./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 889216697607a3ef71c51d8e84a75d701eba6a2c1ee6a0bec339c47f3476a23a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:05:51,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:05:51,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:05:51,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:05:51,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:05:51,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:05:51,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:05:51,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:05:51,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:05:51,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:05:51,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:05:51,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:05:51,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:05:51,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:05:51,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:05:51,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:05:51,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:05:51,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:05:51,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:05:51,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:05:51,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:05:51,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:05:51,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:05:51,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:05:51,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:05:51,980 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:05:51,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:05:51,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:05:51,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:05:51,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:05:51,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:05:51,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:05:51,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:05:51,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:05:51,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:05:51,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:05:51,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:05:51,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:05:51,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:05:51,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 889216697607a3ef71c51d8e84a75d701eba6a2c1ee6a0bec339c47f3476a23a [2024-11-16 11:05:52,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:05:52,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:05:52,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:05:52,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:05:52,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:05:52,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c [2024-11-16 11:05:53,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:05:54,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:05:54,052 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c [2024-11-16 11:05:54,074 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84899381a/7e915c6e9c7e4f088b4123d8061adb67/FLAG70fb855d8 [2024-11-16 11:05:54,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84899381a/7e915c6e9c7e4f088b4123d8061adb67 [2024-11-16 11:05:54,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:05:54,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:05:54,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:05:54,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:05:54,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:05:54,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:54" (1/1) ... [2024-11-16 11:05:54,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0e7589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:54, skipping insertion in model container [2024-11-16 11:05:54,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:54" (1/1) ... [2024-11-16 11:05:54,366 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:05:54,614 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/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c[1249,1262] [2024-11-16 11:05:55,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:05:55,032 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:05:55,043 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/hardware-verification-bv/btor2c-lazyMod.h_TreeArb.c[1249,1262] [2024-11-16 11:05:55,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:05:55,217 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:05:55,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55 WrapperNode [2024-11-16 11:05:55,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:05:55,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:05:55,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:05:55,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:05:55,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,694 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3993 [2024-11-16 11:05:55,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:05:55,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:05:55,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:05:55,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:05:55,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,895 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 11:05:55,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:55,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:05:56,211 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:05:56,212 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:05:56,212 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:05:56,213 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (1/1) ... [2024-11-16 11:05:56,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:05:56,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:05:56,246 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 11:05:56,249 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 11:05:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:05:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:05:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:05:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:05:56,740 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:05:56,742 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:05:59,855 INFO L? ?]: Removed 2723 outVars from TransFormulas that were not future-live. [2024-11-16 11:05:59,855 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:05:59,993 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:05:59,993 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:05:59,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:05:59 BoogieIcfgContainer [2024-11-16 11:05:59,994 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:05:59,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:05:59,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:06:00,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:06:00,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:05:54" (1/3) ... [2024-11-16 11:06:00,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508ca40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:00, skipping insertion in model container [2024-11-16 11:06:00,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:55" (2/3) ... [2024-11-16 11:06:00,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508ca40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:00, skipping insertion in model container [2024-11-16 11:06:00,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:05:59" (3/3) ... [2024-11-16 11:06:00,003 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_TreeArb.c [2024-11-16 11:06:00,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:06:00,023 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:06:00,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:06:00,123 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;@17e393bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:06:00,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:06:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 729 states, 727 states have (on average 1.4965612104539203) internal successors, (1088), 728 states have internal predecessors, (1088), 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 11:06:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 11:06:00,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:00,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:00,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:00,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1647008584, now seen corresponding path program 1 times [2024-11-16 11:06:00,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:00,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340775651] [2024-11-16 11:06:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:00,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:01,257 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 11:06:01,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:01,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340775651] [2024-11-16 11:06:01,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340775651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:01,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:01,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:06:01,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532980399] [2024-11-16 11:06:01,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:01,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:06:01,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:06:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:06:01,292 INFO L87 Difference]: Start difference. First operand has 729 states, 727 states have (on average 1.4965612104539203) internal successors, (1088), 728 states have internal predecessors, (1088), 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 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 11:06:01,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:01,747 INFO L93 Difference]: Finished difference