./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/locks/test_locks_15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/locks/test_locks_15-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:02:12,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:02:12,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:02:12,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:02:12,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:02:12,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:02:12,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:02:12,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:02:12,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:02:12,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:02:12,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:02:12,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:02:12,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:02:12,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:02:12,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:02:12,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:02:12,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:02:12,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:02:12,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:02:12,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:02:12,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:02:12,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:02:12,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:02:12,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:02:12,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:02:12,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:02:12,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:02:12,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:02:12,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:02:12,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:02:12,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:02:12,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:02:12,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:02:12,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:02:12,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:02:12,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:02:12,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 [2024-11-16 03:02:12,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:02:12,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:02:12,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:02:12,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:02:12,643 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:02:12,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-2.c [2024-11-16 03:02:13,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:02:14,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:02:14,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-2.c [2024-11-16 03:02:14,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbad0f0c7/da6834041cb04f9a9b2584f359deebf5/FLAG4325003d3 [2024-11-16 03:02:14,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbad0f0c7/da6834041cb04f9a9b2584f359deebf5 [2024-11-16 03:02:14,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:02:14,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:02:14,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:02:14,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:02:14,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:02:14,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb7f075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14, skipping insertion in model container [2024-11-16 03:02:14,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:02:14,269 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/locks/test_locks_15-2.c[5628,5641] [2024-11-16 03:02:14,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:02:14,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:02:14,307 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/locks/test_locks_15-2.c[5628,5641] [2024-11-16 03:02:14,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:02:14,327 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:02:14,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14 WrapperNode [2024-11-16 03:02:14,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:02:14,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:02:14,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:02:14,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:02:14,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,358 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 207 [2024-11-16 03:02:14,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:02:14,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:02:14,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:02:14,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:02:14,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,386 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:02:14,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:02:14,403 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:02:14,403 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:02:14,406 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:02:14,406 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (1/1) ... [2024-11-16 03:02:14,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:02:14,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:02:14,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:02:14,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:02:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:02:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:02:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:02:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:02:14,543 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:02:14,546 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:02:14,821 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-16 03:02:14,821 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:02:14,851 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:02:14,851 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:02:14,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:02:14 BoogieIcfgContainer [2024-11-16 03:02:14,851 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:02:14,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:02:14,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:02:14,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:02:14,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:02:14" (1/3) ... [2024-11-16 03:02:14,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9b3e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:02:14, skipping insertion in model container [2024-11-16 03:02:14,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:02:14" (2/3) ... [2024-11-16 03:02:14,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9b3e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:02:14, skipping insertion in model container [2024-11-16 03:02:14,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:02:14" (3/3) ... [2024-11-16 03:02:14,857 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-2.c [2024-11-16 03:02:14,870 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:02:14,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:02:14,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:02:14,923 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;@212dba41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:02:14,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:02:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 56 states have (on average 1.875) internal successors, (105), 57 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 03:02:14,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:14,932 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] [2024-11-16 03:02:14,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:14,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash -526893658, now seen corresponding path program 1 times [2024-11-16 03:02:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933314837] [2024-11-16 03:02:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933314837] [2024-11-16 03:02:15,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933314837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323044127] [2024-11-16 03:02:15,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,177 INFO L87 Difference]: Start difference. First operand has 58 states, 56 states have (on average 1.875) internal successors, (105), 57 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,226 INFO L93 Difference]: Finished difference Result 117 states and 210 transitions. [2024-11-16 03:02:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-16 03:02:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,238 INFO L225 Difference]: With dead ends: 117 [2024-11-16 03:02:15,239 INFO L226 Difference]: Without dead ends: 103 [2024-11-16 03:02:15,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,244 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 77 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 203 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-16 03:02:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 69. [2024-11-16 03:02:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.8823529411764706) internal successors, (128), 68 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 128 transitions. [2024-11-16 03:02:15,281 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 128 transitions. Word has length 24 [2024-11-16 03:02:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,281 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 128 transitions. [2024-11-16 03:02:15,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 128 transitions. [2024-11-16 03:02:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 03:02:15,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,285 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] [2024-11-16 03:02:15,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:02:15,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1371365529, now seen corresponding path program 1 times [2024-11-16 03:02:15,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246426482] [2024-11-16 03:02:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246426482] [2024-11-16 03:02:15,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246426482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166807693] [2024-11-16 03:02:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,365 INFO L87 Difference]: Start difference. First operand 69 states and 128 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,384 INFO L93 Difference]: Finished difference Result 170 states and 315 transitions. [2024-11-16 03:02:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-16 03:02:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,385 INFO L225 Difference]: With dead ends: 170 [2024-11-16 03:02:15,385 INFO L226 Difference]: Without dead ends: 103 [2024-11-16 03:02:15,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,390 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 75 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 218 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-16 03:02:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2024-11-16 03:02:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.8686868686868687) internal successors, (185), 99 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 185 transitions. [2024-11-16 03:02:15,402 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 185 transitions. Word has length 24 [2024-11-16 03:02:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,403 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 185 transitions. [2024-11-16 03:02:15,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 