./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db87c07dbb7452fd246a98fbd617147a32e88270b5156b64dd08a046f6919e1f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:56:00,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:56:00,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:56:00,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:56:00,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:56:00,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:56:00,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:56:00,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:56:00,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:56:00,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:56:00,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:56:00,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:56:00,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:56:00,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:56:00,352 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:56:00,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:56:00,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:56:00,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:56:00,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:56:00,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:56:00,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:56:00,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:56:00,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:56:00,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:56:00,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:56:00,359 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:56:00,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:56:00,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:56:00,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:56:00,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:00,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:56:00,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:56:00,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:56:00,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:56:00,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:56:00,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:56:00,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:56:00,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:56:00,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:56:00,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db87c07dbb7452fd246a98fbd617147a32e88270b5156b64dd08a046f6919e1f [2024-11-16 11:56:00,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:56:00,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:56:00,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:56:00,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:56:00,629 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:56:00,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2024-11-16 11:56:02,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:56:02,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:56:02,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2024-11-16 11:56:02,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bda626e/8fdac55f977949dcbde3d996874d1538/FLAGcf61204d5 [2024-11-16 11:56:02,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bda626e/8fdac55f977949dcbde3d996874d1538 [2024-11-16 11:56:02,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:56:02,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:56:02,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:02,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:56:02,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:56:02,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e350e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02, skipping insertion in model container [2024-11-16 11:56:02,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:56:02,520 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1259,1272] [2024-11-16 11:56:02,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:02,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:56:02,610 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1259,1272] [2024-11-16 11:56:02,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:02,687 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:56:02,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02 WrapperNode [2024-11-16 11:56:02,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:02,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:02,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:56:02,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:56:02,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,769 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 427 [2024-11-16 11:56:02,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:02,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:56:02,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:56:02,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:56:02,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,843 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 11:56:02,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,912 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:56:02,944 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:56:02,944 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:56:02,944 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:56:02,945 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (1/1) ... [2024-11-16 11:56:02,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:02,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:02,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:56:03,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:56:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:56:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:56:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:56:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:56:03,173 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:56:03,176 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:56:03,862 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2024-11-16 11:56:03,862 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:56:03,914 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:56:03,915 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:56:03,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:03 BoogieIcfgContainer [2024-11-16 11:56:03,917 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:56:03,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:56:03,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:56:03,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:56:03,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:02" (1/3) ... [2024-11-16 11:56:03,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a59c958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:03, skipping insertion in model container [2024-11-16 11:56:03,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02" (2/3) ... [2024-11-16 11:56:03,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a59c958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:03, skipping insertion in model container [2024-11-16 11:56:03,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:03" (3/3) ... [2024-11-16 11:56:03,927 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2024-11-16 11:56:03,945 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:56:03,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:56:04,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:56:04,012 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;@35ea694a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:56:04,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:56:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 111 states have (on average 1.4774774774774775) internal successors, (164), 112 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 11:56:04,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:04,028 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 11:56:04,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:04,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1276653861, now seen corresponding path program 1 times [2024-11-16 11:56:04,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:04,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037358569] [2024-11-16 11:56:04,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:04,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:04,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037358569] [2024-11-16 11:56:04,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037358569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:04,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:04,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:04,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14024623] [2024-11-16 11:56:04,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:04,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:04,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:56:04,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:04,738 INFO L87 Difference]: Start difference. First operand has 113 states, 111 states have (on average 1.4774774774774775) internal successors, (164), 112 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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 11:56:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:04,874 INFO L93 Difference]: Finished difference Result 205 states and 301 transitions. [2024-11-16 11:56:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:56:04,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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 11:56:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:04,885 INFO L225 Difference]: With dead ends: 205 [2024-11-16 11:56:04,886 INFO L226 Difference]: Without dead ends: 110 [2024-11-16 11:56:04,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:04,894 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:04,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 388 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:04,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-16 11:56:04,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-16 11:56:04,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4678899082568808) internal successors, (160), 109 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 160 transitions. [2024-11-16 11:56:04,944 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 160 transitions. Word has length 24 [2024-11-16 11:56:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:04,945 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 160 transitions. [2024-11-16 11:56:04,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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 11:56:04,945 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 160 transitions. [2024-11-16 11:56:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 11:56:04,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:04,948 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 11:56:04,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:56:04,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:04,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:04,950 INFO L85 PathProgramCache]: Analyzing trace with hash -776510538, now seen corresponding path program 1 times [2024-11-16 11:56:04,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:04,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937377324] [2024-11-16 11:56:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:04,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:05,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:05,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937377324] [2024-11-16 11:56:05,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937377324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:05,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:05,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:05,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547697431] [2024-11-16 11:56:05,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:05,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:56:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:05,095 INFO L87 Difference]: Start difference. First operand 110 states and 160 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 11:56:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:05,202 INFO L93 Difference]: Finished difference Result 204 states and 297 transitions. [2024-11-16 11:56:05,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:56:05,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 11:56:05,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:05,204 INFO L225 Difference]: With dead ends: 204 [2024-11-16 11:56:05,204 INFO L226 Difference]: Without dead ends: 112 [2024-11-16 11:56:05,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:05,209 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:05,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:05,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-16 11:56:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-16 11:56:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.4594594594594594) internal successors, (162), 111 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2024-11-16 11:56:05,226 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 25 [2024-11-16 11:56:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:05,229 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2024-11-16 11:56:05,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 11:56:05,230 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2024-11-16 11:56:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 11:56:05,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:05,231 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 11:56:05,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:56:05,231 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:05,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1445220768, now seen corresponding path program 1 times [2024-11-16 11:56:05,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:05,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077292025] [2024-11-16 11:56:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:05,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:05,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077292025] [2024-11-16 