Result 1393 states and 2083 transitions. [2024-11-16 11:06:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:06:01,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2024-11-16 11:06:01,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:01,770 INFO L225 Difference]: With dead ends: 1393 [2024-11-16 11:06:01,770 INFO L226 Difference]: Without dead ends: 726 [2024-11-16 11:06:01,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:06:01,781 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 0 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:01,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2698 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:06:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-16 11:06:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2024-11-16 11:06:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 1.4951724137931035) internal successors, (1084), 725 states have internal predecessors, (1084), 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 11:06:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1084 transitions. [2024-11-16 11:06:01,864 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1084 transitions. Word has length 86 [2024-11-16 11:06:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:01,865 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1084 transitions. [2024-11-16 11:06:01,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 11:06:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1084 transitions. [2024-11-16 11:06:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 11:06:01,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:01,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:01,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:06:01,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:01,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash 627395798, now seen corresponding path program 1 times [2024-11-16 11:06:01,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:01,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128108590] [2024-11-16 11:06:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:01,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:02,247 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 11:06:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128108590] [2024-11-16 11:06:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128108590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:02,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:06:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613513304] [2024-11-16 11:06:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:02,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:06:02,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:02,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:06:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:06:02,251 INFO L87 Difference]: Start difference. First operand 726 states and 1084 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 11:06:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:02,651 INFO L93 Difference]: Finished difference Result 1392 states and 2079 transitions. [2024-11-16 11:06:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:06:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2024-11-16 11:06:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:02,662 INFO L225 Difference]: With dead ends: 1392 [2024-11-16 11:06:02,663 INFO L226 Difference]: Without dead ends: 728 [2024-11-16 11:06:02,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:06:02,665 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 0 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:02,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2695 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:06:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-16 11:06:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2024-11-16 11:06:02,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 1.4938101788170564) internal successors, (1086), 727 states have internal predecessors, (1086), 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 11:06:02,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1086 transitions. [2024-11-16 11:06:02,704 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1086 transitions. Word has length 87 [2024-11-16 11:06:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:02,704 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 1086 transitions. [2024-11-16 11:06:02,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 11:06:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1086 transitions. [2024-11-16 11:06:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 11:06:02,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:02,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:02,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:06:02,711 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:02,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2016645085, now seen corresponding path program 1 times [2024-11-16 11:06:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:02,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941023626] [2024-11-16 11:06:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:02,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:03,359 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 11:06:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:03,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941023626] [2024-11-16 11:06:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941023626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:06:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423071216] [2024-11-16 11:06:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:03,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:06:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:06:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:06:03,365 INFO L87 Difference]: Start difference. First operand 728 states and 1086 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 11:06:03,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:03,952 INFO L93 Difference]: Finished difference Result 1399 states and 2088 transitions. [2024-11-16 11:06:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:06:03,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2024-11-16 11:06:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:03,957 INFO L225 Difference]: With dead ends: 1399 [2024-11-16 11:06:03,957 INFO L226 Difference]: Without dead ends: 733 [2024-11-16 11:06:03,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:06:03,959 INFO L432 NwaCegarLoop]: 897 mSDtfsCounter, 1 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:03,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4473 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:06:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-16 11:06:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2024-11-16 11:06:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.4918032786885247) internal successors, (1092), 732 states have internal predecessors, (1092), 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 11:06:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1092 transitions. [2024-11-16 11:06:03,976 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1092 transitions. Word has length 88 [2024-11-16 11:06:03,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:03,976 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1092 transitions. [2024-11-16 11:06:03,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 11:06:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1092 transitions. [2024-11-16 11:06:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 11:06:03,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:03,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:03,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:06:03,979 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:03,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:03,979 INFO L85 PathProgramCache]: Analyzing trace with hash -392413204, now seen corresponding path program 1 times [2024-11-16 11:06:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850792334] [2024-11-16 11:06:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:04,759 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 11:06:04,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:04,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850792334] [2024-11-16 11:06:04,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850792334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:04,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:04,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:04,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028432586] [2024-11-16 11:06:04,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:04,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:04,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:04,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:04,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:04,762 INFO L87 Difference]: Start difference. First operand 733 states and 1092 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 11:06:05,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:05,825 INFO L93 Difference]: Finished difference Result 1956 states and 2914 transitions. [2024-11-16 11:06:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:05,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 89 [2024-11-16 11:06:05,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:05,832 INFO L225 Difference]: With dead ends: 1956 [2024-11-16 11:06:05,832 INFO L226 Difference]: Without dead ends: 1285 [2024-11-16 11:06:05,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:05,837 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2631 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:05,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2631 Valid, 4230 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:06:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-16 11:06:05,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 818. [2024-11-16 