185 transitions. [2024-11-16 03:02:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 03:02:15,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,404 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] [2024-11-16 03:02:15,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:02:15,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,405 INFO L85 PathProgramCache]: Analyzing trace with hash 847062434, now seen corresponding path program 1 times [2024-11-16 03:02:15,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966170676] [2024-11-16 03:02:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966170676] [2024-11-16 03:02:15,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966170676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509169042] [2024-11-16 03:02:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,458 INFO L87 Difference]: Start difference. First operand 100 states and 185 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,474 INFO L93 Difference]: Finished difference Result 157 states and 283 transitions. [2024-11-16 03:02:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-16 03:02:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,475 INFO L225 Difference]: With dead ends: 157 [2024-11-16 03:02:15,475 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 03:02:15,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,477 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 77 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 246 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 03:02:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2024-11-16 03:02:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.825242718446602) internal successors, (188), 103 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 188 transitions. [2024-11-16 03:02:15,494 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 188 transitions. Word has length 25 [2024-11-16 03:02:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,495 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 188 transitions. [2024-11-16 03:02:15,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 188 transitions. [2024-11-16 03:02:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 03:02:15,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,496 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] [2024-11-16 03:02:15,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:02:15,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash 438238209, now seen corresponding path program 1 times [2024-11-16 03:02:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558277919] [2024-11-16 03:02:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558277919] [2024-11-16 03:02:15,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558277919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513424538] [2024-11-16 03:02:15,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,553 INFO L87 Difference]: Start difference. First operand 104 states and 188 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,581 INFO L93 Difference]: Finished difference Result 201 states and 365 transitions. [2024-11-16 03:02:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-16 03:02:15,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,583 INFO L225 Difference]: With dead ends: 201 [2024-11-16 03:02:15,583 INFO L226 Difference]: Without dead ends: 198 [2024-11-16 03:02:15,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,584 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 72 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 191 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-16 03:02:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 137. [2024-11-16 03:02:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.8308823529411764) internal successors, (249), 136 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 249 transitions. [2024-11-16 03:02:15,603 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 249 transitions. Word has length 25 [2024-11-16 03:02:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,603 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 249 transitions. [2024-11-16 03:02:15,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 249 transitions. [2024-11-16 03:02:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 03:02:15,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,604 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] [2024-11-16 03:02:15,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:02:15,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash -406233662, now seen corresponding path program 1 times [2024-11-16 03:02:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656130981] [2024-11-16 03:02:15,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656130981] [2024-11-16 03:02:15,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656130981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539153516] [2024-11-16 03:02:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,663 INFO L87 Difference]: Start difference. First operand 137 states and 249 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,680 INFO L93 Difference]: Finished difference Result 331 states and 605 transitions. [2024-11-16 03:02:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-16 03:02:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,682 INFO L225 Difference]: With dead ends: 331 [2024-11-16 03:02:15,682 INFO L226 Difference]: Without dead ends: 200 [2024-11-16 03:02:15,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,684 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 74 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 219 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-16 03:02:15,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2024-11-16 03:02:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.8214285714285714) internal successors, (357), 196 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 357 transitions. [2024-11-16 03:02:15,698 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 357 transitions. Word has length 25 [2024-11-16 03:02:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,698 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 357 transitions. [2024-11-16 03:02:15,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 357 transitions. [2024-11-16 03:02:15,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 03:02:15,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,700 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] [2024-11-16 03:02:15,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:02:15,700 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash 701372512, now seen corresponding path program 1 times [2024-11-16 03:02:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112890669] [2024-11-16 03:02:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112890669] [2024-11-16 03:02:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112890669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895945396] [2024-11-16 03:02:15,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,746 INFO L87 Difference]: Start difference. First operand 197 states and 357 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,777 INFO L93 Difference]: Finished difference Result 298 states and 536 transitions. [2024-11-16 03:02:15,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 03:02:15,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,779 INFO L225 Difference]: With dead ends: 298 [2024-11-16 03:02:15,779 INFO L226 Difference]: Without dead ends: 202 [2024-11-16 03:02:15,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,780 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 76 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 242 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-16 03:02:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2024-11-16 03:02:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.803030303030303) internal successors, (357), 198 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 357 transitions. [2024-11-16 03:02:15,790 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 357 transitions. Word has length 26 [2024-11-16 03:02:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,790 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 357 transitions. [2024-11-16 03:02:15,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 357 transitions. [2024-11-16 03:02:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 03:02:15,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,792 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] [2024-11-16 03:02:15,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:02:15,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash 292548287, now seen corresponding path program 1 times [2024-11-16 03:02:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417442245] [2024-11-16 03:02:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417442245] [2024-11-16 03:02:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417442245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070706338] [2024-11-16 03:02:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,819 INFO L87 Difference]: Start difference. First operand 199 states and 357 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,834 INFO L93 Difference]: Finished difference Result 381 states and 689 transitions. [2024-11-16 03:02:15,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 03:02:15,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,836 INFO L225 Difference]: With dead ends: 381 [2024-11-16 03:02:15,836 INFO L226 Difference]: Without dead ends: 378 [2024-11-16 03:02:15,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,837 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 69 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 189 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-16 03:02:15,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 267. [2024-11-16 03:02:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 1.7932330827067668) internal successors, (477), 266 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 477 transitions. [2024-11-16 03:02:15,844 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 477 transitions. Word has length 26 [2024-11-16 03:02:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,844 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 477 transitions. [2024-11-16 03:02:15,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 477 transitions. [2024-11-16 03:02:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 03:02:15,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,846 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] [2024-11-16 03:02:15,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:02:15,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash -551923584, now seen corresponding path program 1 times [2024-11-16 03:02:15,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060284944] [2024-11-16 03:02:15,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060284944] [2024-11-16 03:02:15,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060284944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130473824] [2024-11-16 03:02:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,870 INFO L87 Difference]: Start difference. First operand 267 states and 477 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,882 INFO L93 Difference]: Finished difference Result 645 states and 1157 transitions. [2024-11-16 03:02:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 03:02:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,884 INFO L225 Difference]: With dead ends: 645 [2024-11-16 03:02:15,884 INFO L226 Difference]: Without dead ends: 386 [2024-11-16 03:02:15,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,886 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 73 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 220 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-16 03:02:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 383. [2024-11-16 03:02:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.7827225130890052) internal successors, (681), 382 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 681 transitions. [2024-11-16 03:02:15,895 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 681 transitions. Word has length 26 [2024-11-16 03:02:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,895 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 681 transitions. [2024-11-16 03:02:15,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 681 transitions. [2024-11-16 03:02:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 03:02:15,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,896 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] [2024-11-16 03:02:15,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:02:15,897 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash 479945499, now seen corresponding path program 1 times [2024-11-16 03:02:15,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243517190] [2024-11-16 03:02:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:15,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:15,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243517190] [2024-11-16 03:02:15,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243517190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:15,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:15,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:15,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929768408] [2024-11-16 03:02:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:15,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,932 INFO L87 Difference]: Start difference. First operand 383 states and 681 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:15,946 INFO L93 Difference]: Finished difference Result 577 states and 1021 transitions. [2024-11-16 03:02:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-16 03:02:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:15,950 INFO L225 Difference]: With dead ends: 577 [2024-11-16 03:02:15,950 INFO L226 Difference]: Without dead ends: 390 [2024-11-16 03:02:15,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:15,951 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 75 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:15,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 238 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-16 03:02:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2024-11-16 03:02:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.7642487046632125) internal successors, (681), 386 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 681 transitions. [2024-11-16 03:02:15,964 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 681 transitions. Word has length 27 [2024-11-16 03:02:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:15,965 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 681 transitions. [2024-11-16 03:02:15,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 681 transitions. [2024-11-16 03:02:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 03:02:15,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:15,967 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] [2024-11-16 03:02:15,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:02:15,967 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:15,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash 71121274, now seen corresponding path program 1 times [2024-11-16 03:02:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:15,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563519087] [2024-11-16 03:02:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:15,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563519087] [2024-11-16 03:02:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563519087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134514617] [2024-11-16 03:02:16,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,009 INFO L87 Difference]: Start difference. First operand 387 states and 681 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,023 INFO L93 Difference]: Finished difference Result 733 states and 1305 transitions. [2024-11-16 03:02:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-16 03:02:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,025 INFO L225 Difference]: With dead ends: 733 [2024-11-16 03:02:16,025 INFO L226 Difference]: Without dead ends: 730 [2024-11-16 03:02:16,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,027 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 66 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 187 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-16 03:02:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 527. [2024-11-16 03:02:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.7433460076045628) internal successors, (917), 526 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 917 transitions. [2024-11-16 03:02:16,040 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 917 transitions. Word has length 27 [2024-11-16 03:02:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,040 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 917 transitions. [2024-11-16 03:02:16,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 917 transitions. [2024-11-16 03:02:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 03:02:16,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,041 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] [2024-11-16 03:02:16,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:02:16,042 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -773350597, now seen corresponding path program 1 times [2024-11-16 03:02:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897037701] [2024-11-16 03:02:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897037701] [2024-11-16 03:02:16,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897037701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231971850] [2024-11-16 03:02:16,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,065 INFO L87 Difference]: Start difference. First operand 527 states and 917 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,081 INFO L93 Difference]: Finished difference Result 1269 states and 2217 transitions. [2024-11-16 03:02:16,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-16 03:02:16,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,084 INFO L225 Difference]: With dead ends: 1269 [2024-11-16 03:02:16,084 INFO L226 Difference]: Without dead ends: 754 [2024-11-16 03:02:16,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,085 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 221 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-16 03:02:16,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 751. [2024-11-16 03:02:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 1.7346666666666666) internal successors, (1301), 750 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1301 transitions. [2024-11-16 03:02:16,121 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1301 transitions. Word has length 27 [2024-11-16 03:02:16,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,121 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1301 transitions. [2024-11-16 03:02:16,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1301 transitions. [2024-11-16 03:02:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 03:02:16,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,122 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] [2024-11-16 03:02:16,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:02:16,123 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2089331335, now seen corresponding path program 1 times [2024-11-16 03:02:16,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736678514] [2024-11-16 03:02:16,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736678514] [2024-11-16 03:02:16,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736678514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141973503] [2024-11-16 03:02:16,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,153 INFO L87 Difference]: Start difference. First operand 751 states and 1301 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,169 INFO L93 Difference]: Finished difference Result 1129 states and 1949 transitions. [2024-11-16 03:02:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-16 03:02:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,173 INFO L225 Difference]: With dead ends: 1129 [2024-11-16 03:02:16,176 INFO L226 Difference]: Without dead ends: 762 [2024-11-16 03:02:16,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,178 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 74 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 234 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-16 03:02:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 759. [2024-11-16 03:02:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 1.7163588390501319) internal successors, (1301), 758 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1301 transitions. [2024-11-16 03:02:16,193 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1301 transitions. Word has length 28 [2024-11-16 03:02:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,194 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 1301 transitions. [2024-11-16 03:02:16,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1301 transitions. [2024-11-16 03:02:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 03:02:16,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,195 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] [2024-11-16 03:02:16,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:02:16,195 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1796811736, now seen corresponding path program 1 times [2024-11-16 03:02:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189208226] [2024-11-16 03:02:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189208226] [2024-11-16 03:02:16,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189208226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399964217] [2024-11-16 03:02:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,224 INFO L87 Difference]: Start difference. First operand 759 states and 1301 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,245 INFO L93 Difference]: Finished difference Result 1421 states and 2473 transitions. [2024-11-16 03:02:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-16 03:02:16,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,249 INFO L225 Difference]: With dead ends: 1421 [2024-11-16 03:02:16,250 INFO L226 Difference]: Without dead ends: 1418 [2024-11-16 03:02:16,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,251 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 63 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 185 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-16 03:02:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1047. [2024-11-16 03:02:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1046 states have (on average 1.687380497131931) internal successors, (1765), 1046 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1765 transitions. [2024-11-16 03:02:16,275 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1765 transitions. Word has length 28 [2024-11-16 03:02:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,275 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1765 transitions. [2024-11-16 03:02:16,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1765 transitions. [2024-11-16 03:02:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 03:02:16,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,277 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] [2024-11-16 03:02:16,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:02:16,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,277 INFO L85 PathProgramCache]: Analyzing trace with hash 952339865, now seen corresponding path program 1 times [2024-11-16 03:02:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743601498] [2024-11-16 03:02:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743601498] [2024-11-16 03:02:16,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743601498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777906272] [2024-11-16 03:02:16,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,303 INFO L87 Difference]: Start difference. First operand 1047 states and 1765 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,345 INFO L93 Difference]: Finished difference Result 2509 states and 4249 transitions. [2024-11-16 03:02:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-16 03:02:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,350 INFO L225 Difference]: With dead ends: 2509 [2024-11-16 03:02:16,350 INFO L226 Difference]: Without dead ends: 1482 [2024-11-16 03:02:16,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,352 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 71 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2024-11-16 03:02:16,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1479. [2024-11-16 03:02:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 1.6813261163734776) internal successors, (2485), 1478 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2485 transitions. [2024-11-16 03:02:16,383 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2485 transitions. Word has length 28 [2024-11-16 03:02:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,383 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2485 transitions. [2024-11-16 03:02:16,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2485 transitions. [2024-11-16 03:02:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 03:02:16,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,385 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] [2024-11-16 03:02:16,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:02:16,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -132541292, now seen corresponding path program 1 times [2024-11-16 03:02:16,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757333227] [2024-11-16 03:02:16,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757333227] [2024-11-16 03:02:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757333227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113973340] [2024-11-16 03:02:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,430 INFO L87 Difference]: Start difference. First operand 1479 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,459 INFO L93 Difference]: Finished difference Result 2221 states and 3721 transitions. [2024-11-16 03:02:16,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 03:02:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,464 INFO L225 Difference]: With dead ends: 2221 [2024-11-16 03:02:16,464 INFO L226 Difference]: Without dead ends: 1498 [2024-11-16 03:02:16,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,466 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 73 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 230 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-16 03:02:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1495. [2024-11-16 03:02:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 1.6633199464524766) internal successors, (2485), 1494 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2485 transitions. [2024-11-16 03:02:16,504 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2485 transitions. Word has length 29 [2024-11-16 03:02:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,504 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 2485 transitions. [2024-11-16 03:02:16,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2485 transitions. [2024-11-16 03:02:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 03:02:16,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,506 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] [2024-11-16 03:02:16,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:02:16,506 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,507 INFO L85 PathProgramCache]: Analyzing trace with hash -541365517, now seen corresponding path program 1 times [2024-11-16 03:02:16,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763592911] [2024-11-16 03:02:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763592911] [2024-11-16 03:02:16,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763592911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953567250] [2024-11-16 03:02:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,538 INFO L87 Difference]: Start difference. First operand 1495 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,576 INFO L93 Difference]: Finished difference Result 2765 states and 4681 transitions. [2024-11-16 03:02:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 03:02:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,584 INFO L225 Difference]: With dead ends: 2765 [2024-11-16 03:02:16,584 INFO L226 Difference]: Without dead ends: 2762 [2024-11-16 03:02:16,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,587 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 183 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2024-11-16 03:02:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2087. [2024-11-16 03:02:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2086 states have (on average 1.6284755512943432) internal successors, (3397), 2086 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 3397 transitions. [2024-11-16 03:02:16,631 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 3397 transitions. Word has length 29 [2024-11-16 03:02:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,631 INFO L471 AbstractCegarLoop]: Abstraction has 2087 states and 3397 transitions. [2024-11-16 03:02:16,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 3397 transitions. [2024-11-16 03:02:16,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 03:02:16,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,633 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] [2024-11-16 03:02:16,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:02:16,634 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1385837388, now seen corresponding path program 1 times [2024-11-16 03:02:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867082280] [2024-11-16 03:02:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867082280] [2024-11-16 03:02:16,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867082280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033178165] [2024-11-16 03:02:16,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,655 INFO L87 Difference]: Start difference. First operand 2087 states and 3397 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,706 INFO L93 Difference]: Finished difference Result 4973 states and 8137 transitions. [2024-11-16 03:02:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 03:02:16,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,717 INFO L225 Difference]: With dead ends: 4973 [2024-11-16 03:02:16,718 INFO L226 Difference]: Without dead ends: 2922 [2024-11-16 03:02:16,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,723 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 70 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 223 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-11-16 03:02:16,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2919. [2024-11-16 03:02:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2918 states have (on average 1.6247429746401645) internal successors, (4741), 2918 states have internal predecessors, (4741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4741 transitions. [2024-11-16 03:02:16,808 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4741 transitions. Word has length 29 [2024-11-16 03:02:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,809 INFO L471 AbstractCegarLoop]: Abstraction has 2919 states and 4741 transitions. [2024-11-16 03:02:16,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4741 transitions. [2024-11-16 03:02:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 03:02:16,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,811 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] [2024-11-16 03:02:16,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 03:02:16,811 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,812 INFO L85 PathProgramCache]: Analyzing trace with hash 398401170, now seen corresponding path program 1 times [2024-11-16 03:02:16,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024693860] [2024-11-16 03:02:16,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024693860] [2024-11-16 03:02:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024693860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752393795] [2024-11-16 03:02:16,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,830 INFO L87 Difference]: Start difference. First operand 2919 states and 4741 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:16,868 INFO L93 Difference]: Finished difference Result 4381 states and 7097 transitions. [2024-11-16 03:02:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-16 03:02:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:16,875 INFO L225 Difference]: With dead ends: 4381 [2024-11-16 03:02:16,875 INFO L226 Difference]: Without dead ends: 2954 [2024-11-16 03:02:16,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,877 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:16,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 226 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2024-11-16 03:02:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2951. [2024-11-16 03:02:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2950 states have (on average 1.6071186440677967) internal successors, (4741), 2950 states have internal predecessors, (4741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4741 transitions. [2024-11-16 03:02:16,933 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4741 transitions. Word has length 30 [2024-11-16 03:02:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:16,933 INFO L471 AbstractCegarLoop]: Abstraction has 2951 states and 4741 transitions. [2024-11-16 03:02:16,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4741 transitions. [2024-11-16 03:02:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 03:02:16,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:16,935 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] [2024-11-16 03:02:16,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 03:02:16,936 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:16,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:16,936 INFO L85 PathProgramCache]: Analyzing trace with hash -10423055, now seen corresponding path program 1 times [2024-11-16 03:02:16,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192344862] [2024-11-16 03:02:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:16,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192344862] [2024-11-16 03:02:16,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192344862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:16,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:16,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:16,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529087215] [2024-11-16 03:02:16,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:16,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:16,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:16,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:16,953 INFO L87 Difference]: Start difference. First operand 2951 states and 4741 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:17,022 INFO L93 Difference]: Finished difference Result 5389 states and 8841 transitions. [2024-11-16 03:02:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-16 03:02:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:17,044 INFO L225 Difference]: With dead ends: 5389 [2024-11-16 03:02:17,044 INFO L226 Difference]: Without dead ends: 5386 [2024-11-16 03:02:17,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,046 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 57 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:17,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 181 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2024-11-16 03:02:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 4167. [2024-11-16 03:02:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4167 states, 4166 states have (on average 1.5681709073451753) internal successors, (6533), 4166 states have internal predecessors, (6533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4167 states to 4167 states and 6533 transitions. [2024-11-16 03:02:17,134 INFO L78 Accepts]: Start accepts. Automaton has 4167 states and 6533 transitions. Word has length 30 [2024-11-16 03:02:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:17,135 INFO L471 AbstractCegarLoop]: Abstraction has 4167 states and 6533 transitions. [2024-11-16 03:02:17,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4167 states and 6533 transitions. [2024-11-16 03:02:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 03:02:17,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:17,139 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] [2024-11-16 03:02:17,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 03:02:17,140 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:17,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash -854894926, now seen corresponding path program 1 times [2024-11-16 03:02:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:17,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330920972] [2024-11-16 03:02:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:17,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:17,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330920972] [2024-11-16 03:02:17,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330920972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:17,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:17,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:17,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434819233] [2024-11-16 03:02:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:17,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,167 INFO L87 Difference]: Start difference. First operand 4167 states and 6533 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:17,241 INFO L93 Difference]: Finished difference Result 9869 states and 15561 transitions. [2024-11-16 03:02:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:17,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-16 03:02:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:17,254 INFO L225 Difference]: With dead ends: 9869 [2024-11-16 03:02:17,254 INFO L226 Difference]: Without dead ends: 5770 [2024-11-16 03:02:17,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,259 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:17,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2024-11-16 03:02:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5767. [2024-11-16 03:02:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 1.5659035726673605) internal successors, (9029), 5766 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 9029 transitions. [2024-11-16 03:02:17,410 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 9029 transitions. Word has length 30 [2024-11-16 03:02:17,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:17,410 INFO L471 AbstractCegarLoop]: Abstraction has 5767 states and 9029 transitions. [2024-11-16 03:02:17,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 9029 transitions. [2024-11-16 03:02:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 03:02:17,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:17,415 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] [2024-11-16 03:02:17,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 03:02:17,415 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:17,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash -322258419, now seen corresponding path program 1 times [2024-11-16 03:02:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550961571] [2024-11-16 03:02:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:17,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:17,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550961571] [2024-11-16 03:02:17,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550961571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:17,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:17,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:17,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114019682] [2024-11-16 03:02:17,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:17,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:17,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:17,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:17,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,438 INFO L87 Difference]: Start difference. First operand 5767 states and 9029 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:17,523 INFO L93 Difference]: Finished difference Result 8653 states and 13513 transitions. [2024-11-16 03:02:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-16 03:02:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:17,536 INFO L225 Difference]: With dead ends: 8653 [2024-11-16 03:02:17,536 INFO L226 Difference]: Without dead ends: 5834 [2024-11-16 03:02:17,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,540 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 71 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:17,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 222 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2024-11-16 03:02:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5831. [2024-11-16 03:02:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5831 states, 5830 states have (on average 1.548713550600343) internal successors, (9029), 5830 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5831 states to 5831 states and 9029 transitions. [2024-11-16 03:02:17,671 INFO L78 Accepts]: Start accepts. Automaton has 5831 states and 9029 transitions. Word has length 31 [2024-11-16 03:02:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:17,671 INFO L471 AbstractCegarLoop]: Abstraction has 5831 states and 9029 transitions. [2024-11-16 03:02:17,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5831 states and 9029 transitions. [2024-11-16 03:02:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 03:02:17,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:17,676 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] [2024-11-16 03:02:17,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 03:02:17,676 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:17,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash -731082644, now seen corresponding path program 1 times [2024-11-16 03:02:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:17,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165571169] [2024-11-16 03:02:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:17,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:17,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165571169] [2024-11-16 03:02:17,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165571169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:17,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:17,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:17,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970824127] [2024-11-16 03:02:17,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:17,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,702 INFO L87 Difference]: Start difference. First operand 5831 states and 9029 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:17,841 INFO L93 Difference]: Finished difference Result 17101 states and 26313 transitions. [2024-11-16 03:02:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-16 03:02:17,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:17,856 INFO L225 Difference]: With dead ends: 17101 [2024-11-16 03:02:17,856 INFO L226 Difference]: Without dead ends: 11402 [2024-11-16 03:02:17,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:17,862 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:17,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 193 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2024-11-16 03:02:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 11399. [2024-11-16 03:02:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11399 states, 11398 states have (on average 1.5164941217757502) internal successors, (17285), 11398 states have internal predecessors, (17285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11399 states to 11399 states and 17285 transitions. [2024-11-16 03:02:18,082 INFO L78 Accepts]: Start accepts. Automaton has 11399 states and 17285 transitions. Word has length 31 [2024-11-16 03:02:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:18,082 INFO L471 AbstractCegarLoop]: Abstraction has 11399 states and 17285 transitions. [2024-11-16 03:02:18,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,083 INFO L276 IsEmpty]: Start isEmpty. Operand 11399 states and 17285 transitions. [2024-11-16 03:02:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 03:02:18,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:18,089 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] [2024-11-16 03:02:18,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 03:02:18,089 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:18,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash 113389227, now seen corresponding path program 1 times [2024-11-16 03:02:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:18,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880933229] [2024-11-16 03:02:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:18,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:18,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:18,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880933229] [2024-11-16 03:02:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880933229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529660419] [2024-11-16 03:02:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:18,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:18,108 INFO L87 Difference]: Start difference. First operand 11399 states and 17285 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:18,256 INFO L93 Difference]: Finished difference Result 13581 states and 21257 transitions. [2024-11-16 03:02:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:18,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-16 03:02:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:18,273 INFO L225 Difference]: With dead ends: 13581 [2024-11-16 03:02:18,274 INFO L226 Difference]: Without dead ends: 13578 [2024-11-16 03:02:18,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:18,276 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 54 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:18,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 241 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13578 states. [2024-11-16 03:02:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13578 to 11399. [2024-11-16 03:02:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11399 states, 11398 states have (on average 1.5052640814177927) internal successors, (17157), 11398 states have internal predecessors, (17157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11399 states to 11399 states and 17157 transitions. [2024-11-16 03:02:18,500 INFO L78 Accepts]: Start accepts. Automaton has 11399 states and 17157 transitions. Word has length 31 [2024-11-16 03:02:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:18,500 INFO L471 AbstractCegarLoop]: Abstraction has 11399 states and 17157 transitions. [2024-11-16 03:02:18,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 11399 states and 17157 transitions. [2024-11-16 03:02:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-16 03:02:18,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:18,509 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] [2024-11-16 03:02:18,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 03:02:18,509 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:18,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1187875925, now seen corresponding path program 1 times [2024-11-16 03:02:18,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106213012] [2024-11-16 03:02:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:18,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106213012] [2024-11-16 03:02:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106213012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:18,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:18,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:18,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241563246] [2024-11-16 03:02:18,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:18,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:18,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:18,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:18,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:18,529 INFO L87 Difference]: Start difference. First operand 11399 states and 17157 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:18,728 INFO L93 Difference]: Finished difference Result 20365 states and 31369 transitions. [2024-11-16 03:02:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:18,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2024-11-16 03:02:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:18,762 INFO L225 Difference]: With dead ends: 20365 [2024-11-16 03:02:18,763 INFO L226 Difference]: Without dead ends: 20362 [2024-11-16 03:02:18,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:18,772 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 51 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:18,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 177 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20362 states. [2024-11-16 03:02:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20362 to 16519. [2024-11-16 03:02:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16519 states, 16518 states have (on average 1.4648867901683011) internal successors, (24197), 16518 states have internal predecessors, (24197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16519 states to 16519 states and 24197 transitions. [2024-11-16 03:02:19,035 INFO L78 Accepts]: Start accepts. Automaton has 16519 states and 24197 transitions. Word has length 32 [2024-11-16 03:02:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:19,035 INFO L471 AbstractCegarLoop]: Abstraction has 16519 states and 24197 transitions. [2024-11-16 03:02:19,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 16519 states and 24197 transitions. [2024-11-16 03:02:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-16 03:02:19,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:19,048 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] [2024-11-16 03:02:19,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 03:02:19,048 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:19,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2032347796, now seen corresponding path program 1 times [2024-11-16 03:02:19,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:19,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638646112] [2024-11-16 03:02:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:19,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:19,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:19,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638646112] [2024-11-16 03:02:19,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638646112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:19,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:19,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197401685] [2024-11-16 03:02:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:19,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:19,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:19,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:19,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:19,077 INFO L87 Difference]: Start difference. First operand 16519 states and 24197 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:19,281 INFO L93 Difference]: Finished difference Result 38797 states and 57225 transitions. [2024-11-16 03:02:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2024-11-16 03:02:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:19,310 INFO L225 Difference]: With dead ends: 38797 [2024-11-16 03:02:19,310 INFO L226 Difference]: Without dead ends: 22410 [2024-11-16 03:02:19,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:19,330 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:19,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 226 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22410 states. [2024-11-16 03:02:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22410 to 22407. [2024-11-16 03:02:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22407 states, 22406 states have (on average 1.4626885655627957) internal successors, (32773), 22406 states have internal predecessors, (32773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22407 states to 22407 states and 32773 transitions. [2024-11-16 03:02:19,763 INFO L78 Accepts]: Start accepts. Automaton has 22407 states and 32773 transitions. Word has length 32 [2024-11-16 03:02:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:19,764 INFO L471 AbstractCegarLoop]: Abstraction has 22407 states and 32773 transitions. [2024-11-16 03:02:19,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 22407 states and 32773 transitions. [2024-11-16 03:02:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 03:02:19,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:19,780 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] [2024-11-16 03:02:19,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 03:02:19,782 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:19,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:19,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1831394821, now seen corresponding path program 1 times [2024-11-16 03:02:19,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:19,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79709535] [2024-11-16 03:02:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:19,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:19,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:19,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79709535] [2024-11-16 03:02:19,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79709535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:19,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:19,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260869470] [2024-11-16 03:02:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:19,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:19,805 INFO L87 Difference]: Start difference. First operand 22407 states and 32773 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:20,062 INFO L93 Difference]: Finished difference Result 33805 states and 49417 transitions. [2024-11-16 03:02:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:20,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-16 03:02:20,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:20,095 INFO L225 Difference]: With dead ends: 33805 [2024-11-16 03:02:20,095 INFO L226 Difference]: Without dead ends: 22794 [2024-11-16 03:02:20,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:20,110 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 69 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:20,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 214 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22794 states. [2024-11-16 03:02:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22794 to 22791. [2024-11-16 03:02:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22791 states, 22790 states have (on average 1.4492759982448442) internal successors, (33029), 22790 states have internal predecessors, (33029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22791 states to 22791 states and 33029 transitions. [2024-11-16 03:02:20,491 INFO L78 Accepts]: Start accepts. Automaton has 22791 states and 33029 transitions. Word has length 33 [2024-11-16 03:02:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:20,491 INFO L471 AbstractCegarLoop]: Abstraction has 22791 states and 33029 transitions. [2024-11-16 03:02:20,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 22791 states and 33029 transitions. [2024-11-16 03:02:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 03:02:20,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:20,508 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] [2024-11-16 03:02:20,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 03:02:20,508 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:20,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1422570596, now seen corresponding path program 1 times [2024-11-16 03:02:20,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:20,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708995332] [2024-11-16 03:02:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:20,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708995332] [2024-11-16 03:02:20,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708995332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:20,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:20,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:20,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556121582] [2024-11-16 03:02:20,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:20,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:20,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:20,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:20,526 INFO L87 Difference]: Start difference. First operand 22791 states and 33029 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:20,867 INFO L93 Difference]: Finished difference Result 39949 states and 59145 transitions. [2024-11-16 03:02:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:20,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-16 03:02:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:20,910 INFO L225 Difference]: With dead ends: 39949 [2024-11-16 03:02:20,910 INFO L226 Difference]: Without dead ends: 39946 [2024-11-16 03:02:20,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:20,917 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 48 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:20,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 175 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:20,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39946 states. [2024-11-16 03:02:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39946 to 33287. [2024-11-16 03:02:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33287 states, 33286 states have (on average 1.407588776062008) internal successors, (46853), 33286 states have internal predecessors, (46853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33287 states to 33287 states and 46853 transitions. [2024-11-16 03:02:21,545 INFO L78 Accepts]: Start accepts. Automaton has 33287 states and 46853 transitions. Word has length 33 [2024-11-16 03:02:21,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:21,545 INFO L471 AbstractCegarLoop]: Abstraction has 33287 states and 46853 transitions. [2024-11-16 03:02:21,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 33287 states and 46853 transitions. [2024-11-16 03:02:21,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 03:02:21,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:21,570 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] [2024-11-16 03:02:21,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 03:02:21,570 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:21,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash 578098725, now seen corresponding path program 1 times [2024-11-16 03:02:21,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:21,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742760329] [2024-11-16 03:02:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:21,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:21,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:21,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742760329] [2024-11-16 03:02:21,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742760329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:21,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:21,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597562370] [2024-11-16 03:02:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:21,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:21,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:21,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:21,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:21,591 INFO L87 Difference]: Start difference. First operand 33287 states and 46853 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:21,894 INFO L93 Difference]: Finished difference Result 77325 states and 109321 transitions. [2024-11-16 03:02:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:21,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-16 03:02:21,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:21,936 INFO L225 Difference]: With dead ends: 77325 [2024-11-16 03:02:21,936 INFO L226 Difference]: Without dead ends: 44554 [2024-11-16 03:02:21,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:21,967 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 66 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:21,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 227 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44554 states. [2024-11-16 03:02:22,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44554 to 44551. [2024-11-16 03:02:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44551 states, 44550 states have (on average 1.4022222222222223) internal successors, (62469), 44550 states have internal predecessors, (62469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44551 states to 44551 states and 62469 transitions. [2024-11-16 03:02:23,060 INFO L78 Accepts]: Start accepts. Automaton has 44551 states and 62469 transitions. Word has length 33 [2024-11-16 03:02:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:23,060 INFO L471 AbstractCegarLoop]: Abstraction has 44551 states and 62469 transitions. [2024-11-16 03:02:23,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 44551 states and 62469 transitions. [2024-11-16 03:02:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 03:02:23,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:23,075 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] [2024-11-16 03:02:23,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 03:02:23,076 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:23,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1150851621, now seen corresponding path program 1 times [2024-11-16 03:02:23,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:23,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213743581] [2024-11-16 03:02:23,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:23,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:23,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:23,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213743581] [2024-11-16 03:02:23,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213743581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:23,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:23,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:23,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499330020] [2024-11-16 03:02:23,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:23,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:23,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:23,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:23,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:23,091 INFO L87 Difference]: Start difference. First operand 44551 states and 62469 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:23,412 INFO L93 Difference]: Finished difference Result 66829 states and 93449 transitions. [2024-11-16 03:02:23,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-16 03:02:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:23,467 INFO L225 Difference]: With dead ends: 66829 [2024-11-16 03:02:23,467 INFO L226 Difference]: Without dead ends: 45066 [2024-11-16 03:02:23,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:23,490 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 68 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:23,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 210 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45066 states. [2024-11-16 03:02:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45066 to 45063. [2024-11-16 03:02:24,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45063 states, 45062 states have (on average 1.386290000443833) internal successors, (62469), 45062 states have internal predecessors, (62469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45063 states to 45063 states and 62469 transitions. [2024-11-16 03:02:24,332 INFO L78 Accepts]: Start accepts. Automaton has 45063 states and 62469 transitions. Word has length 34 [2024-11-16 03:02:24,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:24,332 INFO L471 AbstractCegarLoop]: Abstraction has 45063 states and 62469 transitions. [2024-11-16 03:02:24,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45063 states and 62469 transitions. [2024-11-16 03:02:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 03:02:24,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:24,348 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] [2024-11-16 03:02:24,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 03:02:24,349 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:24,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 742027396, now seen corresponding path program 1 times [2024-11-16 03:02:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:24,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647535231] [2024-11-16 03:02:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:24,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647535231] [2024-11-16 03:02:24,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647535231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:24,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483879551] [2024-11-16 03:02:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:24,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:24,371 INFO L87 Difference]: Start difference. First operand 45063 states and 62469 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:25,142 INFO L93 Difference]: Finished difference Result 77837 states and 110089 transitions. [2024-11-16 03:02:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-16 03:02:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:25,234 INFO L225 Difference]: With dead ends: 77837 [2024-11-16 03:02:25,234 INFO L226 Difference]: Without dead ends: 77834 [2024-11-16 03:02:25,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:25,249 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 45 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:25,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 173 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77834 states. [2024-11-16 03:02:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77834 to 66567. [2024-11-16 03:02:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66567 states, 66566 states have (on average 1.3461076225099902) internal successors, (89605), 66566 states have internal predecessors, (89605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66567 states to 66567 states and 89605 transitions. [2024-11-16 03:02:26,446 INFO L78 Accepts]: Start accepts. Automaton has 66567 states and 89605 transitions. Word has length 34 [2024-11-16 03:02:26,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:26,446 INFO L471 AbstractCegarLoop]: Abstraction has 66567 states and 89605 transitions. [2024-11-16 03:02:26,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 66567 states and 89605 transitions. [2024-11-16 03:02:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 03:02:26,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:26,478 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] [2024-11-16 03:02:26,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 03:02:26,478 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:26,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash -102444475, now seen corresponding path program 1 times [2024-11-16 03:02:26,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:26,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54283991] [2024-11-16 03:02:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:26,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54283991] [2024-11-16 03:02:26,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54283991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:26,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:26,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415615221] [2024-11-16 03:02:26,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:26,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:26,493 INFO L87 Difference]: Start difference. First operand 66567 states and 89605 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:27,424 INFO L93 Difference]: Finished difference Result 153613 states and 207369 transitions. [2024-11-16 03:02:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:27,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-16 03:02:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:27,529 INFO L225 Difference]: With dead ends: 153613 [2024-11-16 03:02:27,530 INFO L226 Difference]: Without dead ends: 88074 [2024-11-16 03:02:27,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:27,578 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 65 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:27,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 228 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88074 states. [2024-11-16 03:02:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88074 to 88071. [2024-11-16 03:02:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88071 states, 88070 states have (on average 1.3371749744521404) internal successors, (117765), 88070 states have internal predecessors, (117765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88071 states to 88071 states and 117765 transitions. [2024-11-16 03:02:29,190 INFO L78 Accepts]: Start accepts. Automaton has 88071 states and 117765 transitions. Word has length 34 [2024-11-16 03:02:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:29,191 INFO L471 AbstractCegarLoop]: Abstraction has 88071 states and 117765 transitions. [2024-11-16 03:02:29,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:29,191 INFO L276 IsEmpty]: Start isEmpty. Operand 88071 states and 117765 transitions. [2024-11-16 03:02:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-16 03:02:29,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:29,223 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] [2024-11-16 03:02:29,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 03:02:29,223 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:29,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:29,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1528842174, now seen corresponding path program 1 times [2024-11-16 03:02:29,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:29,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869888689] [2024-11-16 03:02:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:29,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:29,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869888689] [2024-11-16 03:02:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869888689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:29,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:29,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928086916] [2024-11-16 03:02:29,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:29,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:29,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:29,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:29,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:29,242 INFO L87 Difference]: Start difference. First operand 88071 states and 117765 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:30,277 INFO L93 Difference]: Finished difference Result 132109 states and 176137 transitions. [2024-11-16 03:02:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-16 03:02:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:30,482 INFO L225 Difference]: With dead ends: 132109 [2024-11-16 03:02:30,482 INFO L226 Difference]: Without dead ends: 89098 [2024-11-16 03:02:30,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:30,506 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 67 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:30,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 206 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89098 states. [2024-11-16 03:02:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89098 to 89095. [2024-11-16 03:02:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89095 states, 89094 states have (on average 1.321806182234494) internal successors, (117765), 89094 states have internal predecessors, (117765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89095 states to 89095 states and 117765 transitions. [2024-11-16 03:02:31,807 INFO L78 Accepts]: Start accepts. Automaton has 89095 states and 117765 transitions. Word has length 35 [2024-11-16 03:02:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:31,808 INFO L471 AbstractCegarLoop]: Abstraction has 89095 states and 117765 transitions. [2024-11-16 03:02:31,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 89095 states and 117765 transitions. [2024-11-16 03:02:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-16 03:02:31,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:31,836 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] [2024-11-16 03:02:31,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 03:02:31,837 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:31,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1120017949, now seen corresponding path program 1 times [2024-11-16 03:02:31,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:31,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190907001] [2024-11-16 03:02:31,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:31,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:31,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:31,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190907001] [2024-11-16 03:02:31,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190907001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:31,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:31,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855734914] [2024-11-16 03:02:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:31,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:31,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:31,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:31,852 INFO L87 Difference]: Start difference. First operand 89095 states and 117765 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:33,563 INFO L93 Difference]: Finished difference Result 151565 states and 203785 transitions. [2024-11-16 03:02:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-16 03:02:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:33,729 INFO L225 Difference]: With dead ends: 151565 [2024-11-16 03:02:33,729 INFO L226 Difference]: Without dead ends: 151562 [2024-11-16 03:02:33,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:33,750 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 42 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:33,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:33,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151562 states. [2024-11-16 03:02:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151562 to 133127. [2024-11-16 03:02:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133127 states, 133126 states have (on average 1.2845950452954344) internal successors, (171013), 133126 states have internal predecessors, (171013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133127 states to 133127 states and 171013 transitions. [2024-11-16 03:02:35,811 INFO L78 Accepts]: Start accepts. Automaton has 133127 states and 171013 transitions. Word has length 35 [2024-11-16 03:02:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:35,812 INFO L471 AbstractCegarLoop]: Abstraction has 133127 states and 171013 transitions. [2024-11-16 03:02:35,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 133127 states and 171013 transitions. [2024-11-16 03:02:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-16 03:02:35,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:35,916 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] [2024-11-16 03:02:35,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 03:02:35,916 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:35,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 275546078, now seen corresponding path program 1 times [2024-11-16 03:02:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:35,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815852313] [2024-11-16 03:02:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:35,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815852313] [2024-11-16 03:02:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815852313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:35,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:35,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:35,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045108010] [2024-11-16 03:02:35,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:35,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:35,940 INFO L87 Difference]: Start difference. First operand 133127 states and 171013 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:37,939 INFO L93 Difference]: Finished difference Result 305165 states and 392201 transitions. [2024-11-16 03:02:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:37,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-16 03:02:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:38,163 INFO L225 Difference]: With dead ends: 305165 [2024-11-16 03:02:38,163 INFO L226 Difference]: Without dead ends: 174090 [2024-11-16 03:02:38,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:38,240 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 64 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:38,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 229 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174090 states. [2024-11-16 03:02:41,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174090 to 174087. [2024-11-16 03:02:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174087 states, 174086 states have (on average 1.27057316498742) internal successors, (221189), 174086 states have internal predecessors, (221189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174087 states to 174087 states and 221189 transitions. [2024-11-16 03:02:41,642 INFO L78 Accepts]: Start accepts. Automaton has 174087 states and 221189 transitions. Word has length 35 [2024-11-16 03:02:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:02:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 174087 states and 221189 transitions. [2024-11-16 03:02:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 174087 states and 221189 transitions. [2024-11-16 03:02:41,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 03:02:41,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:02:41,721 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] [2024-11-16 03:02:41,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 03:02:41,722 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:02:41,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:02:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash 361640702, now seen corresponding path program 1 times [2024-11-16 03:02:41,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:02:41,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633009406] [2024-11-16 03:02:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:02:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:02:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:02:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:02:41,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:02:41,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633009406] [2024-11-16 03:02:41,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633009406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:02:41,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:02:41,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:02:41,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839020396] [2024-11-16 03:02:41,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:02:41,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:02:41,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:02:41,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:02:41,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:41,740 INFO L87 Difference]: Start difference. First operand 174087 states and 221189 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:02:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:02:43,811 INFO L93 Difference]: Finished difference Result 261133 states and 330761 transitions. [2024-11-16 03:02:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:02:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2024-11-16 03:02:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:02:44,021 INFO L225 Difference]: With dead ends: 261133 [2024-11-16 03:02:44,021 INFO L226 Difference]: Without dead ends: 176138 [2024-11-16 03:02:44,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:02:44,079 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 66 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:02:44,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 202 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:02:44,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176138 states.