./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/toy.cil.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/systemc/toy.cil.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 4a8eabec1830ab654b41f6937ec2f9359cd3dd371ede66eafc352bac48edda3b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:09:13,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:09:13,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:09:13,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:09:13,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:09:13,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:09:13,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:09:13,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:09:13,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:09:13,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:09:13,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:09:13,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:09:13,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:09:13,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:09:13,649 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:09:13,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:09:13,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:09:13,649 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:09:13,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:09:13,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:09:13,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:09:13,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:09:13,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:09:13,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:09:13,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:09:13,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:09:13,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:09:13,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:09:13,652 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:09:13,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:09:13,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:09:13,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:09:13,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:13,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:09:13,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:09:13,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:09:13,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:09:13,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:09:13,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:09:13,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:09:13,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:09:13,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:09:13,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8eabec1830ab654b41f6937ec2f9359cd3dd371ede66eafc352bac48edda3b [2024-11-16 08:09:13,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:09:13,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:09:13,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:09:13,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:09:13,934 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:09:13,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy.cil.c [2024-11-16 08:09:15,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:09:15,589 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:09:15,589 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c [2024-11-16 08:09:15,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff403c55/b900ab0609c84ea78757ea8a621bb912/FLAG1ae577779 [2024-11-16 08:09:15,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff403c55/b900ab0609c84ea78757ea8a621bb912 [2024-11-16 08:09:15,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:09:15,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:09:15,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:15,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:09:15,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:09:15,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:15,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e6b564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15, skipping insertion in model container [2024-11-16 08:09:15,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:15,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:09:15,829 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/systemc/toy.cil.c[697,710] [2024-11-16 08:09:15,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:15,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:09:15,923 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/systemc/toy.cil.c[697,710] [2024-11-16 08:09:15,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:15,977 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:09:15,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15 WrapperNode [2024-11-16 08:09:15,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:15,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:15,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:09:15,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:09:15,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:15,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,016 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 360 [2024-11-16 08:09:16,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:16,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:09:16,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:09:16,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:09:16,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,051 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 08:09:16,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:09:16,064 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:09:16,064 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:09:16,064 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:09:16,069 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (1/1) ... [2024-11-16 08:09:16,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:09:16,103 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 08:09:16,107 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 08:09:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:09:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:09:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:09:16,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:09:16,210 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:09:16,212 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:09:16,614 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-16 08:09:16,614 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:09:16,631 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:09:16,632 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:09:16,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:16 BoogieIcfgContainer [2024-11-16 08:09:16,632 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:09:16,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:09:16,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:09:16,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:09:16,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:09:15" (1/3) ... [2024-11-16 08:09:16,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ba273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:16, skipping insertion in model container [2024-11-16 08:09:16,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:15" (2/3) ... [2024-11-16 08:09:16,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ba273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:16, skipping insertion in model container [2024-11-16 08:09:16,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:16" (3/3) ... [2024-11-16 08:09:16,639 INFO L112 eAbstractionObserver]: Analyzing ICFG toy.cil.c [2024-11-16 08:09:16,652 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:09:16,653 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:09:16,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:09:16,721 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;@36e04d36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:09:16,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:09:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 158 states have (on average 1.6898734177215189) internal successors, (267), 159 states have internal predecessors, (267), 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 08:09:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:16,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:16,736 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] [2024-11-16 08:09:16,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:16,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash -263637962, now seen corresponding path program 1 times [2024-11-16 08:09:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816361462] [2024-11-16 08:09:16,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:16,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:17,113 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 08:09:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:17,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816361462] [2024-11-16 08:09:17,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816361462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:17,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:17,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:17,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455253062] [2024-11-16 08:09:17,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:17,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:17,150 INFO L87 Difference]: Start difference. First operand has 160 states, 158 states have (on average 1.6898734177215189) internal successors, (267), 159 states have internal predecessors, (267), 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 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:17,261 INFO L93 Difference]: Finished difference Result 429 states and 719 transitions. [2024-11-16 08:09:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:09:17,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:17,317 INFO L225 Difference]: With dead ends: 429 [2024-11-16 08:09:17,317 INFO L226 Difference]: Without dead ends: 262 [2024-11-16 08:09:17,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:17,334 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 656 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:17,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 424 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-16 08:09:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2024-11-16 08:09:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.6108949416342413) internal successors, (414), 257 states have internal predecessors, (414), 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 08:09:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 414 transitions. [2024-11-16 08:09:17,427 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 414 transitions. Word has length 40 [2024-11-16 08:09:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:17,427 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 414 transitions. [2024-11-16 08:09:17,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 414 transitions. [2024-11-16 08:09:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:17,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:17,430 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] [2024-11-16 08:09:17,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:09:17,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:17,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1847652407, now seen corresponding path program 1 times [2024-11-16 08:09:17,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:17,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787641468] [2024-11-16 08:09:17,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:17,584 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 08:09:17,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:17,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787641468] [2024-11-16 08:09:17,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787641468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:17,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:17,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:17,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045136101] [2024-11-16 08:09:17,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:17,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:17,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:17,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:17,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:17,588 INFO L87 Difference]: Start difference. First operand 258 states and 414 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 08:09:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:17,642 INFO L93 Difference]: Finished difference Result 507 states and 814 transitions. [2024-11-16 08:09:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:17,646 INFO L225 Difference]: With dead ends: 507 [2024-11-16 08:09:17,646 INFO L226 Difference]: Without dead ends: 258 [2024-11-16 08:09:17,647 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 08:09:17,651 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 212 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:17,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 226 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-16 08:09:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2024-11-16 08:09:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.5642023346303502) internal successors, (402), 257 states have internal predecessors, (402), 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 08:09:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 402 transitions. [2024-11-16 08:09:17,677 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 402 transitions. Word has length 40 [2024-11-16 08:09:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:17,677 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 402 transitions. [2024-11-16 08:09:17,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 08:09:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 402 transitions. [2024-11-16 08:09:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:17,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:17,681 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] [2024-11-16 08:09:17,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:09:17,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:17,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash -162451434, now seen corresponding path program 1 times [2024-11-16 08:09:17,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:17,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900023602] [2024-11-16 08:09:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:17,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:17,757 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 08:09:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:17,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900023602] [2024-11-16 