./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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.extinction.4.prop1-func-interl.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 e0a8f2968e654de46c8089830a29766330752d0e2fa5f92aa0d2588d0d20bb45 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 23:58:14,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 23:58:14,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-11 23:58:14,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 23:58:14,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 23:58:14,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 23:58:14,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 23:58:14,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 23:58:14,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 23:58:14,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 23:58:14,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 23:58:14,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 23:58:14,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 23:58:14,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 23:58:14,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 23:58:14,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 23:58:14,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 23:58:14,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 23:58:14,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 23:58:14,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 23:58:14,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 23:58:14,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 23:58:14,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 23:58:14,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 23:58:14,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 23:58:14,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 23:58:14,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 23:58:14,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 23:58:14,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 23:58:14,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:58:14,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 23:58:14,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 23:58:14,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 23:58:14,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a8f2968e654de46c8089830a29766330752d0e2fa5f92aa0d2588d0d20bb45 [2024-11-11 23:58:14,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 23:58:14,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 23:58:14,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 23:58:14,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 23:58:14,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 23:58:14,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-11 23:58:15,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 23:58:16,225 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 23:58:16,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-11 23:58:16,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37034b607/21122d1f6ab64914b32d5116ebaca563/FLAGca991c048 [2024-11-11 23:58:16,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37034b607/21122d1f6ab64914b32d5116ebaca563 [2024-11-11 23:58:16,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 23:58:16,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 23:58:16,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 23:58:16,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 23:58:16,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 23:58:16,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:58:16" (1/1) ... [2024-11-11 23:58:16,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665890e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:16, skipping insertion in model container [2024-11-11 23:58:16,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:58:16" (1/1) ... [2024-11-11 23:58:16,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 23:58:16,617 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.extinction.4.prop1-func-interl.c[1177,1190] [2024-11-11 23:58:17,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:58:17,296 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 23:58:17,305 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.extinction.4.prop1-func-interl.c[1177,1190] [2024-11-11 23:58:17,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:58:17,735 INFO L204 MainTranslator]: Completed translation [2024-11-11 23:58:17,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17 WrapperNode [2024-11-11 23:58:17,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 23:58:17,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 23:58:17,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 23:58:17,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 23:58:17,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:17,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:20,264 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26248 [2024-11-11 23:58:20,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 23:58:20,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 23:58:20,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 23:58:20,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 23:58:20,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:20,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:20,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:21,320 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]. [2024-11-11 23:58:21,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:21,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 23:58:22,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 23:58:22,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 23:58:22,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 23:58:22,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (1/1) ... [2024-11-11 23:58:22,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:58:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:58:22,966 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) [2024-11-11 23:58:22,969 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 [2024-11-11 23:58:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 23:58:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 23:58:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 23:58:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 23:58:23,891 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 23:58:23,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 23:59:24,750 INFO L? ?]: Removed 14705 outVars from TransFormulas that were not future-live. [2024-11-11 23:59:24,750 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 23:59:24,851 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 23:59:24,851 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 23:59:24,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:24 BoogieIcfgContainer [2024-11-11 23:59:24,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 23:59:24,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 23:59:24,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 23:59:24,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 23:59:24,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:58:16" (1/3) ... [2024-11-11 23:59:24,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e1c880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:59:24, skipping insertion in model container [2024-11-11 23:59:24,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:58:17" (2/3) ... [2024-11-11 23:59:24,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e1c880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:59:24, skipping insertion in model container [2024-11-11 23:59:24,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:24" (3/3) ... [2024-11-11 23:59:24,862 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.4.prop1-func-interl.c [2024-11-11 23:59:24,877 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 23:59:24,877 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 23:59:25,071 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 23:59:25,076 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;@17fc1430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 23:59:25,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 23:59:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 9232 states, 9230 states have (on average 1.5028169014084507) internal successors, (13871), 9231 states have internal predecessors, (13871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-11 23:59:25,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:59:25,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:59:25,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:59:25,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:59:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1098846559, now seen corresponding path program 1 times [2024-11-11 23:59:25,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:59:25,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087069108] [2024-11-11 23:59:25,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:59:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:59:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:59:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:59:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:59:26,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087069108] [2024-11-11 23:59:26,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087069108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:59:26,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:59:26,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:59:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414752033] [2024-11-11 23:59:26,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:59:26,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:59:26,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:59:26,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:59:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:59:26,828 INFO L87 Difference]: Start difference. First operand has 9232 states, 9230 states have (on average 1.5028169014084507) internal successors, (13871), 9231 states have internal predecessors, (13871), 0 states have call successors, (0), 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 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:59:33,951 INFO L93 Difference]: Finished difference Result 26890 states and 40411 transitions. [2024-11-11 23:59:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 23:59:33,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 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 365 [2024-11-11 23:59:33,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:59:34,016 INFO L225 Difference]: With dead ends: 26890 [2024-11-11 23:59:34,016 INFO L226 Difference]: Without dead ends: 18052 [2024-11-11 23:59:34,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:59:34,037 INFO L435 NwaCegarLoop]: 10741 mSDtfsCounter, 13494 mSDsluCounter, 31874 mSDsCounter, 0 mSdLazyCounter, 12264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13494 SdHoareTripleChecker+Valid, 42615 SdHoareTripleChecker+Invalid, 12265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-11 23:59:34,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13494 Valid, 42615 Invalid, 12265 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12264 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-11 23:59:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18052 states. [2024-11-11 23:59:34,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18052 to 9544. [2024-11-11 23:59:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 9543 states have (on average 1.5024625379859582) internal successors, (14338), 9543 states have internal predecessors, (14338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 14338 transitions. [2024-11-11 23:59:34,339 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 14338 transitions. Word has length 365 [2024-11-11 23:59:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:59:34,340 INFO L471 AbstractCegarLoop]: Abstraction has 9544 states and 14338 transitions. [2024-11-11 23:59:34,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 14338 transitions. [2024-11-11 23:59:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-11 23:59:34,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:59:34,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:59:34,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 23:59:34,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:59:34,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:59:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash -725533124, now seen corresponding path program 1 times [2024-11-11 23:59:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:59:34,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172369126] [2024-11-11 23:59:34,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:59:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:59:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:59:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:59:35,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:59:35,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172369126] [2024-11-11 23:59:35,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172369126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:59:35,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:59:35,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:59:35,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790488895] [2024-11-11 23:59:35,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:59:35,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:59:35,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:59:35,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:59:35,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:59:35,117 INFO L87 Difference]: Start difference. First operand 9544 states and 14338 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:59:35,241 INFO L93 Difference]: Finished difference Result 9548 states and 14342 transitions. [2024-11-11 23:59:35,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:59:35,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 367 [2024-11-11 23:59:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:59:35,279 INFO L225 Difference]: With dead ends: 9548 [2024-11-11 23:59:35,282 INFO L226 Difference]: Without dead ends: 9546 [2024-11-11 23:59:35,287 INFO L434 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 [2024-11-11 23:59:35,289 INFO L435 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27724 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41589 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:59:35,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41589 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:59:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9546 states. [2024-11-11 23:59:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9546 to 9546. [2024-11-11 23:59:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9546 states, 9545 states have (on average 1.502357255107386) internal successors, (14340), 9545 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9546 states to 9546 states and 14340 transitions. [2024-11-11 23:59:35,442 INFO L78 Accepts]: Start accepts. Automaton has 9546 states and 14340 transitions. Word has length 367 [2024-11-11 23:59:35,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:59:35,444 INFO L471 AbstractCegarLoop]: Abstraction has 9546 states and 14340 transitions. [2024-11-11 23:59:35,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:35,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9546 states and 14340 transitions. [2024-11-11 23:59:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-11 23:59:35,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:59:35,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:59:35,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 23:59:35,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:59:35,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:59:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1014992871, now seen corresponding path program 1 times [2024-11-11 23:59:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:59:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543309542] [2024-11-11 23:59:35,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:59:35,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:59:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:59:35,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:59:35,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:59:35,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543309542] [2024-11-11 23:59:35,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543309542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:59:35,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:59:35,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:59:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082970418] [2024-11-11 23:59:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:59:35,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:59:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:59:35,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:59:35,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:59:35,933 INFO L87 Difference]: Start difference. First operand 9546 states and 14340 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:36,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:59:36,072 INFO L93 Difference]: Finished difference Result 18385 states and 27622 transitions. [2024-11-11 23:59:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:59:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 368 [2024-11-11 23:59:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:59:36,085 INFO L225 Difference]: With dead ends: 18385 [2024-11-11 23:59:36,086 INFO L226 Difference]: Without dead ends: 9548 [2024-11-11 23:59:36,095 INFO L434 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 [2024-11-11 23:59:36,096 INFO L435 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27720 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41585 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:59:36,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41585 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:59:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9548 states. [2024-11-11 23:59:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9548 to 9548. [2024-11-11 23:59:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9548 states, 9547 states have (on average 1.5022520163402115) internal successors, (14342), 9547 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9548 states to 9548 states and 14342 transitions. [2024-11-11 23:59:36,230 INFO L78 Accepts]: Start accepts. Automaton has 9548 states and 14342 transitions. Word has length 368 [2024-11-11 23:59:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:59:36,231 INFO L471 AbstractCegarLoop]: Abstraction has 9548 states and 14342 transitions. [2024-11-11 23:59:36,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9548 states and 14342 transitions. [2024-11-11 23:59:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-11 23:59:36,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:59:36,237 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:59:36,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 23:59:36,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:59:36,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:59:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1796995765, now seen corresponding path program 1 times [2024-11-11 23:59:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:59:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998003958] [2024-11-11 23:59:36,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:59:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:59:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:59:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:59:36,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:59:36,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998003958] [2024-11-11 23:59:36,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998003958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:59:36,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:59:36,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:59:36,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308435268] [2024-11-11 23:59:36,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:59:36,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:59:36,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:59:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:59:36,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:59:36,893 INFO L87 Difference]: Start difference. First operand 9548 states and 14342 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:59:37,033 INFO L93 Difference]: Finished difference Result 18389 states and 27626 transitions. [2024-11-11 23:59:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 23:59:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 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 369 [2024-11-11 23:59:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:59:37,046 INFO L225 Difference]: With dead ends: 18389 [2024-11-11 23:59:37,046 INFO L226 Difference]: Without dead ends: 9550 [2024-11-11 23:59:37,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:59:37,062 INFO L435 NwaCegarLoop]: 13865 mSDtfsCounter, 0 mSDsluCounter, 27714 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41579 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:59:37,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41579 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 23:59:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9550 states. [2024-11-11 23:59:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9550 to 9550. [2024-11-11 23:59:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 1.502146821656718) internal successors, (14344), 9549 states have internal predecessors, (14344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 14344 transitions. [2024-11-11 23:59:37,205 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 14344 transitions. Word has length 369 [2024-11-11 23:59:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:59:37,205 INFO L471 AbstractCegarLoop]: Abstraction has 9550 states and 14344 transitions. [2024-11-11 23:59:37,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:59:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 14344 transitions. [2024-11-11 23:59:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-11 23:59:37,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:59:37,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:59:37,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 23:59:37,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:59:37,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:59:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 781183008, now seen corresponding path program 1 times [2024-11-11 23:59:37,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:59:37,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769010470] [2024-11-11 23:59:37,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:59:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:59:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:59:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:59:37,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:59:37,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769010470] [2024-11-11 23:59:37,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769010470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:59:37,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:59:37,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:59:37,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200505212] [2024-11-11 23:59:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:59:37,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:59:37,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:59:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:59:37,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:59:37,748 INFO L87 Difference]: Start difference. First operand 9550 states and 14344 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)