11:56:05,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077292025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:05,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:05,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562079477] [2024-11-16 11:56:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:05,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:05,517 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 11:56:05,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:05,732 INFO L93 Difference]: Finished difference Result 217 states and 315 transitions. [2024-11-16 11:56:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:05,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 11:56:05,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:05,736 INFO L225 Difference]: With dead ends: 217 [2024-11-16 11:56:05,739 INFO L226 Difference]: Without dead ends: 123 [2024-11-16 11:56:05,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:05,741 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 26 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:05,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 718 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-16 11:56:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-16 11:56:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 121 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 175 transitions. [2024-11-16 11:56:05,751 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 175 transitions. Word has length 26 [2024-11-16 11:56:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:05,752 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 175 transitions. [2024-11-16 11:56:05,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 11:56:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 175 transitions. [2024-11-16 11:56:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 11:56:05,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:05,753 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 11:56:05,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:56:05,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:05,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash 261866353, now seen corresponding path program 1 times [2024-11-16 11:56:05,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:05,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326904509] [2024-11-16 11:56:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:05,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:06,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326904509] [2024-11-16 11:56:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326904509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:06,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 11:56:06,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763906614] [2024-11-16 11:56:06,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:06,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 11:56:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:06,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 11:56:06,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:56:06,170 INFO L87 Difference]: Start difference. First operand 122 states and 175 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 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 11:56:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:06,516 INFO L93 Difference]: Finished difference Result 300 states and 432 transitions. [2024-11-16 11:56:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:56:06,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 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 11:56:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:06,518 INFO L225 Difference]: With dead ends: 300 [2024-11-16 11:56:06,520 INFO L226 Difference]: Without dead ends: 206 [2024-11-16 11:56:06,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 11:56:06,522 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 143 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:06,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1038 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:56:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-16 11:56:06,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 124. [2024-11-16 11:56:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.4390243902439024) internal successors, (177), 123 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 177 transitions. [2024-11-16 11:56:06,541 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 177 transitions. Word has length 27 [2024-11-16 11:56:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:06,542 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 177 transitions. [2024-11-16 11:56:06,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 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 11:56:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 177 transitions. [2024-11-16 11:56:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 11:56:06,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:06,544 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 11:56:06,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:56:06,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:06,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash -926698708, now seen corresponding path program 1 times [2024-11-16 11:56:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:06,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244664839] [2024-11-16 11:56:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:06,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:06,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:06,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244664839] [2024-11-16 11:56:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244664839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:06,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798075156] [2024-11-16 11:56:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:06,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:06,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:06,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:06,731 INFO L87 Difference]: Start difference. First operand 124 states and 177 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 11:56:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:06,930 INFO L93 Difference]: Finished difference Result 302 states and 431 transitions. [2024-11-16 11:56:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:06,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 11:56:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:06,931 INFO L225 Difference]: With dead ends: 302 [2024-11-16 11:56:06,931 INFO L226 Difference]: Without dead ends: 199 [2024-11-16 11:56:06,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:56:06,933 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 128 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:06,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 695 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:06,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-16 11:56:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 125. [2024-11-16 11:56:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 124 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 177 transitions. [2024-11-16 11:56:06,950 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 177 transitions. Word has length 27 [2024-11-16 11:56:06,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:06,951 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 177 transitions. [2024-11-16 11:56:06,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 11:56:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 177 transitions. [2024-11-16 11:56:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 11:56:06,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:06,952 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 11:56:06,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:56:06,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:06,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:06,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2021864837, now seen corresponding path program 1 times [2024-11-16 11:56:06,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:06,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118787852] [2024-11-16 11:56:06,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:07,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:07,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118787852] [2024-11-16 11:56:07,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118787852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:07,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:07,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:07,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105888972] [2024-11-16 11:56:07,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:07,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:07,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:07,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:07,054 INFO L87 Difference]: Start difference. First operand 125 states and 177 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 11:56:07,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:07,161 INFO L93 Difference]: Finished difference Result 285 states and 407 transitions. [2024-11-16 11:56:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 11:56:07,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:07,163 INFO L225 Difference]: With dead ends: 285 [2024-11-16 11:56:07,163 INFO L226 Difference]: Without dead ends: 182 [2024-11-16 11:56:07,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:56:07,165 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 113 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:07,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 483 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-16 11:56:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 121. [2024-11-16 11:56:07,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.425) internal successors, (171), 120 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:07,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 171 transitions. [2024-11-16 11:56:07,178 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 171 transitions. Word has length 28 [2024-11-16 11:56:07,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:07,179 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 171 transitions. [2024-11-16 11:56:07,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 11:56:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 171 transitions. [2024-11-16 11:56:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 11:56:07,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:07,183 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:07,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:56:07,183 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:07,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:07,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1604523655, now seen corresponding path program 1 times [2024-11-16 11:56:07,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:07,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971709881] [2024-11-16 11:56:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:07,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:07,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971709881] [2024-11-16 11:56:07,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971709881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:07,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:07,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:07,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158232036] [2024-11-16 11:56:07,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:07,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:07,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:07,645 INFO L87 Difference]: Start difference. First operand 121 states and 171 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:07,818 INFO L93 Difference]: Finished difference Result 279 states and 401 transitions. [2024-11-16 11:56:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:07,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-16 11:56:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:07,820 INFO L225 Difference]: With dead ends: 279 [2024-11-16 11:56:07,820 INFO L226 Difference]: Without dead ends: 185 [2024-11-16 11:56:07,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:56:07,821 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:07,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 612 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-16 11:56:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 138. [2024-11-16 11:56:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4087591240875912) internal successors, (193), 137 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 193 transitions. [2024-11-16 11:56:07,827 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 193 transitions. Word has length 72 [2024-11-16 11:56:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:07,828 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 193 transitions. [2024-11-16 11:56:07,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 193 transitions. [2024-11-16 11:56:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 11:56:07,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:07,830 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:07,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:56:07,830 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:07,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:07,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1895740566, now seen corresponding path program 1 times [2024-11-16 11:56:07,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:07,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14517746] [2024-11-16 11:56:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:07,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:08,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:08,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14517746] [2024-11-16 11:56:08,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14517746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:08,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:08,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:08,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462083390] [2024-11-16 