08:09:17,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900023602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:17,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:17,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030014171] [2024-11-16 08:09:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:17,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:17,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:17,762 INFO L87 Difference]: Start difference. First operand 258 states and 402 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:17,858 INFO L93 Difference]: Finished difference Result 714 states and 1106 transitions. [2024-11-16 08:09:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:17,864 INFO L225 Difference]: With dead ends: 714 [2024-11-16 08:09:17,864 INFO L226 Difference]: Without dead ends: 466 [2024-11-16 08:09:17,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:17,869 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 415 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:17,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 523 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-16 08:09:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 258. [2024-11-16 08:09:17,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.5525291828793775) internal successors, (399), 257 states have internal predecessors, (399), 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 08:09:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 399 transitions. [2024-11-16 08:09:17,888 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 399 transitions. Word has length 40 [2024-11-16 08:09:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:17,889 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 399 transitions. [2024-11-16 08:09:17,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 399 transitions. [2024-11-16 08:09:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:17,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:17,890 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] [2024-11-16 08:09:17,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:09:17,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:17,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash 188348503, now seen corresponding path program 1 times [2024-11-16 08:09:17,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:17,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502457394] [2024-11-16 08:09:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:17,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:17,949 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 08:09:17,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:17,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502457394] [2024-11-16 08:09:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502457394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:17,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:17,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301323537] [2024-11-16 08:09:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:17,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:17,952 INFO L87 Difference]: Start difference. First operand 258 states and 399 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:18,031 INFO L93 Difference]: Finished difference Result 729 states and 1121 transitions. [2024-11-16 08:09:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:18,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:18,035 INFO L225 Difference]: With dead ends: 729 [2024-11-16 08:09:18,036 INFO L226 Difference]: Without dead ends: 483 [2024-11-16 08:09:18,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:18,039 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 423 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:18,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 545 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-16 08:09:18,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 264. [2024-11-16 08:09:18,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.5361216730038023) internal successors, (404), 263 states have internal predecessors, (404), 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 08:09:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 404 transitions. [2024-11-16 08:09:18,059 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 404 transitions. Word has length 40 [2024-11-16 08:09:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,059 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 404 transitions. [2024-11-16 08:09:18,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 404 transitions. [2024-11-16 08:09:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:18,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,063 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] [2024-11-16 08:09:18,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:09:18,063 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 881450200, now seen corresponding path program 1 times [2024-11-16 08:09:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613220926] [2024-11-16 08:09:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,138 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 08:09:18,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613220926] [2024-11-16 08:09:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613220926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:18,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735771177] [2024-11-16 08:09:18,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:18,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:18,143 INFO L87 Difference]: Start difference. First operand 264 states and 404 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:18,253 INFO L93 Difference]: Finished difference Result 919 states and 1393 transitions. [2024-11-16 08:09:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:18,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:18,256 INFO L225 Difference]: With dead ends: 919 [2024-11-16 08:09:18,257 INFO L226 Difference]: Without dead ends: 668 [2024-11-16 08:09:18,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:18,259 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 418 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:18,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 659 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-16 08:09:18,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 443. [2024-11-16 08:09:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.51131221719457) internal successors, (668), 442 states have internal predecessors, (668), 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 08:09:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 668 transitions. [2024-11-16 08:09:18,285 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 668 transitions. Word has length 40 [2024-11-16 08:09:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,286 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 668 transitions. [2024-11-16 08:09:18,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,286 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 668 transitions. [2024-11-16 08:09:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 08:09:18,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,290 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] [2024-11-16 08:09:18,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:09:18,304 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 626713655, now seen corresponding path program 1 times [2024-11-16 08:09:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63144194] [2024-11-16 08:09:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,359 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 08:09:18,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63144194] [2024-11-16 08:09:18,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63144194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:18,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016192681] [2024-11-16 08:09:18,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:18,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:18,364 INFO L87 Difference]: Start difference. First operand 443 states and 668 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:18,477 INFO L93 Difference]: Finished difference Result 1357 states and 2043 transitions. [2024-11-16 08:09:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:09:18,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 08:09:18,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:18,484 INFO L225 Difference]: With dead ends: 1357 [2024-11-16 08:09:18,484 INFO L226 Difference]: Without dead ends: 928 [2024-11-16 08:09:18,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:18,486 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 557 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:18,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 640 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:18,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-16 08:09:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 784. [2024-11-16 08:09:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.4929757343550447) internal successors, (1169), 783 states have internal predecessors, (1169), 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 08:09:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1169 transitions. [2024-11-16 08:09:18,523 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1169 transitions. Word has length 40 [2024-11-16 08:09:18,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,525 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1169 transitions. [2024-11-16 08:09:18,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 08:09:18,525 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1169 transitions. [2024-11-16 08:09:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:09:18,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,527 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] [2024-11-16 08:09:18,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:09:18,527 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1997365752, now seen corresponding path program 1 times [2024-11-16 08:09:18,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344051820] [2024-11-16 08:09:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,595 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 08:09:18,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344051820] [2024-11-16 08:09:18,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344051820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:18,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284308075] [2024-11-16 08:09:18,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:18,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:18,599 INFO L87 Difference]: Start difference. First operand 784 states and 1169 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 08:09:18,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:18,656 INFO L93 Difference]: Finished difference Result 1917 states and 2859 transitions. [2024-11-16 08:09:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:18,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2024-11-16 08:09:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:18,662 INFO L225 Difference]: With dead ends: 1917 [2024-11-16 08:09:18,662 INFO L226 Difference]: Without dead ends: 1157 [2024-11-16 08:09:18,664 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 08:09:18,666 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 198 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:18,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 387 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:18,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-16 08:09:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1154. [2024-11-16 08:09:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.4865568083261058) internal successors, (1714), 1153 states have internal predecessors, (1714), 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 08:09:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1714 transitions. [2024-11-16 08:09:18,729 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1714 transitions. Word has length 41 [2024-11-16 08:09:18,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,729 INFO L471 AbstractCegarLoop]: Abstraction has 1154 states and 1714 transitions. [2024-11-16 08:09:18,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 08:09:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1714 transitions. [2024-11-16 08:09:18,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:09:18,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,731 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] [2024-11-16 08:09:18,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:09:18,731 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1037762890, now seen corresponding path program 1 times [2024-11-16 08:09:18,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91627518] [2024-11-16 08:09:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,811 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 08:09:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91627518] [2024-11-16 08:09:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91627518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408836039] [2024-11-16 08:09:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:18,813 INFO L87 Difference]: Start difference. First operand 1154 states and 1714 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:18,960 INFO L93 Difference]: Finished difference Result 3106 states and 4623 transitions. [2024-11-16 08:09:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:09:18,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-11-16 08:09:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:18,968 INFO L225 Difference]: With dead ends: 3106 [2024-11-16 08:09:18,968 INFO L226 Difference]: Without dead ends: 1969 [2024-11-16 08:09:18,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:18,972 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 538 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:18,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 506 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-16 08:09:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1268. [2024-11-16 08:09:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1267 states have (on average 1.4846093133385951) internal successors, (1881), 1267 states have internal predecessors, (1881), 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 08:09:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1881 transitions. [2024-11-16 08:09:19,022 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1881 transitions. Word has length 41 [2024-11-16 08:09:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:19,022 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1881 transitions. [2024-11-16 08:09:19,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1881 transitions. [2024-11-16 08:09:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:09:19,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:19,023 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] [2024-11-16 08:09:19,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:09:19,023 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:19,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash -826411977, now seen corresponding path program 1 times [2024-11-16 08:09:19,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:19,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392002766] [2024-11-16 08:09:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:19,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:19,071 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 08:09:19,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:19,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392002766] [2024-11-16 08:09:19,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392002766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:19,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:19,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251986547] [2024-11-16 08:09:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:19,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:19,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:19,074 INFO L87 Difference]: Start difference. First operand 1268 states and 1881 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:19,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:19,205 INFO L93 Difference]: Finished difference Result 3272 states and 4831 transitions. [2024-11-16 08:09:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:09:19,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-11-16 08:09:19,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:19,212 INFO L225 Difference]: With dead ends: 3272 [2024-11-16 08:09:19,213 INFO L226 Difference]: Without dead ends: 2039 [2024-11-16 08:09:19,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:19,215 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 542 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:19,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 370 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:19,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2024-11-16 08:09:19,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1268. [2024-11-16 08:09:19,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1267 states have (on average 1.468034727703236) internal successors, (1860), 1267 states have internal predecessors, (1860), 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 08:09:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1860 transitions. [2024-11-16 08:09:19,268 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1860 transitions. Word has length 41 [2024-11-16 08:09:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:19,270 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1860 transitions. [2024-11-16 08:09:19,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:19,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1860 transitions. [2024-11-16 08:09:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:09:19,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:19,271 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] [2024-11-16 08:09:19,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:09:19,272 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:19,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1670883848, now seen corresponding path program 1 times [2024-11-16 08:09:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:19,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483664275] [2024-11-16 08:09:19,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:19,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:19,329 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 08:09:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483664275] [2024-11-16 08:09:19,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483664275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:19,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:19,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:19,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445565865] [2024-11-16 08:09:19,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:19,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:19,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:19,332 INFO L87 Difference]: Start difference. First operand 1268 states and 1860 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:19,434 INFO L93 Difference]: Finished difference Result 2899 states and 4249 transitions. [2024-11-16 08:09:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:09:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-11-16 08:09:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:19,440 INFO L225 Difference]: With dead ends: 2899 [2024-11-16 08:09:19,441 INFO L226 Difference]: Without dead ends: 1674 [2024-11-16 08:09:19,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:19,443 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 543 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:19,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 411 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:19,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-16 08:09:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1424. [2024-11-16 08:09:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 1.4560787069571328) internal successors, (2072), 1423 states have internal predecessors, (2072), 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 08:09:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2072 transitions. [2024-11-16 08:09:19,495 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2072 transitions. Word has length 41 [2024-11-16 08:09:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:19,496 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 2072 transitions. [2024-11-16 08:09:19,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 08:09:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2072 transitions. [2024-11-16 08:09:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:09:19,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:19,497 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] [2024-11-16 08:09:19,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:09:19,497 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:19,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash -317574151, now seen corresponding path program 1 times [2024-11-16 08:09:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:19,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784103364] [2024-11-16 08:09:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:19,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:19,526 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 08:09:19,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:19,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784103364] [2024-11-16 08:09:19,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784103364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:19,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:19,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:19,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392085430] [2024-11-16 08:09:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:19,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:19,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:19,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:19,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:19,529 INFO L87 Difference]: Start difference. First operand 1424 states and 2072 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 08:09:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:19,601 INFO L93 Difference]: Finished difference Result 3150 states and 4577 transitions. [2024-11-16 08:09:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2024-11-16 08:09:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:19,608 INFO L225 Difference]: With dead ends: 3150 [2024-11-16 08:09:19,608 INFO L226 Difference]: Without dead ends: 1747 [2024-11-16 08:09:19,611 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 08:09:19,612 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 137 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:19,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 364 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:19,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-11-16 08:09:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1744. [2024-11-16 08:09:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4434882386689616) internal successors, (2516), 1743 states have internal predecessors, (2516), 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 08:09:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2516 transitions. [2024-11-16 08:09:19,683 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2516 transitions. Word has length 41 [2024-11-16 08:09:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:19,684 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2516 transitions. [2024-11-16 08:09:19,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 08:09:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2516 transitions. [2024-11-16 08:09:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:09:19,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:19,685 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:19,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:09:19,686 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:19,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1796676571, now seen corresponding path program 1 times [2024-11-16 08:09:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:19,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925223940] [2024-11-16 08:09:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:19,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:19,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925223940] [2024-11-16 08:09:19,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925223940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:19,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:19,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790672000] [2024-11-16 08:09:19,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:19,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:19,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:19,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:19,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:19,719 INFO L87 Difference]: Start difference. First operand 1744 states and 2516 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 08:09:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:19,801 INFO L93 Difference]: Finished difference Result 4264 states and 6165 transitions. [2024-11-16 08:09:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2024-11-16 08:09:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:19,811 INFO L225 Difference]: With dead ends: 4264 [2024-11-16 08:09:19,811 INFO L226 Difference]: Without dead ends: 2561 [2024-11-16 08:09:19,814 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 08:09:19,814 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 95 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:19,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 481 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-16 08:09:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2558. [2024-11-16 08:09:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.4352757137270238) internal successors, (3670), 2557 states have internal predecessors, (3670), 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 08:09:19,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3670 transitions. [2024-11-16 08:09:19,920 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3670 transitions. Word has length 55 [2024-11-16 08:09:19,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:19,920 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3670 transitions. [2024-11-16 08:09:19,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 08:09:19,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3670 transitions. [2024-11-16 08:09:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:09:19,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:19,922 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:19,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:09:19,922 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:19,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:19,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1365100132, now seen corresponding path program 1 times [2024-11-16 08:09:19,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:19,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996968136] [2024-11-16 08:09:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:19,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:09:19,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996968136] [2024-11-16 08:09:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996968136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:19,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682481914] [2024-11-16 08:09:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:19,962 INFO L87 Difference]: Start difference. First operand 2558 states and 3670 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 08:09:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:20,042 INFO L93 Difference]: Finished difference Result 5039 states and 7241 transitions. [2024-11-16 08:09:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:20,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 55 [2024-11-16 08:09:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:20,051 INFO L225 Difference]: With dead ends: 5039 [2024-11-16 08:09:20,052 INFO L226 Difference]: Without dead ends: 2522 [2024-11-16 08:09:20,055 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 08:09:20,056 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:20,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 210 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:20,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2024-11-16 08:09:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2522. [2024-11-16 08:09:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2521 states have (on average 1.4371281237604125) internal successors, (3623), 2521 states have internal predecessors, (3623), 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 08:09:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3623 transitions. [2024-11-16 08:09:20,163 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3623 transitions. Word has length 55 [2024-11-16 08:09:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:20,163 INFO L471 AbstractCegarLoop]: Abstraction has 2522 states and 3623 transitions. [2024-11-16 08:09:20,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 08:09:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3623 transitions. [2024-11-16 08:09:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:09:20,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:20,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:20,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:09:20,165 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:20,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1823066475, now seen corresponding path program 1 times [2024-11-16 08:09:20,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:20,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496662164] [2024-11-16 08:09:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:20,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:20,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:20,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496662164] [2024-11-16 08:09:20,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496662164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:20,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:20,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:20,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192841777] [2024-11-16 08:09:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:20,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:20,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:20,220 INFO L87 Difference]: Start difference. First operand 2522 states and 3623 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 08:09:20,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:20,377 INFO L93 Difference]: Finished difference Result 6378 states and 9192 transitions. [2024-11-16 08:09:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:20,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-16 08:09:20,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:20,391 INFO L225 Difference]: With dead ends: 6378 [2024-11-16 08:09:20,391 INFO L226 Difference]: Without dead ends: 3897 [2024-11-16 08:09:20,395 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 08:09:20,395 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 94 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:20,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 459 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:20,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2024-11-16 08:09:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3894. [2024-11-16 08:09:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3893 states have (on average 1.4318006678653994) internal successors, (5574), 3893 states have internal predecessors, (5574), 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 08:09:20,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5574 transitions. [2024-11-16 08:09:20,548 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5574 transitions. Word has length 56 [2024-11-16 08:09:20,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:20,549 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5574 transitions. [2024-11-16 08:09:20,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 08:09:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5574 transitions. [2024-11-16 08:09:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:09:20,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:20,551 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:20,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:09:20,552 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:20,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -689875882, now seen corresponding path program 1 times [2024-11-16 08:09:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:20,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180191003] [2024-11-16 08:09:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:09:20,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:20,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180191003] [2024-11-16 08:09:20,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180191003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:20,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:20,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:20,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972329414] [2024-11-16 08:09:20,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:20,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:20,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:20,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:20,584 INFO L87 Difference]: Start difference. First operand 3894 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 08:09:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:20,679 INFO L93 Difference]: Finished difference Result 7709 states and 11049 transitions. [2024-11-16 08:09:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:20,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 56 [2024-11-16 08:09:20,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:20,695 INFO L225 Difference]: With dead ends: 7709 [2024-11-16 08:09:20,695 INFO L226 Difference]: Without dead ends: 3859 [2024-11-16 08:09:20,700 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 08:09:20,701 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 205 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:20,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 209 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2024-11-16 08:09:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3859. [2024-11-16 08:09:20,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3858 states have (on average 1.4331259720062208) internal successors, (5529), 3858 states have internal predecessors, (5529), 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 08:09:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5529 transitions. [2024-11-16 08:09:20,843 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5529 transitions. Word has length 56 [2024-11-16 08:09:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:20,843 INFO L471 AbstractCegarLoop]: Abstraction has 3859 states and 5529 transitions. [2024-11-16 08:09:20,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 08:09:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5529 transitions. [2024-11-16 08:09:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 08:09:20,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:20,845 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:20,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:09:20,845 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:20,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1579921056, now seen corresponding path program 1 times [2024-11-16 08:09:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:20,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972365003] [2024-11-16 08:09:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972365003] [2024-11-16 08:09:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972365003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:20,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210975723] [2024-11-16 08:09:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:20,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:20,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:20,889 INFO L87 Difference]: Start difference. First operand 3859 states and 5529 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 08:09:21,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:21,085 INFO L93 Difference]: Finished difference Result 10210 states and 14747 transitions. [2024-11-16 08:09:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2024-11-16 08:09:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:21,110 INFO L225 Difference]: With dead ends: 10210 [2024-11-16 08:09:21,110 INFO L226 Difference]: Without dead ends: 6395 [2024-11-16 08:09:21,115 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 08:09:21,116 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:21,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 443 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6395 states. [2024-11-16 08:09:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6395 to 6392. [2024-11-16 08:09:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6392 states, 6391 states have (on average 1.4387419809106556) internal successors, (9195), 6391 states have internal predecessors, (9195), 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 08:09:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6392 states to 6392 states and 9195 transitions. [2024-11-16 08:09:21,348 INFO L78 Accepts]: Start accepts. Automaton has 6392 states and 9195 transitions. Word has length 57 [2024-11-16 08:09:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:21,349 INFO L471 AbstractCegarLoop]: Abstraction has 6392 states and 9195 transitions. [2024-11-16 08:09:21,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 08:09:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6392 states and 9195 transitions. [2024-11-16 08:09:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 08:09:21,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:21,351 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:21,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:09:21,352 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:21,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash -446730463, now seen corresponding path program 1 times [2024-11-16 08:09:21,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:21,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329099847] [2024-11-16 08:09:21,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:21,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:09:21,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329099847] [2024-11-16 08:09:21,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329099847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:21,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:21,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:21,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124996656] [2024-11-16 08:09:21,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:21,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:21,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:21,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:21,381 INFO L87 Difference]: Start difference. First operand 6392 states and 9195 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 08:09:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:21,575 INFO L93 Difference]: Finished difference Result 12703 states and 18291 transitions. [2024-11-16 08:09:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 57 [2024-11-16 08:09:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:21,590 INFO L225 Difference]: With dead ends: 12703 [2024-11-16 08:09:21,592 INFO L226 Difference]: Without dead ends: 6355 [2024-11-16 08:09:21,602 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 08:09:21,602 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 203 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:21,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 208 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2024-11-16 08:09:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6355. [2024-11-16 08:09:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6355 states, 6354 states have (on average 1.4398803903053194) internal successors, (9149), 6354 states have internal predecessors, (9149), 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 08:09:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6355 states to 6355 states and 9149 transitions. [2024-11-16 08:09:21,834 INFO L78 Accepts]: Start accepts. Automaton has 6355 states and 9149 transitions. Word has length 57 [2024-11-16 08:09:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:21,834 INFO L471 AbstractCegarLoop]: Abstraction has 6355 states and 9149 transitions. [2024-11-16 08:09:21,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 08:09:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6355 states and 9149 transitions. [2024-11-16 08:09:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:09:21,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:21,837 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:21,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:09:21,837 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:21,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1410880784, now seen corresponding path program 1 times [2024-11-16 08:09:21,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:21,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061231564] [2024-11-16 08:09:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:21,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:21,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:21,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061231564] [2024-11-16 08:09:21,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061231564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:21,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:21,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:21,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881419354] [2024-11-16 08:09:21,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:21,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:21,895 INFO L87 Difference]: Start difference. First operand 6355 states and 9149 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 08:09:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:22,196 INFO L93 Difference]: Finished difference Result 15714 states and 22522 transitions. [2024-11-16 08:09:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-11-16 08:09:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:22,215 INFO L225 Difference]: With dead ends: 15714 [2024-11-16 08:09:22,215 INFO L226 Difference]: Without dead ends: 8333 [2024-11-16 08:09:22,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:22,225 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 463 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:22,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 358 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8333 states. [2024-11-16 08:09:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8333 to 8333. [2024-11-16 08:09:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8333 states, 8332 states have (on average 1.408425348055689) internal successors, (11735), 8332 states have internal predecessors, (11735), 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 08:09:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8333 states to 8333 states and 11735 transitions. [2024-11-16 08:09:22,513 INFO L78 Accepts]: Start accepts. Automaton has 8333 states and 11735 transitions. Word has length 58 [2024-11-16 08:09:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:22,514 INFO L471 AbstractCegarLoop]: Abstraction has 8333 states and 11735 transitions. [2024-11-16 08:09:22,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 08:09:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 8333 states and 11735 transitions. [2024-11-16 08:09:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:09:22,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:22,516 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:09:22,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:09:22,517 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:22,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:22,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2103454067, now seen corresponding path program 1 times [2024-11-16 08:09:22,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:22,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142741779] [2024-11-16 08:09:22,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:22,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:22,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142741779] [2024-11-16 08:09:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142741779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:09:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509514698] [2024-11-16 08:09:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:22,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:09:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:09:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:22,579 INFO L87 Difference]: Start difference. First operand 8333 states and 11735 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 08:09:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:23,286 INFO L93 Difference]: Finished difference Result 23298 states and 32747 transitions. [2024-11-16 08:09:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:09:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2024-11-16 08:09:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:23,320 INFO L225 Difference]: With dead ends: 23298 [2024-11-16 08:09:23,321 INFO L226 Difference]: Without dead ends: 14997 [2024-11-16 08:09:23,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:23,337 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 801 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:23,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 603 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14997 states. [2024-11-16 08:09:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14997 to 9956. [2024-11-16 08:09:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9956 states, 9955 states have (on average 1.388247112004018) internal successors, (13820), 9955 states have internal predecessors, (13820), 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 08:09:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9956 states to 9956 states and 13820 transitions. [2024-11-16 08:09:23,744 INFO L78 Accepts]: Start accepts. Automaton has 9956 states and 13820 transitions. Word has length 65 [2024-11-16 08:09:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:23,744 INFO L471 AbstractCegarLoop]: Abstraction has 9956 states and 13820 transitions. [2024-11-16 08:09:23,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 08:09:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9956 states and 13820 transitions. [2024-11-16 08:09:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:09:23,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:23,750 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 08:09:23,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:09:23,751 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:23,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash -760884678, now seen corresponding path program 1 times [2024-11-16 08:09:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:23,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805316987] [2024-11-16 08:09:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:09:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:23,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805316987] [2024-11-16 08:09:23,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805316987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567861585] [2024-11-16 08:09:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:23,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:23,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:23,820 INFO L87 Difference]: Start difference. First operand 9956 states and 13820 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 08:09:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:24,239 INFO L93 Difference]: Finished difference Result 23716 states and 32751 transitions. [2024-11-16 08:09:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 111 [2024-11-16 08:09:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:24,269 INFO L225 Difference]: With dead ends: 23716 [2024-11-16 08:09:24,269 INFO L226 Difference]: Without dead ends: 13784 [2024-11-16 08:09:24,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:24,283 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 404 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:24,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 343 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:24,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13784 states. [2024-11-16 08:09:24,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13784 to 8876. [2024-11-16 08:09:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8876 states, 8875 states have (on average 1.3770140845070422) internal successors, (12221), 8875 states have internal predecessors, (12221), 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 08:09:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8876 states to 8876 states and 12221 transitions. [2024-11-16 08:09:24,682 INFO L78 Accepts]: Start accepts. Automaton has 8876 states and 12221 transitions. Word has length 111 [2024-11-16 08:09:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:24,682 INFO L471 AbstractCegarLoop]: Abstraction has 8876 states and 12221 transitions. [2024-11-16 08:09:24,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 08:09:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 8876 states and 12221 transitions. [2024-11-16 08:09:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:09:24,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:24,689 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 08:09:24,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:09:24,689 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:24,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:24,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1846826266, now seen corresponding path program 1 times [2024-11-16 08:09:24,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:24,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113635582] [2024-11-16 08:09:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:24,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:24,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113635582] [2024-11-16 08:09:24,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113635582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:24,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:24,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:24,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253181324] [2024-11-16 08:09:24,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:24,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:24,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:24,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:24,727 INFO L87 Difference]: Start difference. First operand 8876 states and 12221 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 08:09:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:24,993 INFO L93 Difference]: Finished difference Result 18114 states and 24947 transitions. [2024-11-16 08:09:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2024-11-16 08:09:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:25,016 INFO L225 Difference]: With dead ends: 18114 [2024-11-16 08:09:25,016 INFO L226 Difference]: Without dead ends: 9269 [2024-11-16 08:09:25,029 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 08:09:25,030 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 138 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:25,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 359 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:25,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9269 states. [2024-11-16 08:09:25,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9269 to 9221. [2024-11-16 08:09:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9221 states, 9220 states have (on average 1.3470715835140998) internal successors, (12420), 9220 states have internal predecessors, (12420), 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 08:09:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9221 states to 9221 states and 12420 transitions. [2024-11-16 08:09:25,526 INFO L78 Accepts]: Start accepts. Automaton has 9221 states and 12420 transitions. Word has length 111 [2024-11-16 08:09:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:25,527 INFO L471 AbstractCegarLoop]: Abstraction has 9221 states and 12420 transitions. [2024-11-16 08:09:25,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 08:09:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 9221 states and 12420 transitions. [2024-11-16 08:09:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 08:09:25,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:25,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 08:09:25,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:09:25,534 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1817859400, now seen corresponding path program 1 times [2024-11-16 08:09:25,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:25,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835411316] [2024-11-16 08:09:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:25,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:25,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835411316] [2024-11-16 08:09:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835411316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:25,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:25,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892531834] [2024-11-16 08:09:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:25,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:25,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:25,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:25,578 INFO L87 Difference]: Start difference. First operand 9221 states and 12420 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 08:09:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:26,081 INFO L93 Difference]: Finished difference Result 19010 states and 25605 transitions. [2024-11-16 08:09:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:26,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2024-11-16 08:09:26,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:26,101 INFO L225 Difference]: With dead ends: 19010 [2024-11-16 08:09:26,101 INFO L226 Difference]: Without dead ends: 9833 [2024-11-16 08:09:26,115 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 08:09:26,117 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 140 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:26,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 358 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2024-11-16 08:09:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 9761. [2024-11-16 08:09:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9761 states, 9760 states have (on average 1.3170081967213114) internal successors, (12854), 9760 states have internal predecessors, (12854), 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 08:09:26,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9761 states to 9761 states and 12854 transitions. [2024-11-16 08:09:26,541 INFO L78 Accepts]: Start accepts. Automaton has 9761 states and 12854 transitions. Word has length 112 [2024-11-16 08:09:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:26,542 INFO L471 AbstractCegarLoop]: Abstraction has 9761 states and 12854 transitions. [2024-11-16 08:09:26,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 08:09:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9761 states and 12854 transitions. [2024-11-16 08:09:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:09:26,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:26,550 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 08:09:26,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:09:26,550 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:26,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1269007932, now seen corresponding path program 1 times [2024-11-16 08:09:26,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:26,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283637484] [2024-11-16 08:09:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:26,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:26,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:26,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283637484] [2024-11-16 08:09:26,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283637484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:26,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:26,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:26,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549385940] [2024-11-16 08:09:26,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:26,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:26,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:26,590 INFO L87 Difference]: Start difference. First operand 9761 states and 12854 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 08:09:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:26,893 INFO L93 Difference]: Finished difference Result 19784 states and 26114 transitions. [2024-11-16 08:09:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:26,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2024-11-16 08:09:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:26,910 INFO L225 Difference]: With dead ends: 19784 [2024-11-16 08:09:26,910 INFO L226 Difference]: Without dead ends: 10089 [2024-11-16 08:09:26,921 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 08:09:26,922 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 139 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:26,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 357 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2024-11-16 08:09:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 9217. [2024-11-16 08:09:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9217 states, 9216 states have (on average 1.2721354166666667) internal successors, (11724), 9216 states have internal predecessors, (11724), 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 08:09:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9217 states to 9217 states and 11724 transitions. [2024-11-16 08:09:27,254 INFO L78 Accepts]: Start accepts. Automaton has 9217 states and 11724 transitions. Word has length 113 [2024-11-16 08:09:27,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:27,254 INFO L471 AbstractCegarLoop]: Abstraction has 9217 states and 11724 transitions. [2024-11-16 08:09:27,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 