11:06:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 817 states have (on average 1.4908200734394126) internal successors, (1218), 817 states have internal predecessors, (1218), 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 11:06:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1218 transitions. [2024-11-16 11:06:05,858 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1218 transitions. Word has length 89 [2024-11-16 11:06:05,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:05,860 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1218 transitions. [2024-11-16 11:06:05,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 11:06:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1218 transitions. [2024-11-16 11:06:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 11:06:05,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:05,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:05,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:06:05,863 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:05,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash 796151857, now seen corresponding path program 1 times [2024-11-16 11:06:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093895845] [2024-11-16 11:06:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:06,446 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 11:06:06,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:06,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093895845] [2024-11-16 11:06:06,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093895845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:06,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:06,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:06,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985031271] [2024-11-16 11:06:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:06,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:06,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:06,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:06,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:06,453 INFO L87 Difference]: Start difference. First operand 818 states and 1218 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 11:06:07,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:07,163 INFO L93 Difference]: Finished difference Result 1578 states and 2349 transitions. [2024-11-16 11:06:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:07,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 89 [2024-11-16 11:06:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:07,168 INFO L225 Difference]: With dead ends: 1578 [2024-11-16 11:06:07,169 INFO L226 Difference]: Without dead ends: 881 [2024-11-16 11:06:07,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:07,170 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 29 mSDsluCounter, 4467 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:07,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5363 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:06:07,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-16 11:06:07,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-16 11:06:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 880 states have (on average 1.4863636363636363) internal successors, (1308), 880 states have internal predecessors, (1308), 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 11:06:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1308 transitions. [2024-11-16 11:06:07,197 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1308 transitions. Word has length 89 [2024-11-16 11:06:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:07,197 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1308 transitions. [2024-11-16 11:06:07,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 11:06:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1308 transitions. [2024-11-16 11:06:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 11:06:07,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:07,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:07,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:06:07,200 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:07,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:07,201 INFO L85 PathProgramCache]: Analyzing trace with hash 909640837, now seen corresponding path program 1 times [2024-11-16 11:06:07,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:07,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789639182] [2024-11-16 11:06:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:07,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:07,471 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 11:06:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789639182] [2024-11-16 11:06:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789639182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:07,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:07,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433740510] [2024-11-16 11:06:07,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:07,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:07,473 INFO L87 Difference]: Start difference. First operand 881 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 11:06:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:07,925 INFO L93 Difference]: Finished difference Result 1679 states and 2494 transitions. [2024-11-16 11:06:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:07,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2024-11-16 11:06:07,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:07,930 INFO L225 Difference]: With dead ends: 1679 [2024-11-16 11:06:07,931 INFO L226 Difference]: Without dead ends: 945 [2024-11-16 11:06:07,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:07,933 INFO L432 NwaCegarLoop]: 900 mSDtfsCounter, 28 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:07,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3591 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:06:07,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-16 11:06:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2024-11-16 11:06:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 944 states have (on average 1.4830508474576272) internal successors, (1400), 944 states have internal predecessors, (1400), 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 11:06:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1400 transitions. [2024-11-16 11:06:07,955 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1400 transitions. Word has length 90 [2024-11-16 11:06:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:07,955 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1400 transitions. [2024-11-16 11:06:07,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 11:06:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1400 transitions. [2024-11-16 11:06:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 11:06:07,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:07,959 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:07,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:06:07,959 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:07,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:07,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1404847138, now seen corresponding path program 1 times [2024-11-16 11:06:07,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:07,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083795537] [2024-11-16 11:06:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:07,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:08,804 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 11:06:08,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:08,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083795537] [2024-11-16 11:06:08,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083795537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:08,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:08,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:06:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134868840] [2024-11-16 11:06:08,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:08,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:06:08,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:06:08,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:06:08,807 INFO L87 Difference]: Start difference. First operand 945 states and 1400 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 11:06:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:10,167 INFO L93 Difference]: Finished difference Result 2226 states and 3296 transitions. [2024-11-16 11:06:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:06:10,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 90 [2024-11-16 11:06:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:10,173 INFO L225 Difference]: With dead ends: 2226 [2024-11-16 11:06:10,173 INFO L226 Difference]: Without dead ends: 1460 [2024-11-16 11:06:10,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-16 11:06:10,179 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2710 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:10,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 5917 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 11:06:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-11-16 11:06:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 965. [2024-11-16 11:06:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4813278008298756) internal successors, (1428), 964 states have internal predecessors, (1428), 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 11:06:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1428 transitions. [2024-11-16 11:06:10,203 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1428 transitions. Word has length 90 [2024-11-16 11:06:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:10,204 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1428 transitions. [2024-11-16 11:06:10,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 11:06:10,204 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1428 transitions. [2024-11-16 11:06:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 11:06:10,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:10,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:10,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:06:10,205 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:10,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash -660856278, now seen corresponding path program 1 times [2024-11-16 11:06:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088826084] [2024-11-16 11:06:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:10,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:10,835 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 11:06:10,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088826084] [2024-11-16 11:06:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088826084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:10,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:10,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 11:06:10,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389869134] [2024-11-16 11:06:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:10,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 11:06:10,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 11:06:10,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:06:10,838 INFO L87 Difference]: Start difference. First operand 965 states and 1428 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 11:06:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:11,886 INFO L93 Difference]: Finished difference Result 2267 states and 3354 transitions. [2024-11-16 11:06:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:06:11,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 90 [2024-11-16 11:06:11,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:11,892 INFO L225 Difference]: With dead ends: 2267 [2024-11-16 11:06:11,893 INFO L226 Difference]: Without dead ends: 1414 [2024-11-16 11:06:11,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-16 11:06:11,895 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2537 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 5075 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:11,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 5075 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:06:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2024-11-16 11:06:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 991. [2024-11-16 11:06:11,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.4787878787878788) internal successors, (1464), 990 states have internal predecessors, (1464), 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 11:06:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1464 transitions. [2024-11-16 11:06:11,918 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1464 transitions. Word has length 90 [2024-11-16 11:06:11,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:11,919 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1464 transitions. [2024-11-16 11:06:11,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 11:06:11,919 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1464 transitions. [2024-11-16 11:06:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 11:06:11,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:11,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:11,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:06:11,920 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:11,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1340046115, now seen corresponding path program 1 times [2024-11-16 11:06:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:11,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27666392] [2024-11-16 11:06:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:12,501 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 11:06:12,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:12,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27666392] [2024-11-16 11:06:12,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27666392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:12,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:12,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:12,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791985649] [2024-11-16 11:06:12,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:12,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:12,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:12,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:12,504 INFO L87 Difference]: Start difference. First operand 991 states and 1464 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:06:13,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:13,429 INFO L93 Difference]: Finished difference Result 2222 states and 3286 transitions. [2024-11-16 11:06:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 91 [2024-11-16 11:06:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:13,437 INFO L225 Difference]: With dead ends: 2222 [2024-11-16 11:06:13,437 INFO L226 Difference]: Without dead ends: 1428 [2024-11-16 11:06:13,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:13,439 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 2507 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:13,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:06:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-16 11:06:13,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 993. [2024-11-16 11:06:13,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.4758064516129032) internal successors, (1464), 992 states have internal predecessors, (1464), 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 11:06:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1464 transitions. [2024-11-16 11:06:13,462 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1464 transitions. Word has length 91 [2024-11-16 11:06:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:13,463 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1464 transitions. [2024-11-16 11:06:13,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:06:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1464 transitions. [2024-11-16 11:06:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 11:06:13,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:13,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:13,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 11:06:13,465 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:13,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1976537021, now seen corresponding path program 1 times [2024-11-16 11:06:13,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:13,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427445393] [2024-11-16 11:06:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:13,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:14,127 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 11:06:14,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:14,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427445393] [2024-11-16 11:06:14,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427445393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:14,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:14,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:14,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025104708] [2024-11-16 11:06:14,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:14,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:14,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:14,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:14,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:14,130 INFO L87 Difference]: Start difference. First operand 993 states and 1464 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:06:15,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:15,006 INFO L93 Difference]: Finished difference Result 2319 states and 3420 transitions. [2024-11-16 11:06:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 91 [2024-11-16 11:06:15,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:15,011 INFO L225 Difference]: With dead ends: 2319 [2024-11-16 11:06:15,011 INFO L226 Difference]: Without dead ends: 1430 [2024-11-16 11:06:15,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:15,013 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 2519 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:15,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:06:15,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-16 11:06:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 995. [2024-11-16 11:06:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 994 states have (on average 1.4728370221327969) internal successors, (1464), 994 states have internal predecessors, (1464), 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 11:06:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1464 transitions. [2024-11-16 11:06:15,037 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1464 transitions. Word has length 91 [2024-11-16 11:06:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:15,038 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1464 transitions. [2024-11-16 11:06:15,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:06:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1464 transitions. [2024-11-16 11:06:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 11:06:15,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:15,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:15,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 11:06:15,040 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:15,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1709901193, now seen corresponding path program 1 times [2024-11-16 11:06:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008477220] [2024-11-16 11:06:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:15,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:15,903 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 11:06:15,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:15,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008477220] [2024-11-16 