11:56:08,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:08,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:08,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:08,073 INFO L87 Difference]: Start difference. First operand 138 states and 193 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:08,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:08,186 INFO L93 Difference]: Finished difference Result 269 states and 384 transitions. [2024-11-16 11:56:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:08,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-16 11:56:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:08,188 INFO L225 Difference]: With dead ends: 269 [2024-11-16 11:56:08,188 INFO L226 Difference]: Without dead ends: 175 [2024-11-16 11:56:08,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:56:08,189 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 83 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:08,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 470 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-16 11:56:08,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 138. [2024-11-16 11:56:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4014598540145986) internal successors, (192), 137 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 192 transitions. [2024-11-16 11:56:08,193 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 192 transitions. Word has length 73 [2024-11-16 11:56:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:08,193 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 192 transitions. [2024-11-16 11:56:08,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 192 transitions. [2024-11-16 11:56:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 11:56:08,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:08,195 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:08,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:56:08,196 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:08,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:08,196 INFO L85 PathProgramCache]: Analyzing trace with hash 136698801, now seen corresponding path program 1 times [2024-11-16 11:56:08,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:08,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151321922] [2024-11-16 11:56:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:08,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:08,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:08,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151321922] [2024-11-16 11:56:08,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151321922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:08,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56777157] [2024-11-16 11:56:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:08,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:08,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:08,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:08,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 11:56:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:08,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-16 11:56:08,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:09,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:56:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56777157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:09,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 11:56:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2024-11-16 11:56:09,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288374341] [2024-11-16 11:56:09,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:09,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:56:09,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:09,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:56:09,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-16 11:56:09,201 INFO L87 Difference]: Start difference. First operand 138 states and 192 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:09,466 INFO L93 Difference]: Finished difference Result 285 states and 407 transitions. [2024-11-16 11:56:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:56:09,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-16 11:56:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:09,470 INFO L225 Difference]: With dead ends: 285 [2024-11-16 11:56:09,470 INFO L226 Difference]: Without dead ends: 191 [2024-11-16 11:56:09,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-16 11:56:09,471 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 104 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:09,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 811 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-16 11:56:09,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 150. [2024-11-16 11:56:09,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.395973154362416) internal successors, (208), 149 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 208 transitions. [2024-11-16 11:56:09,480 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 208 transitions. Word has length 73 [2024-11-16 11:56:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:09,480 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 208 transitions. [2024-11-16 11:56:09,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 208 transitions. [2024-11-16 11:56:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 11:56:09,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:09,482 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:09,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 11:56:09,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:09,683 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:09,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1112217701, now seen corresponding path program 1 times [2024-11-16 11:56:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:09,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656038627] [2024-11-16 11:56:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:10,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656038627] [2024-11-16 11:56:10,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656038627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526356607] [2024-11-16 11:56:10,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:10,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:10,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:10,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:10,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 11:56:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:10,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 11:56:10,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:10,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:11,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526356607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:11,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:11,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-16 11:56:11,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063695916] [2024-11-16 11:56:11,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:11,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 11:56:11,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 11:56:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-11-16 11:56:11,099 INFO L87 Difference]: Start difference. First operand 150 states and 208 transitions. Second operand has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:11,537 INFO L93 Difference]: Finished difference Result 300 states and 428 transitions. [2024-11-16 11:56:11,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:56:11,538 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 0 states have call successors, (0), 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 74 [2024-11-16 11:56:11,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:11,540 INFO L225 Difference]: With dead ends: 300 [2024-11-16 11:56:11,540 INFO L226 Difference]: Without dead ends: 206 [2024-11-16 11:56:11,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2024-11-16 11:56:11,541 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 146 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:11,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1584 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:56:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-16 11:56:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 205. [2024-11-16 11:56:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.4068627450980393) internal successors, (287), 204 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 287 transitions. [2024-11-16 11:56:11,548 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 287 transitions. Word has length 74 [2024-11-16 11:56:11,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:11,548 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 287 transitions. [2024-11-16 11:56:11,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 287 transitions. [2024-11-16 11:56:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 11:56:11,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:11,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:11,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 11:56:11,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 11:56:11,751 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:11,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:11,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1752439219, now seen corresponding path program 1 times [2024-11-16 11:56:11,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042603705] [2024-11-16 11:56:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:11,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:12,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:12,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042603705] [2024-11-16 11:56:12,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042603705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:12,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531527646] [2024-11-16 11:56:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:12,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:12,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:12,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:12,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 11:56:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:12,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-16 11:56:12,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:12,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:13,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531527646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:13,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:13,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-16 11:56:13,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469350504] [2024-11-16 11:56:13,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:13,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 11:56:13,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:13,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 11:56:13,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2024-11-16 11:56:13,297 INFO L87 Difference]: Start difference. First operand 205 states and 287 transitions. Second operand has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:13,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:13,870 INFO L93 Difference]: Finished difference Result 438 states and 622 transitions. [2024-11-16 11:56:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 11:56:13,871 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 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 75 [2024-11-16 11:56:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:13,872 INFO L225 Difference]: With dead ends: 438 [2024-11-16 11:56:13,875 INFO L226 Difference]: Without dead ends: 337 [2024-11-16 11:56:13,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2024-11-16 11:56:13,877 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 153 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:13,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2044 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:56:13,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-16 11:56:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 317. [2024-11-16 11:56:13,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4177215189873418) internal successors, (448), 316 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2024-11-16 11:56:13,887 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 448 transitions. Word has length 75 [2024-11-16 11:56:13,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:13,887 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 448 transitions. [2024-11-16 11:56:13,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 448 transitions. [2024-11-16 11:56:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 11:56:13,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:13,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:13,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 11:56:14,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:14,090 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:14,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1471294132, now seen corresponding path program 1 times [2024-11-16 11:56:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:14,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214822102] [2024-11-16 11:56:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:14,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:14,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214822102] [2024-11-16 11:56:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214822102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:14,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:14,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 11:56:14,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682589388] [2024-11-16 11:56:14,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:14,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 11:56:14,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 11:56:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 11:56:14,518 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:14,579 INFO L93 Difference]: Finished difference Result 565 states and 805 transitions. [2024-11-16 11:56:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 11:56:14,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-16 