08:09:27,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9217 states and 11724 transitions. [2024-11-16 08:09:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:09:27,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:27,261 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 08:09:27,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:09:27,262 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:27,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash 279341462, now seen corresponding path program 1 times [2024-11-16 08:09:27,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:27,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253030850] [2024-11-16 08:09:27,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:09:27,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:27,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253030850] [2024-11-16 08:09:27,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253030850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:27,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:27,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088184683] [2024-11-16 08:09:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:27,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:27,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:27,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:27,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:27,333 INFO L87 Difference]: Start difference. First operand 9217 states and 11724 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:09:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:27,746 INFO L93 Difference]: Finished difference Result 17387 states and 22042 transitions. [2024-11-16 08:09:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:27,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 114 [2024-11-16 08:09:27,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:27,758 INFO L225 Difference]: With dead ends: 17387 [2024-11-16 08:09:27,759 INFO L226 Difference]: Without dead ends: 7178 [2024-11-16 08:09:27,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:27,768 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 488 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:27,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 449 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7178 states. [2024-11-16 08:09:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7178 to 7047. [2024-11-16 08:09:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 7046 states have (on average 1.239426625035481) internal successors, (8733), 7046 states have internal predecessors, (8733), 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 08:09:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 8733 transitions. [2024-11-16 08:09:28,016 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 8733 transitions. Word has length 114 [2024-11-16 08:09:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:28,016 INFO L471 AbstractCegarLoop]: Abstraction has 7047 states and 8733 transitions. [2024-11-16 08:09:28,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:09:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 8733 transitions. [2024-11-16 08:09:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-16 08:09:28,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:28,032 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2024-11-16 08:09:28,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:09:28,032 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:28,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:28,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1364859844, now seen corresponding path program 1 times [2024-11-16 08:09:28,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:28,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955294539] [2024-11-16 08:09:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:28,072 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:09:28,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955294539] [2024-11-16 08:09:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955294539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:28,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:28,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:28,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704224061] [2024-11-16 08:09:28,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:28,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:28,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:28,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:28,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:28,074 INFO L87 Difference]: Start difference. First operand 7047 states and 8733 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 08:09:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:28,311 INFO L93 Difference]: Finished difference Result 13526 states and 16740 transitions. [2024-11-16 08:09:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:28,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 148 [2024-11-16 08:09:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:28,323 INFO L225 Difference]: With dead ends: 13526 [2024-11-16 08:09:28,324 INFO L226 Difference]: Without dead ends: 6989 [2024-11-16 08:09:28,330 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 08:09:28,330 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 38 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:28,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 343 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2024-11-16 08:09:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 6989. [2024-11-16 08:09:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 6988 states have (on average 1.2339725243274184) internal successors, (8623), 6988 states have internal predecessors, (8623), 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 08:09:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 8623 transitions. [2024-11-16 08:09:28,667 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 8623 transitions. Word has length 148 [2024-11-16 08:09:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:28,667 INFO L471 AbstractCegarLoop]: Abstraction has 6989 states and 8623 transitions. [2024-11-16 08:09:28,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 08:09:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 8623 transitions. [2024-11-16 08:09:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:09:28,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:28,680 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 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] [2024-11-16 08:09:28,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:09:28,681 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:28,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 75290486, now seen corresponding path program 1 times [2024-11-16 08:09:28,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:28,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118212308] [2024-11-16 08:09:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:28,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:09:28,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:28,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118212308] [2024-11-16 08:09:28,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118212308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:28,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:28,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:28,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324294779] [2024-11-16 08:09:28,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:28,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:28,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:28,772 INFO L87 Difference]: Start difference. First operand 6989 states and 8623 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 08:09:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:29,016 INFO L93 Difference]: Finished difference Result 12525 states and 15473 transitions. [2024-11-16 08:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:29,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 166 [2024-11-16 08:09:29,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:29,027 INFO L225 Difference]: With dead ends: 12525 [2024-11-16 08:09:29,027 INFO L226 Difference]: Without dead ends: 6880 [2024-11-16 08:09:29,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:29,033 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 349 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:29,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 363 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6880 states. [2024-11-16 08:09:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6880 to 6877. [2024-11-16 08:09:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 1.2164048865619546) internal successors, (8364), 6876 states have internal predecessors, (8364), 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 08:09:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 8364 transitions. [2024-11-16 08:09:29,287 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 8364 transitions. Word has length 166 [2024-11-16 08:09:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:29,287 INFO L471 AbstractCegarLoop]: Abstraction has 6877 states and 8364 transitions. [2024-11-16 08:09:29,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 08:09:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 8364 transitions. [2024-11-16 08:09:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 08:09:29,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:29,298 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 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] [2024-11-16 08:09:29,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:09:29,298 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:29,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1455947809, now seen corresponding path program 1 times [2024-11-16 08:09:29,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:29,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866343423] [2024-11-16 08:09:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:29,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 08:09:29,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:29,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866343423] [2024-11-16 08:09:29,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866343423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:29,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:29,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:29,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237310857] [2024-11-16 08:09:29,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:29,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:29,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:29,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:29,347 INFO L87 Difference]: Start difference. First operand 6877 states and 8364 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 08:09:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:29,694 INFO L93 Difference]: Finished difference Result 13250 states and 16099 transitions. [2024-11-16 08:09:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 172 [2024-11-16 08:09:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:29,705 INFO L225 Difference]: With dead ends: 13250 [2024-11-16 08:09:29,706 INFO L226 Difference]: Without dead ends: 6894 [2024-11-16 08:09:29,711 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 08:09:29,711 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 25 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:29,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 342 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2024-11-16 08:09:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6834. [2024-11-16 08:09:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 6833 states have (on average 1.2116200790282452) internal successors, (8279), 6833 states have internal predecessors, (8279), 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 08:09:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 8279 transitions. [2024-11-16 08:09:30,115 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 8279 transitions. Word has length 172 [2024-11-16 08:09:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:30,116 INFO L471 AbstractCegarLoop]: Abstraction has 6834 states and 8279 transitions. [2024-11-16 08:09:30,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 08:09:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 8279 transitions. [2024-11-16 08:09:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 08:09:30,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:30,130 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 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] [2024-11-16 08:09:30,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:09:30,131 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:30,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1647997393, now seen corresponding path program 1 times [2024-11-16 08:09:30,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459471992] [2024-11-16 08:09:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 08:09:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459471992] [2024-11-16 08:09:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459471992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512105906] [2024-11-16 08:09:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:30,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:30,190 INFO L87 Difference]: Start difference. First operand 6834 states and 8279 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 08:09:30,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:30,549 INFO L93 Difference]: Finished difference Result 13187 states and 15958 transitions. [2024-11-16 08:09:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:30,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 172 [2024-11-16 08:09:30,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:30,562 INFO L225 Difference]: With dead ends: 13187 [2024-11-16 08:09:30,562 INFO L226 Difference]: Without dead ends: 6863 [2024-11-16 08:09:30,569 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 08:09:30,570 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 25 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:30,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 338 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2024-11-16 08:09:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 6803. [2024-11-16 08:09:30,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6803 states, 6802 states have (on average 1.2065568950308734) internal successors, (8207), 6802 states have internal predecessors, (8207), 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 08:09:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 8207 transitions. [2024-11-16 08:09:30,947 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 8207 transitions. Word has length 172 [2024-11-16 08:09:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:30,947 INFO L471 AbstractCegarLoop]: Abstraction has 6803 states and 8207 transitions. [2024-11-16 08:09:30,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 08:09:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 8207 transitions. [2024-11-16 08:09:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 08:09:30,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:30,960 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:30,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:09:30,960 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:30,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:30,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1598192162, now seen corresponding path program 1 times [2024-11-16 08:09:30,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:30,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642725444] [2024-11-16 08:09:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:30,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 08:09:31,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:31,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642725444] [2024-11-16 08:09:31,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642725444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:31,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:31,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:31,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251137506] [2024-11-16 08:09:31,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:31,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:31,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:31,077 INFO L87 Difference]: Start difference. First operand 6803 states and 8207 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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 08:09:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:31,360 INFO L93 Difference]: Finished difference Result 10941 states and 13248 transitions. [2024-11-16 08:09:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:31,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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 179 [2024-11-16 08:09:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:31,369 INFO L225 Difference]: With dead ends: 10941 [2024-11-16 08:09:31,369 INFO L226 Difference]: Without dead ends: 4664 [2024-11-16 08:09:31,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:31,375 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 319 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:31,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 338 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:31,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4664 states. [2024-11-16 08:09:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4664 to 4661. [2024-11-16 08:09:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4661 states, 4660 states have (on average 1.1824034334763949) internal successors, (5510), 4660 states have internal predecessors, (5510), 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 08:09:31,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 5510 transitions. [2024-11-16 08:09:31,614 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 5510 transitions. Word has length 179 [2024-11-16 08:09:31,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:31,614 INFO L471 AbstractCegarLoop]: Abstraction has 4661 states and 5510 transitions. [2024-11-16 08:09:31,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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 08:09:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 5510 transitions. [2024-11-16 08:09:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 08:09:31,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:31,620 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 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] [2024-11-16 08:09:31,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:09:31,620 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:31,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1024943597, now seen corresponding path program 1 times [2024-11-16 08:09:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:31,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477057452] [2024-11-16 08:09:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 08:09:31,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:31,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477057452] [2024-11-16 08:09:31,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477057452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:31,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:31,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:31,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102980456] [2024-11-16 08:09:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:31,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:31,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:31,733 INFO L87 Difference]: Start difference. First operand 4661 states and 5510 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 08:09:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:31,921 INFO L93 Difference]: Finished difference Result 7414 states and 8770 transitions. [2024-11-16 08:09:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 179 [2024-11-16 08:09:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:31,928 INFO L225 Difference]: With dead ends: 7414 [2024-11-16 08:09:31,928 INFO L226 Difference]: Without dead ends: 2878 [2024-11-16 08:09:31,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:31,932 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 320 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:31,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 331 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2024-11-16 08:09:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2875. [2024-11-16 08:09:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2874 states have (on average 1.1565762004175366) internal successors, (3324), 2874 states have internal predecessors, (3324), 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 08:09:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3324 transitions. [2024-11-16 08:09:32,042 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3324 transitions. Word has length 179 [2024-11-16 08:09:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:32,042 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 3324 transitions. [2024-11-16 08:09:32,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 08:09:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3324 transitions. [2024-11-16 08:09:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-16 08:09:32,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:32,043 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:32,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:09:32,044 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:32,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2043322906, now seen corresponding path program 1 times [2024-11-16 08:09:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237364290] [2024-11-16 08:09:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-16 08:09:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:32,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237364290] [2024-11-16 08:09:32,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237364290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:32,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:32,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:32,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618672935] [2024-11-16 08:09:32,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:32,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:32,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:32,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:32,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:32,093 INFO L87 Difference]: Start difference. First operand 2875 states and 3324 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 08:09:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:32,210 INFO L93 Difference]: Finished difference Result 5163 states and 6007 transitions. [2024-11-16 08:09:32,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:32,211 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 223 [2024-11-16 08:09:32,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:32,218 INFO L225 Difference]: With dead ends: 5163 [2024-11-16 08:09:32,218 INFO L226 Difference]: Without dead ends: 2793 [2024-11-16 08:09:32,220 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 08:09:32,221 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:32,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-11-16 08:09:32,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2705. [2024-11-16 08:09:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2704 states have (on average 1.1449704142011834) internal successors, (3096), 2704 states have internal predecessors, (3096), 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 08:09:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 3096 transitions. [2024-11-16 08:09:32,345 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 3096 transitions. Word has length 223 [2024-11-16 08:09:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:32,345 INFO L471 AbstractCegarLoop]: Abstraction has 2705 states and 3096 transitions. [2024-11-16 08:09:32,345 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 08:09:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 3096 transitions. [2024-11-16 08:09:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-16 08:09:32,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:32,348 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:32,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:09:32,348 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:32,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -277549211, now seen corresponding path program 1 times [2024-11-16 08:09:32,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:32,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992484327] [2024-11-16 08:09:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:32,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 08:09:32,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:32,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992484327] [2024-11-16 08:09:32,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992484327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:32,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:32,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:32,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328865016] [2024-11-16 08:09:32,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:32,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:32,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:32,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:32,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:32,398 INFO L87 Difference]: Start difference. First operand 2705 states and 3096 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 08:09:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:32,535 INFO L93 Difference]: Finished difference Result 5786 states and 6663 transitions. [2024-11-16 08:09:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 233 [2024-11-16 08:09:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:32,543 INFO L225 Difference]: With dead ends: 5786 [2024-11-16 08:09:32,544 INFO L226 Difference]: Without dead ends: 3576 [2024-11-16 08:09:32,546 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 08:09:32,547 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 149 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:32,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 341 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2024-11-16 08:09:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3071. [2024-11-16 08:09:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3070 states have (on average 1.1335504885993486) internal successors, (3480), 3070 states have internal predecessors, (3480), 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 08:09:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 3480 transitions. [2024-11-16 08:09:32,646 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 3480 transitions. Word has length 233 [2024-11-16 08:09:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:32,647 INFO L471 AbstractCegarLoop]: Abstraction has 3071 states and 3480 transitions. [2024-11-16 08:09:32,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 08:09:32,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 3480 transitions. [2024-11-16 08:09:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-16 08:09:32,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:32,648 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:32,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 08:09:32,649 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:32,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash -558279924, now seen corresponding path program 1 times [2024-11-16 08:09:32,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:32,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339024537] [2024-11-16 08:09:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:32,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 08:09:33,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339024537] [2024-11-16 08:09:33,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339024537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:09:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376818310] [2024-11-16 08:09:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:33,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:09:33,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:09:33,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:09:33,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:09:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:33,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 08:09:33,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:09:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 113 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 08:09:33,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:09:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 113 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 08:09:34,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376818310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:09:34,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:09:34,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 27 [2024-11-16 08:09:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804928577] [2024-11-16 08:09:34,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:09:34,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 08:09:34,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:34,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 08:09:34,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:09:34,192 INFO L87 Difference]: Start difference. First operand 3071 states and 3480 transitions. Second operand has 27 states, 27 states have (on average 20.925925925925927) internal successors, (565), 27 states have internal predecessors, (565), 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 08:09:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:36,082 INFO L93 Difference]: Finished difference Result 12484 states and 14209 transitions. [2024-11-16 08:09:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-16 08:09:36,082 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 20.925925925925927) internal successors, (565), 27 states have internal predecessors, (565), 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 236 [2024-11-16 08:09:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:36,093 INFO L225 Difference]: With dead ends: 12484 [2024-11-16 08:09:36,093 INFO L226 Difference]: Without dead ends: 9893 [2024-11-16 08:09:36,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=608, Invalid=4362, Unknown=0, NotChecked=0, Total=4970 [2024-11-16 08:09:36,098 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 3634 mSDsluCounter, 10644 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3634 SdHoareTripleChecker+Valid, 11277 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:36,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3634 Valid, 11277 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:09:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9893 states. [2024-11-16 08:09:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9893 to 4342. [2024-11-16 08:09:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4341 states have (on average 1.1359133840129003) internal successors, (4931), 4341 states have internal predecessors, (4931), 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 08:09:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 4931 transitions. [2024-11-16 08:09:36,307 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 4931 transitions. Word has length 236 [2024-11-16 08:09:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:36,307 INFO L471 AbstractCegarLoop]: Abstraction has 4342 states and 4931 transitions. [2024-11-16 08:09:36,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 20.925925925925927) internal successors, (565), 27 states have internal predecessors, (565), 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 08:09:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 4931 transitions. [2024-11-16 08:09:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-16 08:09:36,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:36,311 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:09:36,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:09:36,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-16 08:09:36,512 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:36,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash -810771201, now seen corresponding path program 1 times [2024-11-16 08:09:36,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:36,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42743822] [2024-11-16 08:09:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-16 08:09:36,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42743822] [2024-11-16 08:09:36,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42743822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:36,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:36,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:36,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363392751] [2024-11-16 08:09:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:36,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:36,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:36,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:36,576 INFO L87 Difference]: Start difference. First operand 4342 states and 4931 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 08:09:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:36,726 INFO L93 Difference]: Finished difference Result 6686 states and 7576 transitions. [2024-11-16 08:09:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 318 [2024-11-16 08:09:36,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:36,734 INFO L225 Difference]: With dead ends: 6686 [2024-11-16 08:09:36,734 INFO L226 Difference]: Without dead ends: 2884 [2024-11-16 08:09:36,737 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 08:09:36,738 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 3 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:36,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 358 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2024-11-16 08:09:36,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2848. [2024-11-16 08:09:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2847 states have (on average 1.1176677204074463) internal successors, (3182), 2847 states have internal predecessors, (3182), 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 08:09:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3182 transitions. [2024-11-16 08:09:36,847 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3182 transitions. Word has length 318 [2024-11-16 08:09:36,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:36,847 INFO L471 AbstractCegarLoop]: Abstraction has 2848 states and 3182 transitions. [2024-11-16 08:09:36,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 08:09:36,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3182 transitions. [2024-11-16 08:09:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-16 08:09:36,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:36,850 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:09:36,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 08:09:36,850 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:36,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:36,851 INFO L85 PathProgramCache]: Analyzing trace with hash 363055690, now seen corresponding path program 1 times [2024-11-16 08:09:36,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:36,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823997349] [2024-11-16 08:09:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:36,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 08:09:36,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:36,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823997349] [2024-11-16 08:09:36,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823997349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:36,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:09:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678977476] [2024-11-16 08:09:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:36,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:09:36,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:36,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:09:36,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:09:36,994 INFO L87 Difference]: Start difference. First operand 2848 states and 3182 transitions. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 08:09:37,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:37,157 INFO L93 Difference]: Finished difference Result 5294 states and 5930 transitions. [2024-11-16 08:09:37,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:09:37,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 328 [2024-11-16 08:09:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:37,162 INFO L225 Difference]: With dead ends: 5294 [2024-11-16 08:09:37,163 INFO L226 Difference]: Without dead ends: 2849 [2024-11-16 08:09:37,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:09:37,164 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 219 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:37,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 272 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:09:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2024-11-16 08:09:37,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2848. [2024-11-16 08:09:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2847 states have (on average 1.1099402880224798) internal successors, (3160), 2847 states have internal predecessors, (3160), 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 08:09:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3160 transitions. [2024-11-16 08:09:37,263 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3160 transitions. Word has length 328 [2024-11-16 08:09:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:37,263 INFO L471 AbstractCegarLoop]: Abstraction has 2848 states and 3160 transitions. [2024-11-16 08:09:37,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 08:09:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3160 transitions. [2024-11-16 08:09:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-16 08:09:37,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:37,266 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:09:37,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 08:09:37,266 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:37,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1847964137, now seen corresponding path program 1 times [2024-11-16 08:09:37,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:37,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843266762] [2024-11-16 08:09:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:37,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-16 08:09:37,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:37,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843266762] [2024-11-16 08:09:37,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843266762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:37,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:37,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:37,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863320355] [2024-11-16 08:09:37,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:37,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:37,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:37,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:37,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:37,337 INFO L87 Difference]: Start difference. First operand 2848 states and 3160 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 08:09:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:37,412 INFO L93 Difference]: Finished difference Result 3335 states and 3692 transitions. [2024-11-16 08:09:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 330 [2024-11-16 08:09:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:37,417 INFO L225 Difference]: With dead ends: 3335 [2024-11-16 08:09:37,417 INFO L226 Difference]: Without dead ends: 1027 [2024-11-16 08:09:37,419 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 08:09:37,421 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 30 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:37,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 353 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-16 08:09:37,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-11-16 08:09:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1026 states have (on average 1.0818713450292399) internal successors, (1110), 1026 states have internal predecessors, (1110), 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 08:09:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1110 transitions. [2024-11-16 08:09:37,478 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1110 transitions. Word has length 330 [2024-11-16 08:09:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:37,479 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1110 transitions. [2024-11-16 08:09:37,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 08:09:37,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1110 transitions. [2024-11-16 08:09:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-16 08:09:37,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:37,481 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:09:37,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 08:09:37,481 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:37,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:37,482 INFO L85 PathProgramCache]: Analyzing trace with hash -975696530, now seen corresponding path program 1 times [2024-11-16 08:09:37,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:37,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215215764] [2024-11-16 08:09:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-16 08:09:37,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215215764] [2024-11-16 08:09:37,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215215764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:37,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:37,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:09:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972233827] [2024-11-16 08:09:37,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:37,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:09:37,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:37,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:09:37,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:09:37,545 INFO L87 Difference]: Start difference. First operand 1027 states and 1110 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 08:09:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:37,602 INFO L93 Difference]: Finished difference Result 1366 states and 1478 transitions. [2024-11-16 08:09:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:09:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 350 [2024-11-16 08:09:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:37,607 INFO L225 Difference]: With dead ends: 1366 [2024-11-16 08:09:37,607 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 08:09:37,608 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 08:09:37,609 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 3 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:37,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 325 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:09:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 08:09:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 08:09:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 08:09:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 08:09:37,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 350 [2024-11-16 08:09:37,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:37,614 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 08:09:37,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 08:09:37,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 08:09:37,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 08:09:37,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 08:09:37,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 08:09:37,622 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-16 08:09:37,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.