11:06:15,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008477220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:15,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:15,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:06:15,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565708522] [2024-11-16 11:06:15,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:15,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:06:15,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:15,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:06:15,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:06:15,905 INFO L87 Difference]: Start difference. First operand 995 states and 1464 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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 11:06:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:17,066 INFO L93 Difference]: Finished difference Result 2233 states and 3285 transitions. [2024-11-16 11:06:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:06:17,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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 91 [2024-11-16 11:06:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:17,071 INFO L225 Difference]: With dead ends: 2233 [2024-11-16 11:06:17,072 INFO L226 Difference]: Without dead ends: 1311 [2024-11-16 11:06:17,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-16 11:06:17,073 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2179 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:17,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 5917 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 11:06:17,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2024-11-16 11:06:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1008. [2024-11-16 11:06:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 1007 states have (on average 1.471698113207547) internal successors, (1482), 1007 states have internal predecessors, (1482), 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 11:06:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1482 transitions. [2024-11-16 11:06:17,092 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1482 transitions. Word has length 91 [2024-11-16 11:06:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:17,092 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1482 transitions. [2024-11-16 11:06:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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 11:06:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1482 transitions. [2024-11-16 11:06:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 11:06:17,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:17,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:17,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 11:06:17,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:17,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1967451225, now seen corresponding path program 1 times [2024-11-16 11:06:17,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:17,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425100845] [2024-11-16 11:06:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:17,650 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 11:06:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:17,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425100845] [2024-11-16 11:06:17,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425100845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:17,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:17,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:17,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157317949] [2024-11-16 11:06:17,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:17,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:17,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:17,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:17,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:17,652 INFO L87 Difference]: Start difference. First operand 1008 states and 1482 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:18,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:18,517 INFO L93 Difference]: Finished difference Result 2129 states and 3136 transitions. [2024-11-16 11:06:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:18,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2024-11-16 11:06:18,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:18,521 INFO L225 Difference]: With dead ends: 2129 [2024-11-16 11:06:18,521 INFO L226 Difference]: Without dead ends: 1325 [2024-11-16 11:06:18,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:18,523 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 2137 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:18,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:06:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-16 11:06:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1010. [2024-11-16 11:06:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1009 states have (on average 1.468780971258672) internal successors, (1482), 1009 states have internal predecessors, (1482), 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 11:06:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1482 transitions. [2024-11-16 11:06:18,541 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1482 transitions. Word has length 92 [2024-11-16 11:06:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:18,542 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1482 transitions. [2024-11-16 11:06:18,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1482 transitions. [2024-11-16 11:06:18,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 11:06:18,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:18,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:18,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:06:18,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:18,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:18,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1033740975, now seen corresponding path program 1 times [2024-11-16 11:06:18,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:18,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111885142] [2024-11-16 11:06:18,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:18,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:19,137 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 11:06:19,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:19,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111885142] [2024-11-16 11:06:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111885142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:19,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299767098] [2024-11-16 11:06:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:19,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:19,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:19,141 INFO L87 Difference]: Start difference. First operand 1010 states and 1482 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:19,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:19,938 INFO L93 Difference]: Finished difference Result 2164 states and 3174 transitions. [2024-11-16 11:06:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:19,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2024-11-16 11:06:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:19,943 INFO L225 Difference]: With dead ends: 2164 [2024-11-16 11:06:19,944 INFO L226 Difference]: Without dead ends: 1263 [2024-11-16 11:06:19,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:19,945 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 1957 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:19,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:06:19,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-16 11:06:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1012. [2024-11-16 11:06:19,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.4658753709198813) internal successors, (1482), 1011 states have internal predecessors, (1482), 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 11:06:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1482 transitions. [2024-11-16 11:06:19,964 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1482 transitions. Word has length 92 [2024-11-16 11:06:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:19,964 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1482 transitions. [2024-11-16 11:06:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1482 transitions. [2024-11-16 11:06:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 11:06:19,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:19,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:19,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:06:19,966 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:19,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash 648068889, now seen corresponding path program 1 times [2024-11-16 11:06:19,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:19,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407113648] [2024-11-16 11:06:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:20,572 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 11:06:20,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:20,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407113648] [2024-11-16 11:06:20,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407113648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:20,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:20,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:20,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477928946] [2024-11-16 11:06:20,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:20,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:20,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:20,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:20,575 INFO L87 Difference]: Start difference. First operand 1012 states and 1482 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:21,380 INFO L93 Difference]: Finished difference Result 2271 states and 3327 transitions. [2024-11-16 11:06:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2024-11-16 11:06:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:21,385 INFO L225 Difference]: With dead ends: 2271 [2024-11-16 11:06:21,385 INFO L226 Difference]: Without dead ends: 1328 [2024-11-16 11:06:21,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:21,388 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 2157 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:21,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:06:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-11-16 11:06:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1013. [2024-11-16 11:06:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.4644268774703557) internal successors, (1482), 1012 states have internal predecessors, (1482), 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 11:06:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1482 transitions. [2024-11-16 11:06:21,476 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1482 transitions. Word has length 92 [2024-11-16 11:06:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:21,476 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1482 transitions. [2024-11-16 11:06:21,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 11:06:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1482 transitions. [2024-11-16 11:06:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 11:06:21,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:21,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:21,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 11:06:21,478 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:21,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash 567554488, now seen corresponding path program 1 times [2024-11-16 11:06:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:21,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092445575] [2024-11-16 11:06:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:21,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:21,880 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 11:06:21,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:21,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092445575] [2024-11-16 11:06:21,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092445575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:21,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:21,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:21,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136733452] [2024-11-16 11:06:21,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:21,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:21,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:21,882 INFO L87 Difference]: Start difference. First operand 1013 states and 1482 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 11:06:22,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:22,410 INFO L93 Difference]: Finished difference Result 2125 states and 3114 transitions. [2024-11-16 11:06:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:22,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 93 [2024-11-16 11:06:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:22,415 INFO L225 Difference]: With dead ends: 2125 [2024-11-16 11:06:22,415 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 11:06:22,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:22,417 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 1960 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:22,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 2549 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:06:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 11:06:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 961. [2024-11-16 11:06:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 1.4645833333333333) internal successors, (1406), 960 states have internal predecessors, (1406), 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 11:06:22,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1406 transitions. [2024-11-16 11:06:22,434 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1406 transitions. Word has length 93 [2024-11-16 11:06:22,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:22,435 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1406 transitions. [2024-11-16 11:06:22,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 11:06:22,435 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1406 transitions. [2024-11-16 11:06:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 11:06:22,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:22,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:22,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:06:22,436 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:22,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 284260312, now seen corresponding path program 1 times [2024-11-16 11:06:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:22,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100649853] [2024-11-16 11:06:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:22,906 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 11:06:22,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:22,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100649853] [2024-11-16 11:06:22,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100649853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:22,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:22,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:22,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995074937] [2024-11-16 11:06:22,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:22,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:22,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:22,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:22,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:22,911 INFO L87 Difference]: Start difference. First operand 961 states and 1406 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 11:06:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:23,511 INFO L93 Difference]: Finished difference Result 1978 states and 2908 transitions. [2024-11-16 11:06:23,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:23,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 93 [2024-11-16 11:06:23,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:23,515 INFO L225 Difference]: With dead ends: 1978 [2024-11-16 11:06:23,515 INFO L226 Difference]: Without dead ends: 1174 [2024-11-16 11:06:23,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:23,517 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 1920 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:23,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 2549 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:06:23,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-16 11:06:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 925. [2024-11-16 11:06:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.4653679653679654) internal successors, (1354), 924 states have internal predecessors, (1354), 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 11:06:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1354 transitions. [2024-11-16 11:06:23,580 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1354 transitions. Word has length 93 [2024-11-16 11:06:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:23,580 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1354 transitions. [2024-11-16 11:06:23,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 11:06:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1354 transitions. [2024-11-16 11:06:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 11:06:23,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:23,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:23,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:06:23,582 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:23,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1615706820, now seen corresponding path program 1 times [2024-11-16 11:06:23,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495510980] [2024-11-16 11:06:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:24,207 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 11:06:24,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:24,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495510980] [2024-11-16 11:06:24,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495510980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:24,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:24,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617997494] [2024-11-16 11:06:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:24,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:24,210 INFO L87 Difference]: Start difference. First operand 925 states and 1354 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 11:06:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:24,943 INFO L93 Difference]: Finished difference Result 2217 states and 3253 transitions. [2024-11-16 11:06:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 93 [2024-11-16 11:06:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:24,948 INFO L225 Difference]: With dead ends: 2217 [2024-11-16 11:06:24,948 INFO L226 Difference]: Without dead ends: 1388 [2024-11-16 11:06:24,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:24,950 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2575 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:24,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2575 Valid, 4230 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:06:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-16 11:06:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 923. [2024-11-16 11:06:24,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 922 states have (on average 1.4642082429501084) internal successors, (1350), 922 states have internal predecessors, (1350), 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 11:06:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1350 transitions. [2024-11-16 11:06:24,964 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1350 transitions. Word has length 93 [2024-11-16 11:06:24,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:24,965 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1350 transitions. [2024-11-16 11:06:24,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 11:06:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1350 transitions. [2024-11-16 11:06:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 11:06:24,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:24,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:24,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 11:06:24,967 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:24,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:24,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1412172401, now seen corresponding path program 1 times [2024-11-16 11:06:24,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:24,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114252599] [2024-11-16 11:06:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:24,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:25,462 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 11:06:25,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:25,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114252599] [2024-11-16 11:06:25,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114252599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:25,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:25,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:25,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270440447] [2024-11-16 11:06:25,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:25,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:25,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:25,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:25,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:25,464 INFO L87 Difference]: Start difference. First operand 923 states and 1350 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 11:06:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:26,130 INFO L93 Difference]: Finished difference Result 2019 states and 2953 transitions. [2024-11-16 11:06:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:26,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 94 [2024-11-16 11:06:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:26,135 INFO L225 Difference]: With dead ends: 2019 [2024-11-16 11:06:26,135 INFO L226 Difference]: Without dead ends: 1161 [2024-11-16 11:06:26,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:06:26,137 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 1911 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:26,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 4235 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:06:26,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-16 11:06:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 924. [2024-11-16 11:06:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 923 states have (on average 1.4626218851570965) internal successors, (1350), 923 states have internal predecessors, (1350), 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 11:06:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1350 transitions. [2024-11-16 11:06:26,190 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1350 transitions. Word has length 94 [2024-11-16 11:06:26,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:26,191 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1350 transitions. [2024-11-16 11:06:26,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 11:06:26,191 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1350 transitions. [2024-11-16 11:06:26,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 11:06:26,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:26,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:26,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 11:06:26,192 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:26,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:26,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2107777077, now seen corresponding path program 1 times [2024-11-16 11:06:26,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:26,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413431745] [2024-11-16 11:06:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:26,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:26,553 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 11:06:26,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:26,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413431745] [2024-11-16 11:06:26,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413431745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:26,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:26,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256371188] [2024-11-16 11:06:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:26,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:26,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:26,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:26,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:26,555 INFO L87 Difference]: Start difference. First operand 924 states and 1350 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 11:06:27,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:27,038 INFO L93 Difference]: Finished difference Result 1951 states and 2863 transitions. [2024-11-16 11:06:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:27,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 95 [2024-11-16 11:06:27,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:27,041 INFO L225 Difference]: With dead ends: 1951 [2024-11-16 11:06:27,041 INFO L226 Difference]: Without dead ends: 1093 [2024-11-16 11:06:27,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:27,043 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 1892 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:27,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 2549 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:06:27,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-16 11:06:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 860. [2024-11-16 11:06:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 1.4714784633294529) internal successors, (1264), 859 states have internal predecessors, (1264), 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 11:06:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1264 transitions. [2024-11-16 11:06:27,055 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1264 transitions. Word has length 95 [2024-11-16 11:06:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:27,055 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1264 transitions. [2024-11-16 11:06:27,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 11:06:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1264 transitions. [2024-11-16 11:06:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-16 11:06:27,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:27,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:27,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:06:27,062 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:27,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -937801422, now seen corresponding path program 1 times [2024-11-16 11:06:27,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:27,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153575132] [2024-11-16 11:06:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:34,128 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:06:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153575132] [2024-11-16 11:06:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153575132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:34,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:34,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649144303] [2024-11-16 11:06:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:34,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:34,130 INFO L87 Difference]: Start difference. First operand 860 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 11:06:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:35,033 INFO L93 Difference]: Finished difference Result 2229 states and 3298 transitions. [2024-11-16 11:06:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:06:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 420 [2024-11-16 11:06:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:35,036 INFO L225 Difference]: With dead ends: 2229 [2024-11-16 11:06:35,036 INFO L226 Difference]: Without dead ends: 864 [2024-11-16 11:06:35,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:35,038 INFO L432 NwaCegarLoop]: 1412 mSDtfsCounter, 700 mSDsluCounter, 3500 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:35,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 4912 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:06:35,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-16 11:06:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 862. [2024-11-16 11:06:35,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 1.470383275261324) internal successors, (1266), 861 states have internal predecessors, (1266), 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 11:06:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1266 transitions. [2024-11-16 11:06:35,049 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1266 transitions. Word has length 420 [2024-11-16 11:06:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:35,049 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1266 transitions. [2024-11-16 11:06:35,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 11:06:35,050 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1266 transitions. [2024-11-16 11:06:35,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-16 11:06:35,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:35,055 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:35,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 11:06:35,056 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:35,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash 222623905, now seen corresponding path program 1 times [2024-11-16 11:06:35,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:35,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525453364] [2024-11-16 11:06:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:35,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:06:42,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:42,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525453364] [2024-11-16 11:06:42,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525453364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:42,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:42,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:42,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684979011] [2024-11-16 11:06:42,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:42,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:42,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:42,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:42,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:42,419 INFO L87 Difference]: Start difference. First operand 862 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:06:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:42,951 INFO L93 Difference]: Finished difference Result 1698 states and 2507 transitions. [2024-11-16 11:06:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2024-11-16 11:06:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:42,954 INFO L225 Difference]: With dead ends: 1698 [2024-11-16 11:06:42,954 INFO L226 Difference]: Without dead ends: 866 [2024-11-16 11:06:42,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:42,956 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 76 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:42,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3344 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:06:42,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-16 11:06:42,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 864. [2024-11-16 11:06:42,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.4692931633835458) internal successors, (1268), 863 states have internal predecessors, (1268), 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 11:06:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1268 transitions. [2024-11-16 11:06:42,967 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1268 transitions. Word has length 421 [2024-11-16 11:06:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:42,967 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1268 transitions. [2024-11-16 11:06:42,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:06:42,968 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1268 transitions. [2024-11-16 11:06:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-16 11:06:42,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:42,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:42,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 11:06:42,974 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:42,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:42,975 INFO L85 PathProgramCache]: Analyzing trace with hash -447523335, now seen corresponding path program 1 times [2024-11-16 11:06:42,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:42,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024330353] [2024-11-16 11:06:42,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:42,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:06:48,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:48,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024330353] [2024-11-16 11:06:48,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024330353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:48,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:48,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:06:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440519345] [2024-11-16 11:06:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:48,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:06:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:06:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:48,116 INFO L87 Difference]: Start difference. First operand 864 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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 11:06:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:48,683 INFO L93 Difference]: Finished difference Result 1660 states and 2448 transitions. [2024-11-16 11:06:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:06:48,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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 422 [2024-11-16 11:06:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:48,687 INFO L225 Difference]: With dead ends: 1660 [2024-11-16 11:06:48,687 INFO L226 Difference]: Without dead ends: 868 [2024-11-16 11:06:48,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:06:48,690 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 42 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:48,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3359 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:06:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-16 11:06:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 866. [2024-11-16 11:06:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 1.4682080924855492) internal successors, (1270), 865 states have internal predecessors, (1270), 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 11:06:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1270 transitions. [2024-11-16 11:06:48,704 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1270 transitions. Word has length 422 [2024-11-16 11:06:48,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:48,704 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1270 transitions. [2024-11-16 11:06:48,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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 11:06:48,705 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1270 transitions. [2024-11-16 11:06:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-16 11:06:48,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:48,707 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:48,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 11:06:48,708 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:48,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:48,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1834571439, now seen corresponding path program 1 times [2024-11-16 11:06:48,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:48,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037684432] [2024-11-16 11:06:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:48,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:06:53,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:53,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037684432] [2024-11-16 11:06:53,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037684432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:53,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:53,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:06:53,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572020108] [2024-11-16 11:06:53,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:53,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:06:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:06:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:06:53,845 INFO L87 Difference]: Start difference. First operand 866 states and 1270 transitions. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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 11:06:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:54,494 INFO L93 Difference]: Finished difference Result 1664 states and 2452 transitions. [2024-11-16 11:06:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:06:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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 423 [2024-11-16 11:06:54,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:54,497 INFO L225 Difference]: With dead ends: 1664 [2024-11-16 11:06:54,497 INFO L226 Difference]: Without dead ends: 870 [2024-11-16 11:06:54,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:06:54,503 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 44 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:54,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4040 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:06:54,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-16 11:06:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 868. [2024-11-16 11:06:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.467128027681661) internal successors, (1272), 867 states have internal predecessors, (1272), 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 11:06:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1272 transitions. [2024-11-16 11:06:54,514 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1272 transitions. Word has length 423 [2024-11-16 11:06:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:54,519 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1272 transitions. [2024-11-16 11:06:54,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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 11:06:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1272 transitions. [2024-11-16 11:06:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-16 11:06:54,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:54,523 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:54,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 11:06:54,524 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:54,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1964282689, now seen corresponding path program 1 times [2024-11-16 11:06:54,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:54,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519857267] [2024-11-16 11:06:54,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:54,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms