16 03:56:45,038 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 26013 transitions. Word has length 368 [2024-11-16 03:56:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:45,039 INFO L471 AbstractCegarLoop]: Abstraction has 22565 states and 26013 transitions. [2024-11-16 03:56:45,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:45,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 26013 transitions. [2024-11-16 03:56:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-16 03:56:45,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:45,047 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:45,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:56:45,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:45,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:45,049 INFO L85 PathProgramCache]: Analyzing trace with hash -973684923, now seen corresponding path program 1 times [2024-11-16 03:56:45,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:45,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593083265] [2024-11-16 03:56:45,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:45,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-16 03:56:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593083265] [2024-11-16 03:56:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593083265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:45,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109961560] [2024-11-16 03:56:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:45,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:45,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:45,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:45,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:45,318 INFO L87 Difference]: Start difference. First operand 22565 states and 26013 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:47,501 INFO L93 Difference]: Finished difference Result 49640 states and 57215 transitions. [2024-11-16 03:56:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:47,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 383 [2024-11-16 03:56:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:47,542 INFO L225 Difference]: With dead ends: 49640 [2024-11-16 03:56:47,543 INFO L226 Difference]: Without dead ends: 25573 [2024-11-16 03:56:47,559 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 [2024-11-16 03:56:47,560 INFO L432 NwaCegarLoop]: 1340 mSDtfsCounter, 724 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:47,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1350 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:56:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2024-11-16 03:56:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 24821. [2024-11-16 03:56:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24821 states, 24820 states have (on average 1.1379532634971796) internal successors, (28244), 24820 states have internal predecessors, (28244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24821 states to 24821 states and 28244 transitions. [2024-11-16 03:56:47,936 INFO L78 Accepts]: Start accepts. Automaton has 24821 states and 28244 transitions. Word has length 383 [2024-11-16 03:56:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:47,937 INFO L471 AbstractCegarLoop]: Abstraction has 24821 states and 28244 transitions. [2024-11-16 03:56:47,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 24821 states and 28244 transitions. [2024-11-16 03:56:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-16 03:56:47,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:47,949 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:47,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:56:47,950 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:47,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:47,951 INFO L85 PathProgramCache]: Analyzing trace with hash 964944782, now seen corresponding path program 1 times [2024-11-16 03:56:47,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:47,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718117081] [2024-11-16 03:56:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-16 03:56:48,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:48,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718117081] [2024-11-16 03:56:48,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718117081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:48,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:48,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:48,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685093646] [2024-11-16 03:56:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:48,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:48,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:48,360 INFO L87 Difference]: Start difference. First operand 24821 states and 28244 transitions. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:51,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:51,139 INFO L93 Difference]: Finished difference Result 67688 states and 77695 transitions. [2024-11-16 03:56:51,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:51,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 469 [2024-11-16 03:56:51,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:51,193 INFO L225 Difference]: With dead ends: 67688 [2024-11-16 03:56:51,194 INFO L226 Difference]: Without dead ends: 43621 [2024-11-16 03:56:51,208 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 [2024-11-16 03:56:51,209 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 711 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:51,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 526 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:56:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43621 states. [2024-11-16 03:56:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43621 to 42117. [2024-11-16 03:56:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42117 states, 42116 states have (on average 1.1250831038085287) internal successors, (47384), 42116 states have internal predecessors, (47384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42117 states to 42117 states and 47384 transitions. [2024-11-16 03:56:51,639 INFO L78 Accepts]: Start accepts. Automaton has 42117 states and 47384 transitions. Word has length 469 [2024-11-16 03:56:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:51,640 INFO L471 AbstractCegarLoop]: Abstraction has 42117 states and 47384 transitions. [2024-11-16 03:56:51,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 42117 states and 47384 transitions. [2024-11-16 03:56:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-16 03:56:51,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:51,650 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:51,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:56:51,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:51,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1077067176, now seen corresponding path program 1 times [2024-11-16 03:56:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636750914] [2024-11-16 03:56:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:51,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-16 03:56:52,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:52,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636750914] [2024-11-16 03:56:52,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636750914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:52,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:52,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408087808] [2024-11-16 03:56:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:52,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:52,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:52,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:52,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:52,227 INFO L87 Difference]: Start difference. First operand 42117 states and 47384 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:54,953 INFO L93 Difference]: Finished difference Result 100779 states and 114366 transitions. [2024-11-16 03:56:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2024-11-16 03:56:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:55,018 INFO L225 Difference]: With dead ends: 100779 [2024-11-16 03:56:55,019 INFO L226 Difference]: Without dead ends: 59416 [2024-11-16 03:56:55,053 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 [2024-11-16 03:56:55,054 INFO L432 NwaCegarLoop]: 1264 mSDtfsCounter, 699 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:55,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1274 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:56:55,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59416 states. [2024-11-16 03:56:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59416 to 55653. [2024-11-16 03:56:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55653 states, 55652 states have (on average 1.111262847696399) internal successors, (61844), 55652 states have internal predecessors, (61844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55653 states to 55653 states and 61844 transitions. [2024-11-16 03:56:55,930 INFO L78 Accepts]: Start accepts. Automaton has 55653 states and 61844 transitions. Word has length 473 [2024-11-16 03:56:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:55,931 INFO L471 AbstractCegarLoop]: Abstraction has 55653 states and 61844 transitions. [2024-11-16 03:56:55,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 55653 states and 61844 transitions. [2024-11-16 03:56:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-16 03:56:55,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:55,953 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:55,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:56:55,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:55,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1028554496, now seen corresponding path program 1 times [2024-11-16 03:56:55,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:55,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058233424] [2024-11-16 03:56:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:55,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-16 03:56:56,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:56,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058233424] [2024-11-16 03:56:56,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058233424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:56,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480018403] [2024-11-16 03:56:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:56,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:56:56,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:56,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:56:56,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:56,496 INFO L87 Difference]: Start difference. First operand 55653 states and 61844 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:58,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:58,972 INFO L93 Difference]: Finished difference Result 112808 states and 125238 transitions. [2024-11-16 03:56:58,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:58,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2024-11-16 03:56:58,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:59,030 INFO L225 Difference]: With dead ends: 112808 [2024-11-16 03:56:59,030 INFO L226 Difference]: Without dead ends: 57909 [2024-11-16 03:56:59,055 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 [2024-11-16 03:56:59,056 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 701 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:59,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 990 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:56:59,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57909 states. [2024-11-16 03:56:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57909 to 54149. [2024-11-16 03:56:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54149 states, 54148 states have (on average 1.084379847824481) internal successors, (58717), 54148 states have internal predecessors, (58717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54149 states to 54149 states and 58717 transitions. [2024-11-16 03:56:59,825 INFO L78 Accepts]: Start accepts. Automaton has 54149 states and 58717 transitions. Word has length 489 [2024-11-16 03:56:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:59,830 INFO L471 AbstractCegarLoop]: Abstraction has 54149 states and 58717 transitions. [2024-11-16 03:56:59,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 54149 states and 58717 transitions. [2024-11-16 03:56:59,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-16 03:56:59,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:59,860 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:59,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:56:59,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:59,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash 346398202, now seen corresponding path program 1 times [2024-11-16 03:56:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:59,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073071560] [2024-11-16 03:56:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:59,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-16 03:57:00,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:00,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073071560] [2024-11-16 03:57:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073071560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:00,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:00,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:00,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422537621] [2024-11-16 03:57:00,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:00,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:00,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:00,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:00,431 INFO L87 Difference]: Start difference. First operand 54149 states and 58717 transitions. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:03,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:03,052 INFO L93 Difference]: Finished difference Result 131608 states and 143323 transitions. [2024-11-16 03:57:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:03,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2024-11-16 03:57:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:03,135 INFO L225 Difference]: With dead ends: 131608 [2024-11-16 03:57:03,135 INFO L226 Difference]: Without dead ends: 78213 [2024-11-16 03:57:03,162 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 [2024-11-16 03:57:03,162 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 758 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:03,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 308 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:57:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78213 states. [2024-11-16 03:57:03,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78213 to 68437. [2024-11-16 03:57:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68437 states, 68436 states have (on average 1.0796364486527559) internal successors, (73886), 68436 states have internal predecessors, (73886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68437 states to 68437 states and 73886 transitions. [2024-11-16 03:57:03,985 INFO L78 Accepts]: Start accepts. Automaton has 68437 states and 73886 transitions. Word has length 577 [2024-11-16 03:57:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:03,986 INFO L471 AbstractCegarLoop]: Abstraction has 68437 states and 73886 transitions. [2024-11-16 03:57:03,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 68437 states and 73886 transitions. [2024-11-16 03:57:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-16 03:57:03,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:03,996 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:03,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:57:03,997 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:03,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1855596414, now seen corresponding path program 1 times [2024-11-16 03:57:03,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:03,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672867871] [2024-11-16 03:57:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:03,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-16 03:57:04,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:04,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672867871] [2024-11-16 03:57:04,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672867871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:04,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:04,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:04,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934596767] [2024-11-16 03:57:04,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:04,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:04,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:04,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:04,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:04,877 INFO L87 Difference]: Start difference. First operand 68437 states and 73886 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:07,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:07,435 INFO L93 Difference]: Finished difference Result 157176 states and 170869 transitions. [2024-11-16 03:57:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 585 [2024-11-16 03:57:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:07,556 INFO L225 Difference]: With dead ends: 157176 [2024-11-16 03:57:07,556 INFO L226 Difference]: Without dead ends: 89493 [2024-11-16 03:57:07,712 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 [2024-11-16 03:57:07,716 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 498 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:07,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1261 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:57:07,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89493 states. [2024-11-16 03:57:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89493 to 89493. [2024-11-16 03:57:08,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89493 states, 89492 states have (on average 1.071134850042462) internal successors, (95858), 89492 states have internal predecessors, (95858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89493 states to 89493 states and 95858 transitions. [2024-11-16 03:57:08,974 INFO L78 Accepts]: Start accepts. Automaton has 89493 states and 95858 transitions. Word has length 585 [2024-11-16 03:57:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:08,974 INFO L471 AbstractCegarLoop]: Abstraction has 89493 states and 95858 transitions. [2024-11-16 03:57:08,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 89493 states and 95858 transitions. [2024-11-16 03:57:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-11-16 03:57:08,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:08,985 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:08,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:57:08,985 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:08,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:08,985 INFO L85 PathProgramCache]: Analyzing trace with hash -86594133, now seen corresponding path program 1 times [2024-11-16 03:57:08,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:08,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185693001] [2024-11-16 03:57:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:08,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-16 03:57:09,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:09,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185693001] [2024-11-16 03:57:09,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185693001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:09,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:09,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:09,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822369863] [2024-11-16 03:57:09,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:09,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:09,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:09,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:09,566 INFO L87 Difference]: Start difference. First operand 89493 states and 95858 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:12,068 INFO L93 Difference]: Finished difference Result 179736 states and 192467 transitions. [2024-11-16 03:57:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 600 [2024-11-16 03:57:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:12,169 INFO L225 Difference]: With dead ends: 179736 [2024-11-16 03:57:12,169 INFO L226 Difference]: Without dead ends: 90997 [2024-11-16 03:57:12,217 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 [2024-11-16 03:57:12,218 INFO L432 NwaCegarLoop]: 1159 mSDtfsCounter, 566 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:12,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1167 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:57:12,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90997 states. [2024-11-16 03:57:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90997 to 89493. [2024-11-16 03:57:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89493 states, 89492 states have (on average 1.0572565145487864) internal successors, (94616), 89492 states have internal predecessors, (94616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:13,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89493 states to 89493 states and 94616 transitions. [2024-11-16 03:57:13,635 INFO L78 Accepts]: Start accepts. Automaton has 89493 states and 94616 transitions. Word has length 600 [2024-11-16 03:57:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:13,635 INFO L471 AbstractCegarLoop]: Abstraction has 89493 states and 94616 transitions. [2024-11-16 03:57:13,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 89493 states and 94616 transitions. [2024-11-16 03:57:13,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-11-16 03:57:13,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:13,648 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:13,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:57:13,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:13,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:13,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1074884901, now seen corresponding path program 1 times [2024-11-16 03:57:13,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:13,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694496257] [2024-11-16 03:57:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:13,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-16 03:57:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694496257] [2024-11-16 03:57:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694496257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:14,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:14,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:14,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549600904] [2024-11-16 03:57:14,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:14,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:14,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:14,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:14,648 INFO L87 Difference]: Start difference. First operand 89493 states and 94616 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:19,231 INFO L93 Difference]: Finished difference Result 274491 states and 290652 transitions. [2024-11-16 03:57:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:57:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 633 [2024-11-16 03:57:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:19,463 INFO L225 Difference]: With dead ends: 274491 [2024-11-16 03:57:19,463 INFO L226 Difference]: Without dead ends: 185752 [2024-11-16 03:57:19,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:19,516 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 1630 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4699 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 5207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 4699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:19,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 62 Invalid, 5207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 4699 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 03:57:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185752 states. [2024-11-16 03:57:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185752 to 172213. [2024-11-16 03:57:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172213 states, 172212 states have (on average 1.058451211297703) internal successors, (182278), 172212 states have internal predecessors, (182278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172213 states to 172213 states and 182278 transitions. [2024-11-16 03:57:21,758 INFO L78 Accepts]: Start accepts. Automaton has 172213 states and 182278 transitions. Word has length 633 [2024-11-16 03:57:21,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:21,759 INFO L471 AbstractCegarLoop]: Abstraction has 172213 states and 182278 transitions. [2024-11-16 03:57:21,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 172213 states and 182278 transitions. [2024-11-16 03:57:21,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-16 03:57:21,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:21,773 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:21,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:57:21,773 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:21,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash -180853493, now seen corresponding path program 1 times [2024-11-16 03:57:21,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:21,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089309314] [2024-11-16 03:57:21,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:21,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 527 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 03:57:23,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:23,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089309314] [2024-11-16 03:57:23,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089309314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:23,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:23,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:57:23,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811733414] [2024-11-16 03:57:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:23,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:23,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:23,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:23,206 INFO L87 Difference]: Start difference. First operand 172213 states and 182278 transitions. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)