11:56:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:14,581 INFO L225 Difference]: With dead ends: 565 [2024-11-16 11:56:14,581 INFO L226 Difference]: Without dead ends: 317 [2024-11-16 11:56:14,581 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 11:56:14,582 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 2 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:14,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 255 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-16 11:56:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-16 11:56:14,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4082278481012658) internal successors, (445), 316 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 445 transitions. [2024-11-16 11:56:14,589 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 445 transitions. Word has length 75 [2024-11-16 11:56:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:14,590 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 445 transitions. [2024-11-16 11:56:14,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 445 transitions. [2024-11-16 11:56:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 11:56:14,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:14,591 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:14,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:56:14,591 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:14,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 467735429, now seen corresponding path program 1 times [2024-11-16 11:56:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830297670] [2024-11-16 11:56:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830297670] [2024-11-16 11:56:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830297670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 11:56:15,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877916809] [2024-11-16 11:56:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:15,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 11:56:15,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 11:56:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:56:15,127 INFO L87 Difference]: Start difference. First operand 317 states and 445 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:15,494 INFO L93 Difference]: Finished difference Result 622 states and 883 transitions. [2024-11-16 11:56:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 11:56:15,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-16 11:56:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:15,497 INFO L225 Difference]: With dead ends: 622 [2024-11-16 11:56:15,497 INFO L226 Difference]: Without dead ends: 438 [2024-11-16 11:56:15,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-16 11:56:15,498 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 153 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:15,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1679 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:56:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-16 11:56:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 346. [2024-11-16 11:56:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.4057971014492754) internal successors, (485), 345 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 485 transitions. [2024-11-16 11:56:15,507 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 485 transitions. Word has length 76 [2024-11-16 11:56:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:15,507 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 485 transitions. [2024-11-16 11:56:15,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 485 transitions. [2024-11-16 11:56:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 11:56:15,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:15,510 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:15,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:56:15,510 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:15,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:15,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1552635602, now seen corresponding path program 1 times [2024-11-16 11:56:15,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:15,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442188876] [2024-11-16 11:56:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:15,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:16,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:16,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:16,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442188876] [2024-11-16 11:56:16,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442188876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:16,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436929442] [2024-11-16 11:56:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:16,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:16,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:16,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:16,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 11:56:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:16,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-16 11:56:16,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:17,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:18,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436929442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:18,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:18,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 18] total 44 [2024-11-16 11:56:18,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092961930] [2024-11-16 11:56:18,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:18,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-16 11:56:18,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:18,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-16 11:56:18,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1740, Unknown=0, NotChecked=0, Total=1892 [2024-11-16 11:56:18,200 INFO L87 Difference]: Start difference. First operand 346 states and 485 transitions. Second operand has 44 states, 44 states have (on average 4.454545454545454) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:19,844 INFO L93 Difference]: Finished difference Result 875 states and 1237 transitions. [2024-11-16 11:56:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 11:56:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 4.454545454545454) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 11:56:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:19,847 INFO L225 Difference]: With dead ends: 875 [2024-11-16 11:56:19,847 INFO L226 Difference]: Without dead ends: 584 [2024-11-16 11:56:19,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=305, Invalid=3601, Unknown=0, NotChecked=0, Total=3906 [2024-11-16 11:56:19,849 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 480 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:19,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 3717 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 11:56:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-16 11:56:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 408. [2024-11-16 11:56:19,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.3955773955773956) internal successors, (568), 407 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 568 transitions. [2024-11-16 11:56:19,859 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 568 transitions. Word has length 77 [2024-11-16 11:56:19,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:19,860 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 568 transitions. [2024-11-16 11:56:19,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.454545454545454) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 568 transitions. [2024-11-16 11:56:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 11:56:19,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:19,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:19,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 11:56:20,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:20,066 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:20,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:20,066 INFO L85 PathProgramCache]: Analyzing trace with hash 224324609, now seen corresponding path program 1 times [2024-11-16 11:56:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:20,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310365516] [2024-11-16 11:56:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:20,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:20,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:20,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:20,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310365516] [2024-11-16 11:56:20,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310365516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:20,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:20,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 11:56:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284669631] [2024-11-16 11:56:20,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:20,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 11:56:20,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:20,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 11:56:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:56:20,617 INFO L87 Difference]: Start difference. First operand 408 states and 568 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:21,017 INFO L93 Difference]: Finished difference Result 741 states and 1039 transitions. [2024-11-16 11:56:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 11:56:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-16 11:56:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:21,019 INFO L225 Difference]: With dead ends: 741 [2024-11-16 11:56:21,019 INFO L226 Difference]: Without dead ends: 416 [2024-11-16 11:56:21,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-16 11:56:21,020 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 104 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:21,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1111 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:56:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-16 11:56:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-16 11:56:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.3879518072289156) internal successors, (576), 415 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 576 transitions. [2024-11-16 11:56:21,030 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 576 transitions. Word has length 77 [2024-11-16 11:56:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:21,031 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 576 transitions. [2024-11-16 11:56:21,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 576 transitions. [2024-11-16 11:56:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 11:56:21,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:21,032 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:21,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:56:21,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:21,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash -271727923, now seen corresponding path program 1 times [2024-11-16 11:56:21,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:21,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034378] [2024-11-16 11:56:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:21,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:21,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034378] [2024-11-16 11:56:21,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:21,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:21,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459192599] [2024-11-16 11:56:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:21,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:21,224 INFO L87 Difference]: Start difference. First operand 416 states and 576 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:21,324 INFO L93 Difference]: Finished difference Result 716 states and 995 transitions. [2024-11-16 11:56:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:21,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-16 11:56:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:21,326 INFO L225 Difference]: With dead ends: 716 [2024-11-16 11:56:21,326 INFO L226 Difference]: Without dead ends: 355 [2024-11-16 11:56:21,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:56:21,327 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 60 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:21,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 466 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:21,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-16 11:56:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-16 11:56:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.3785310734463276) internal successors, (488), 354 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 488 transitions. [2024-11-16 11:56:21,335 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 488 transitions. Word has length 77 [2024-11-16 11:56:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:21,335 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 488 transitions. [2024-11-16 11:56:21,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 488 transitions. [2024-11-16 11:56:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 11:56:21,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:21,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:21,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:56:21,337 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:21,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:21,338 INFO L85 PathProgramCache]: Analyzing trace with hash 948504641, now seen corresponding path program 1 times [2024-11-16 11:56:21,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:21,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037399254] [2024-11-16 11:56:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:21,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:22,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037399254] [2024-11-16 11:56:22,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037399254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775124949] [2024-11-16 11:56:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:22,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:22,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:22,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 11:56:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:22,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-16 11:56:22,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 11:56:22,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:22,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775124949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:22,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:22,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 13] total 24 [2024-11-16 11:56:22,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993748142] [2024-11-16 11:56:22,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:22,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 11:56:22,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 11:56:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-11-16 11:56:22,774 INFO L87 Difference]: Start difference. First operand 355 states and 488 transitions. Second operand has 24 states, 24 states have (on average 6.166666666666667) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:23,258 INFO L93 Difference]: Finished difference Result 1029 states and 1432 transitions. [2024-11-16 11:56:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:56:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.166666666666667) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 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 78 [2024-11-16 11:56:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:23,262 INFO L225 Difference]: With dead ends: 1029 [2024-11-16 11:56:23,263 INFO L226 Difference]: Without dead ends: 721 [2024-11-16 11:56:23,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 141 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2024-11-16 11:56:23,265 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 415 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:23,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1718 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:56:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-16 11:56:23,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 631. [2024-11-16 11:56:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 630 states have (on average 1.3761904761904762) internal successors, (867), 630 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 867 transitions. [2024-11-16 11:56:23,278 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 867 transitions. Word has length 78 [2024-11-16 11:56:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:23,279 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 867 transitions. [2024-11-16 11:56:23,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.166666666666667) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 867 transitions. [2024-11-16 11:56:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 11:56:23,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:23,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:23,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 11:56:23,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 11:56:23,483 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:23,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash 612028008, now seen corresponding path program 1 times [2024-11-16 11:56:23,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:23,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82629356] [2024-11-16 11:56:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82629356] [2024-11-16 11:56:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82629356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140204845] [2024-11-16 11:56:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:23,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:23,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:23,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:23,751 INFO L87 Difference]: Start difference. First operand 631 states and 867 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:23,888 INFO L93 Difference]: Finished difference Result 1129 states and 1558 transitions. [2024-11-16 11:56:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:23,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-16 11:56:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:23,891 INFO L225 Difference]: With dead ends: 1129 [2024-11-16 11:56:23,892 INFO L226 Difference]: Without dead ends: 635 [2024-11-16 11:56:23,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:23,893 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 47 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:23,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 702 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-16 11:56:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2024-11-16 11:56:23,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 1.3675078864353312) internal successors, (867), 634 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 867 transitions. [2024-11-16 11:56:23,905 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 867 transitions. Word has length 78 [2024-11-16 11:56:23,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:23,905 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 867 transitions. [2024-11-16 11:56:23,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:23,905 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 867 transitions. [2024-11-16 11:56:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 11:56:23,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:23,906 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:23,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 11:56:23,907 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:23,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:23,907 INFO L85 PathProgramCache]: Analyzing trace with hash 985749195, now seen corresponding path program 1 times [2024-11-16 11:56:23,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:23,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608608502] [2024-11-16 11:56:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:23,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:24,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608608502] [2024-11-16 11:56:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608608502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:24,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:24,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:56:24,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138370880] [2024-11-16 11:56:24,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:24,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:56:24,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:24,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:56:24,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:24,278 INFO L87 Difference]: Start difference. First operand 635 states and 867 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:24,452 INFO L93 Difference]: Finished difference Result 1169 states and 1606 transitions. [2024-11-16 11:56:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:56:24,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-16 11:56:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:24,455 INFO L225 Difference]: With dead ends: 1169 [2024-11-16 11:56:24,455 INFO L226 Difference]: Without dead ends: 655 [2024-11-16 11:56:24,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:56:24,456 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 60 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:24,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 729 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-16 11:56:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2024-11-16 11:56:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.3623853211009174) internal successors, (891), 654 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 891 transitions. [2024-11-16 11:56:24,468 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 891 transitions. Word has length 78 [2024-11-16 11:56:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:24,468 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 891 transitions. [2024-11-16 11:56:24,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 891 transitions. [2024-11-16 11:56:24,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 11:56:24,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:24,469 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:24,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:56:24,470 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:24,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash -584747920, now seen corresponding path program 1 times [2024-11-16 11:56:24,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:24,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980910274] [2024-11-16 11:56:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:24,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:24,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:24,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980910274] [2024-11-16 11:56:24,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980910274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:24,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:24,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898712928] [2024-11-16 11:56:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:24,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:24,646 INFO L87 Difference]: Start difference. First operand 655 states and 891 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:24,736 INFO L93 Difference]: Finished difference Result 1193 states and 1630 transitions. [2024-11-16 11:56:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:24,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-16 11:56:24,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:24,739 INFO L225 Difference]: With dead ends: 1193 [2024-11-16 11:56:24,739 INFO L226 Difference]: Without dead ends: 629 [2024-11-16 11:56:24,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:56:24,741 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 50 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:24,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 479 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:24,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-16 11:56:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2024-11-16 11:56:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.355095541401274) internal successors, (851), 628 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 851 transitions. [2024-11-16 11:56:24,752 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 851 transitions. Word has length 78 [2024-11-16 11:56:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:24,752 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 851 transitions. [2024-11-16 11:56:24,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 851 transitions. [2024-11-16 11:56:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 11:56:24,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:24,753 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:24,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 11:56:24,753 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:24,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash 773269357, now seen corresponding path program 1 times [2024-11-16 11:56:24,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:24,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253985785] [2024-11-16 11:56:24,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:25,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:25,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253985785] [2024-11-16 11:56:25,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253985785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:25,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:25,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:25,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407208713] [2024-11-16 11:56:25,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:25,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:25,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:25,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:25,086 INFO L87 Difference]: Start difference. First operand 629 states and 851 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:25,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:25,220 INFO L93 Difference]: Finished difference Result 1089 states and 1496 transitions. [2024-11-16 11:56:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:25,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-16 11:56:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:25,223 INFO L225 Difference]: With dead ends: 1089 [2024-11-16 11:56:25,223 INFO L226 Difference]: Without dead ends: 631 [2024-11-16 11:56:25,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:25,225 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 39 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:25,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 684 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-16 11:56:25,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2024-11-16 11:56:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.3519108280254777) internal successors, (849), 628 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 849 transitions. [2024-11-16 11:56:25,237 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 849 transitions. Word has length 79 [2024-11-16 11:56:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:25,237 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 849 transitions. [2024-11-16 11:56:25,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 849 transitions. [2024-11-16 11:56:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 11:56:25,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:25,238 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:25,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 11:56:25,239 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:25,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:25,239 INFO L85 PathProgramCache]: Analyzing trace with hash 244568865, now seen corresponding path program 1 times [2024-11-16 11:56:25,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:25,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700970473] [2024-11-16 11:56:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:25,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700970473] [2024-11-16 11:56:25,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700970473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:25,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 11:56:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169321860] [2024-11-16 11:56:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:25,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 11:56:25,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 11:56:25,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:56:25,784 INFO L87 Difference]: Start difference. First operand 629 states and 849 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:26,031 INFO L93 Difference]: Finished difference Result 1097 states and 1502 transitions. [2024-11-16 11:56:26,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 11:56:26,031 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-16 11:56:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:26,034 INFO L225 Difference]: With dead ends: 1097 [2024-11-16 11:56:26,035 INFO L226 Difference]: Without dead ends: 633 [2024-11-16 11:56:26,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-16 11:56:26,037 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:26,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1080 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:26,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-16 11:56:26,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 631. [2024-11-16 11:56:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 630 states have (on average 1.3476190476190477) internal successors, (849), 630 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 849 transitions. [2024-11-16 11:56:26,047 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 849 transitions. Word has length 79 [2024-11-16 11:56:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:26,047 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 849 transitions. [2024-11-16 11:56:26,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 849 transitions. [2024-11-16 11:56:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 11:56:26,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:26,049 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:26,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 11:56:26,049 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:26,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1242484866, now seen corresponding path program 1 times [2024-11-16 11:56:26,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:26,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113292215] [2024-11-16 11:56:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:26,317 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:26,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:26,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113292215] [2024-11-16 11:56:26,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113292215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:26,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:26,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:26,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948971579] [2024-11-16 11:56:26,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:26,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:26,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:26,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:26,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:26,319 INFO L87 Difference]: Start difference. First operand 631 states and 849 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:26,448 INFO L93 Difference]: Finished difference Result 1288 states and 1743 transitions. [2024-11-16 11:56:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:26,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-16 11:56:26,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:26,451 INFO L225 Difference]: With dead ends: 1288 [2024-11-16 11:56:26,452 INFO L226 Difference]: Without dead ends: 696 [2024-11-16 11:56:26,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:26,453 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 9 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:26,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 736 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-16 11:56:26,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 691. [2024-11-16 11:56:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.3478260869565217) internal successors, (930), 690 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 930 transitions. [2024-11-16 11:56:26,466 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 930 transitions. Word has length 79 [2024-11-16 11:56:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:26,466 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 930 transitions. [2024-11-16 11:56:26,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 930 transitions. [2024-11-16 11:56:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 11:56:26,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:26,468 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:26,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 11:56:26,468 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:26,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash -567506825, now seen corresponding path program 1 times [2024-11-16 11:56:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732382683] [2024-11-16 11:56:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:26,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:26,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732382683] [2024-11-16 11:56:26,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732382683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:26,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:26,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:56:26,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535145972] [2024-11-16 11:56:26,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:26,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:56:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:56:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:56:26,657 INFO L87 Difference]: Start difference. First operand 691 states and 930 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:26,752 INFO L93 Difference]: Finished difference Result 1334 states and 1799 transitions. [2024-11-16 11:56:26,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:26,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-16 11:56:26,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:26,755 INFO L225 Difference]: With dead ends: 1334 [2024-11-16 11:56:26,755 INFO L226 Difference]: Without dead ends: 686 [2024-11-16 11:56:26,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:26,756 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 70 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:26,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 474 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-16 11:56:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2024-11-16 11:56:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.3445255474452555) internal successors, (921), 685 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 921 transitions. [2024-11-16 11:56:26,769 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 921 transitions. Word has length 80 [2024-11-16 11:56:26,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:26,769 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 921 transitions. [2024-11-16 11:56:26,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 921 transitions. [2024-11-16 11:56:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 11:56:26,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:26,771 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:26,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 11:56:26,771 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:26,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:26,771 INFO L85 PathProgramCache]: Analyzing trace with hash 41723693, now seen corresponding path program 1 times [2024-11-16 11:56:26,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:26,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472996116] [2024-11-16 11:56:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:27,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:27,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472996116] [2024-11-16 11:56:27,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472996116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:27,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:27,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 11:56:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054589097] [2024-11-16 11:56:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:27,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 11:56:27,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:27,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 11:56:27,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:56:27,298 INFO L87 Difference]: Start difference. First operand 686 states and 921 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:27,603 INFO L93 Difference]: Finished difference Result 1169 states and 1602 transitions. [2024-11-16 11:56:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 11:56:27,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-16 11:56:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:27,606 INFO L225 Difference]: With dead ends: 1169 [2024-11-16 11:56:27,606 INFO L226 Difference]: Without dead ends: 651 [2024-11-16 11:56:27,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-16 11:56:27,608 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 72 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:27,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 896 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-16 11:56:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2024-11-16 11:56:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 650 states have (on average 1.3492307692307692) internal successors, (877), 650 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 877 transitions. [2024-11-16 11:56:27,623 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 877 transitions. Word has length 80 [2024-11-16 11:56:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:27,623 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 877 transitions. [2024-11-16 11:56:27,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 877 transitions. [2024-11-16 11:56:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 11:56:27,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:27,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:27,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 11:56:27,625 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:27,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1162272880, now seen corresponding path program 1 times [2024-11-16 11:56:27,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530140948] [2024-11-16 11:56:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:28,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530140948] [2024-11-16 11:56:28,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530140948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:28,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:28,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:56:28,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223669558] [2024-11-16 11:56:28,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:28,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:56:28,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:28,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:56:28,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:28,116 INFO L87 Difference]: Start difference. First operand 651 states and 877 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:28,305 INFO L93 Difference]: Finished difference Result 905 states and 1241 transitions. [2024-11-16 11:56:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:56:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-16 11:56:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:28,308 INFO L225 Difference]: With dead ends: 905 [2024-11-16 11:56:28,308 INFO L226 Difference]: Without dead ends: 624 [2024-11-16 11:56:28,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:28,309 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 34 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:28,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 911 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:28,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-16 11:56:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2024-11-16 11:56:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 623 states have (on average 1.3531300160513644) internal successors, (843), 623 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 843 transitions. [2024-11-16 11:56:28,327 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 843 transitions. Word has length 80 [2024-11-16 11:56:28,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:28,327 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 843 transitions. [2024-11-16 11:56:28,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 843 transitions. [2024-11-16 11:56:28,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 11:56:28,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:28,328 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:28,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 11:56:28,328 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:28,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 579632972, now seen corresponding path program 1 times [2024-11-16 11:56:28,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:28,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405888323] [2024-11-16 11:56:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:28,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:28,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:28,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405888323] [2024-11-16 11:56:28,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405888323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:28,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 11:56:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219220041] [2024-11-16 11:56:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:28,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 11:56:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:28,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 11:56:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-16 11:56:28,979 INFO L87 Difference]: Start difference. First operand 624 states and 843 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:29,543 INFO L93 Difference]: Finished difference Result 1194 states and 1624 transitions. [2024-11-16 11:56:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:56:29,544 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-16 11:56:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:29,547 INFO L225 Difference]: With dead ends: 1194 [2024-11-16 11:56:29,547 INFO L226 Difference]: Without dead ends: 652 [2024-11-16 11:56:29,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-16 11:56:29,549 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 111 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:29,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1424 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:56:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-16 11:56:29,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 646. [2024-11-16 11:56:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 645 states have (on average 1.3472868217054264) internal successors, (869), 645 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:29,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 869 transitions. [2024-11-16 11:56:29,562 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 869 transitions. Word has length 80 [2024-11-16 11:56:29,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:29,563 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 869 transitions. [2024-11-16 11:56:29,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 869 transitions. [2024-11-16 11:56:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 11:56:29,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:29,564 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:29,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 11:56:29,564 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:29,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2047121240, now seen corresponding path program 1 times [2024-11-16 11:56:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:29,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458919080] [2024-11-16 11:56:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:29,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:30,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458919080] [2024-11-16 11:56:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458919080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831812262] [2024-11-16 11:56:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:30,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:30,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:30,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:30,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 11:56:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:30,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-16 11:56:30,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:32,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:34,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831812262] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:34,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 11:56:34,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [19, 26] total 68 [2024-11-16 11:56:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980359792] [2024-11-16 11:56:34,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:34,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 11:56:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 11:56:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4238, Unknown=0, NotChecked=0, Total=4556 [2024-11-16 11:56:34,490 INFO L87 Difference]: Start difference. First operand 646 states and 869 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:36,118 INFO L93 Difference]: Finished difference Result 1051 states and 1439 transitions. [2024-11-16 11:56:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 11:56:36,119 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 11:56:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:36,121 INFO L225 Difference]: With dead ends: 1051 [2024-11-16 11:56:36,122 INFO L226 Difference]: Without dead ends: 797 [2024-11-16 11:56:36,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 114 SyntacticMatches, 5 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1808 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=360, Invalid=4752, Unknown=0, NotChecked=0, Total=5112 [2024-11-16 11:56:36,124 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 31 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:36,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2772 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 11:56:36,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-16 11:56:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 765. [2024-11-16 11:56:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 764 states have (on average 1.3547120418848169) internal successors, (1035), 764 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1035 transitions. [2024-11-16 11:56:36,139 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1035 transitions. Word has length 81 [2024-11-16 11:56:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:36,140 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1035 transitions. [2024-11-16 11:56:36,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1035 transitions. [2024-11-16 11:56:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 11:56:36,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:36,141 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:36,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 11:56:36,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-16 11:56:36,342 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:36,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash 168745600, now seen corresponding path program 1 times [2024-11-16 11:56:36,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:36,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208019355] [2024-11-16 11:56:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:36,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:37,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208019355] [2024-11-16 11:56:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208019355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785053765] [2024-11-16 11:56:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:37,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:37,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:37,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:37,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 11:56:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:37,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-16 11:56:37,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:38,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:39,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785053765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:39,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:39,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20, 22] total 57 [2024-11-16 11:56:39,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026426201] [2024-11-16 11:56:39,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:39,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-16 11:56:39,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-16 11:56:39,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3002, Unknown=0, NotChecked=0, Total=3192 [2024-11-16 11:56:39,414 INFO L87 Difference]: Start difference. First operand 765 states and 1035 transitions. Second operand has 57 states, 57 states have (on average 4.017543859649122) internal successors, (229), 57 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:41,078 INFO L93 Difference]: Finished difference Result 1130 states and 1553 transitions. [2024-11-16 11:56:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 11:56:41,078 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 4.017543859649122) internal successors, (229), 57 states have internal predecessors, (229), 0 states have call successors, (0), 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 81 [2024-11-16 11:56:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:41,081 INFO L225 Difference]: With dead ends: 1130 [2024-11-16 11:56:41,081 INFO L226 Difference]: Without dead ends: 810 [2024-11-16 11:56:41,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=327, Invalid=4643, Unknown=0, NotChecked=0, Total=4970 [2024-11-16 11:56:41,084 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 186 mSDsluCounter, 3697 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 3801 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:41,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 3801 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 11:56:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-16 11:56:41,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 804. [2024-11-16 11:56:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 1.3437110834371109) internal successors, (1079), 803 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1079 transitions. [2024-11-16 11:56:41,104 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1079 transitions. Word has length 81 [2024-11-16 11:56:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:41,104 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1079 transitions. [2024-11-16 11:56:41,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 4.017543859649122) internal successors, (229), 57 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1079 transitions. [2024-11-16 11:56:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 11:56:41,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:41,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:41,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 11:56:41,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:41,311 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1759880100, now seen corresponding path program 1 times [2024-11-16 11:56:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:41,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499735373] [2024-11-16 11:56:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:41,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499735373] [2024-11-16 11:56:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499735373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:41,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:41,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:56:41,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678687360] [2024-11-16 11:56:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:41,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:56:41,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:56:41,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:56:41,641 INFO L87 Difference]: Start difference. First operand 804 states and 1079 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:41,782 INFO L93 Difference]: Finished difference Result 1445 states and 1969 transitions. [2024-11-16 11:56:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:56:41,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 11:56:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:41,785 INFO L225 Difference]: With dead ends: 1445 [2024-11-16 11:56:41,785 INFO L226 Difference]: Without dead ends: 683 [2024-11-16 11:56:41,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:56:41,787 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 57 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:41,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 583 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:56:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-16 11:56:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2024-11-16 11:56:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.3782991202346042) internal successors, (940), 682 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 940 transitions. [2024-11-16 11:56:41,799 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 940 transitions. Word has length 81 [2024-11-16 11:56:41,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:41,800 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 940 transitions. [2024-11-16 11:56:41,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 940 transitions. [2024-11-16 11:56:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 11:56:41,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:41,801 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:41,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 11:56:41,801 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:41,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1459766714, now seen corresponding path program 1 times [2024-11-16 11:56:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:41,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194501806] [2024-11-16 11:56:41,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:41,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:42,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:42,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194501806] [2024-11-16 11:56:42,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194501806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:42,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:42,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:56:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968425648] [2024-11-16 11:56:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:42,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:56:42,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:42,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:56:42,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:42,365 INFO L87 Difference]: Start difference. First operand 683 states and 940 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:42,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:42,552 INFO L93 Difference]: Finished difference Result 1235 states and 1731 transitions. [2024-11-16 11:56:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:56:42,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 11:56:42,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:42,555 INFO L225 Difference]: With dead ends: 1235 [2024-11-16 11:56:42,556 INFO L226 Difference]: Without dead ends: 669 [2024-11-16 11:56:42,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:56:42,557 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 14 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:42,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 838 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-16 11:56:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 644. [2024-11-16 11:56:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.3685847589424571) internal successors, (880), 643 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 880 transitions. [2024-11-16 11:56:42,568 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 880 transitions. Word has length 82 [2024-11-16 11:56:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:42,569 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 880 transitions. [2024-11-16 11:56:42,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 880 transitions. [2024-11-16 11:56:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 11:56:42,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:42,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:42,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 11:56:42,571 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:42,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2100452700, now seen corresponding path program 1 times [2024-11-16 11:56:42,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:42,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733985352] [2024-11-16 11:56:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:42,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733985352] [2024-11-16 11:56:44,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733985352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9706276] [2024-11-16 11:56:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:44,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:44,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 11:56:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:44,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-16 11:56:44,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:46,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:56:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:47,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9706276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:56:47,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:56:47,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 23] total 62 [2024-11-16 11:56:47,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267649456] [2024-11-16 11:56:47,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:56:47,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-16 11:56:47,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-16 11:56:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=3465, Unknown=0, NotChecked=0, Total=3782 [2024-11-16 11:56:47,623 INFO L87 Difference]: Start difference. First operand 644 states and 880 transitions. Second operand has 62 states, 62 states have (on average 3.7419354838709675) internal successors, (232), 62 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:51,774 INFO L93 Difference]: Finished difference Result 1974 states and 2753 transitions. [2024-11-16 11:56:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-16 11:56:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.7419354838709675) internal successors, (232), 62 states have internal predecessors, (232), 0 states have call successors, (0), 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 82 [2024-11-16 11:56:51,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:51,780 INFO L225 Difference]: With dead ends: 1974 [2024-11-16 11:56:51,780 INFO L226 Difference]: Without dead ends: 1427 [2024-11-16 11:56:51,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2280 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=712, Invalid=10000, Unknown=0, NotChecked=0, Total=10712 [2024-11-16 11:56:51,784 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 431 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:51,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 3813 Invalid, 3606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 11:56:51,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2024-11-16 11:56:51,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 954. [2024-11-16 11:56:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 1.3830010493179434) internal successors, (1318), 953 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1318 transitions. [2024-11-16 11:56:51,806 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1318 transitions. Word has length 82 [2024-11-16 11:56:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:51,807 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1318 transitions. [2024-11-16 11:56:51,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.7419354838709675) internal successors, (232), 62 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:51,807 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1318 transitions. [2024-11-16 11:56:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 11:56:51,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:51,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:51,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 11:56:52,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-16 11:56:52,009 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:52,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:52,010 INFO L85 PathProgramCache]: Analyzing trace with hash 421747993, now seen corresponding path program 1 times [2024-11-16 11:56:52,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:52,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127361637] [2024-11-16 11:56:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:55,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:55,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127361637] [2024-11-16 11:56:55,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127361637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:55,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150156947] [2024-11-16 11:56:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:55,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:55,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:55,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:55,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 11:56:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:55,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-16 11:56:55,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:56,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:56:56,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150156947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:56,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 11:56:56,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [36] total 47 [2024-11-16 11:56:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906155894] [2024-11-16 11:56:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:56,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 11:56:56,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 11:56:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=2049, Unknown=0, NotChecked=0, Total=2162 [2024-11-16 11:56:56,152 INFO L87 Difference]: Start difference. First operand 954 states and 1318 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:56,631 INFO L93 Difference]: Finished difference Result 1459 states and 2039 transitions. [2024-11-16 11:56:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 11:56:56,631 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 11:56:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:56,634 INFO L225 Difference]: With dead ends: 1459 [2024-11-16 11:56:56,634 INFO L226 Difference]: Without dead ends: 964 [2024-11-16 11:56:56,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=185, Invalid=3121, Unknown=0, NotChecked=0, Total=3306 [2024-11-16 11:56:56,638 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 85 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:56,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 626 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:56:56,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-16 11:56:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 963. [2024-11-16 11:56:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.3804573804573805) internal successors, (1328), 962 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1328 transitions. [2024-11-16 11:56:56,658 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1328 transitions. Word has length 83 [2024-11-16 11:56:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:56,659 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1328 transitions. [2024-11-16 11:56:56,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1328 transitions. [2024-11-16 11:56:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 11:56:56,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:56,660 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:56,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 11:56:56,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:56,861 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:56,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1708821798, now seen corresponding path program 1 times [2024-11-16 11:56:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:56,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591239412] [2024-11-16 11:56:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:57,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:57,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591239412] [2024-11-16 11:56:57,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591239412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:56:57,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863759403] [2024-11-16 11:56:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:56:57,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:57,316 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:56:57,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 11:56:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:57,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-16 11:56:57,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:56:58,030 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:58,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:56:58,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863759403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:58,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 11:56:58,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [12] total 27 [2024-11-16 11:56:58,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124577869] [2024-11-16 11:56:58,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:58,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 11:56:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 11:56:58,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2024-11-16 11:56:58,033 INFO L87 Difference]: Start difference. First operand 963 states and 1328 transitions. Second operand has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:59,095 INFO L93 Difference]: Finished difference Result 2193 states and 3106 transitions. [2024-11-16 11:56:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 11:56:59,096 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 11:56:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:59,101 INFO L225 Difference]: With dead ends: 2193 [2024-11-16 11:56:59,101 INFO L226 Difference]: Without dead ends: 1697 [2024-11-16 11:56:59,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=1453, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 11:56:59,103 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 165 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:59,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3180 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:56:59,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-11-16 11:56:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1269. [2024-11-16 11:56:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.4093059936908516) internal successors, (1787), 1268 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1787 transitions. [2024-11-16 11:56:59,128 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1787 transitions. Word has length 83 [2024-11-16 11:56:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:59,128 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1787 transitions. [2024-11-16 11:56:59,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1787 transitions. [2024-11-16 11:56:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 11:56:59,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:59,130 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:59,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-16 11:56:59,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-16 11:56:59,331 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:59,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1733993454, now seen corresponding path program 1 times [2024-11-16 11:56:59,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:59,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343709916] [2024-11-16 11:56:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:59,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:05,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:05,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343709916] [2024-11-16 11:57:05,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343709916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:05,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:05,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-16 11:57:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589877967] [2024-11-16 11:57:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:05,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 11:57:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 11:57:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2024-11-16 11:57:05,238 INFO L87 Difference]: Start difference. First operand 1269 states and 1787 transitions. Second operand has 23 states, 23 states have (on average 3.608695652173913) internal successors, (83), 23 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:09,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []